Valves adjustment of the Dvig Bridgostone Lawn mowing Stihl. Intek I/C 6.5

valves, adjustment, dvig, lawn, mowing

Lawn mower Stihl FS130. Description, advantages and disadvantages of the model. Video review of the work

To understand this, you need to know the principle of operation of the unit as a whole. It happens so, just purchased, a new saw is not started, and running around the service centers begins, in such cases it is recommended:

Carefully read the instruction manual; In detail to study the method of first factory and run.mowing; Try to understand the principle of the product; How to pump gasoline and so on.

The quality of gasoline is poor; improper proportion of gasoline and oil; clogging of the filter of thin cleaning; The spark disappeared.

The lawn mower is not started after winter

In such cases, it is necessary to conduct maintenance of the unit. Remove the fuel system, including filters (air, fuel), disassemble the carburetor, clean each node, rinse. Pour the filters with air. Pay attention to the quality and octane fuel number.

It must be taken into account that the products of such well.known companies as Stihl, Husgvarna and other brands will not work on a cheap with a small octane number of gasoline. For them, suitable fuel from the AI ​​brand. 92 and higher with car gas stations and that, with well.proven ones, since gas stations are also bad gasoline. On the use of highly octane and high.quality gasoline, it will depend on how long the lawn mower will be used and how much it will last.

One more fact must be taken into account that with the long storage of diluted fuel mixture, it falls working qualities, which also leads to the consequences in which the lawn mower will not start. Therefore, it should be diluted with portions, that is, the amount of a mixture that is produced at a time. The operating instructions clearly describe and are given clarifications on the proportion of mixing gasoline and oil. Straighten compliance with the correct proportions will at least save you from several questions, why the lawn mower will not start and what to do in such cases.

The lawn mower starts and stalls. What to do?

There is a spark, and everything seems to be normal, but the lawn mower is not started, in such cases, you should check the air access valve into the fuel tank. Clogging of the valve leads to the creation of a vacuum in a tank, in which the carburetor does not receive gasoline, so the lawn mower will start, but then it will die out. To exclude this reason, you need to clean the valve and try to get a lawn mower with a not fully twisted tank traffic jam. 2. If at the same time the lawn mower is not started, you should remove and clean the fuel filter, as well as check all the parts of the carburetor, and then try to start. The lawn mower is not started again, the air filter is disconnected, try to get without it if the gas station has started to mean the reason in the air filter, replace it.

The lawn mower is not started, the spark is gone

The loss of the spark entails a check of contacts and the correctness of the clearance between them, conducting the wire to the candle and the candle itself. A method of checking the spark. to unscrew the candle, connect the wire to it, attach the candle sideways to the casing of the engine and pull the lawn.mower as if starting the starter several times, while you need to look at the corner and contact of the candle, the spark should run between them. If there is no sparks, take a new candle to do the same procedure, if the spark is not traced, the problem in the wire or contacts means it, it is better to replace them.

The lawn mower is not started on a cold

When starting a cold motor, it is not recommended to press the gas. Having tilted the lawn mower so that the air filter is on top, click on the fuel suction button 5-6 times, install the function of switching functions to the Start position, pull the starter’s cord several times until the motor starts up. After a few seconds of the engine, turn off the start system.

How to properly adjust

Before setting up the carburetor trimmer for the grass, it is necessary to do the following:

  • Rinse the engine;
  • replace or clean the spark plug;
  • change to a new one or clean the air filter (it is recommended to lay it out in warm, soap water, squeeze it out and let it dry well).

It is also necessary to install the cord of the right diameter in the trimmer coil or install knives-this is done so that in the process of configuration the engine has at least some load. After installing a cutting tool and starting a gasoline engine, let it warm up for 10 minutes.

If at the idle speed of the motor you noticed that the cutting tool rotates, then it is necessary to reduce engine speeds. This is done using the lower idle regulator, often marked with the letter “T”. The figure below shows the placement of regulators on the trimmer Husqvarna.

But, for example, on the STIHL trimmer, this screw may have a label “LA”.

So, turn the idle control regulator to the left, until the trimmer head is completely stopped.

To configure the carburetor, 3 regulators are used (screw).

  • The right regulator L tunes the level of enrichment of the combustible mixture at low speeds. It needs to be adjusted by the first. Get a maximum of turnover at idle. This is done using the regulator L, turning it to the left and right. After finding the point of maximum revolutions, return the regulator for half a turn to the left (against h. Arrows).
  • The lower regulator t (LA) is used to configure idle. Turning it to the left, the engine speed will begin to decline, and when the regulator is turned to the right, the revolutions will increase.
  • Left regulator h is responsible for enriching the combustible mixture at high speeds. The enrichment configuration completes the adjustment of the carburetor. Also, using this regulator, you can configure maximum speed, fuel consumption and engine power.

To exclude this trouble, adjustment will be required. With the working motor, give a full gas, then turn the “h” regulator to the right until a reduction in revolutions begins. After that, the “h” regulator must slowly scroll to the left until you hear the uneven operation of the engine. Then the regulator “h” should be rotated to the right until the moment of flat operation of the motor is heard.

After conducting the above actions, the setting of the carburetor can be considered completed. After proper adjustment, the engine must confidently gain momentum, a little four at a maximum of revolutions, and when working, an idle cutting tool should not turn. This manual is suitable for adjusting carburetors on the Huter, Patriot and others benzocos.

There are also carburetors without a screw that is responsible for enriching the combustible mixture at low speeds. That is, they have only 2 adjusting screws: a idle regulator and a quality fuel mixture regulator at high speeds. How to configure a carburetor of this type, you can find out from this video.

valves, adjustment, dvig, lawn, mowing

Reviews and secrets of operation of the Stihl FS 130 lawn mower

Arkhip wrote: one person was able to make another always can break.

Well, this is for us. just spit. The point is that these carburetors are not particularly repairing. You can’t get a lot there. The acquaintance washed from the syringe, under pressure from chloroform.

Today, before disassembly, I decided to start again. started normally. On idle seconds, then 10 then a smooth speed set and a smooth discharge and in this rhythm below the idle set of discharge. I wonder that the rhythm is chachery.Work speed is gaining before cutting off it will work normally.There was a touch from below. I’ll figure it out to unsubscribe.If anyone is familiar with the symptoms I will be happy for the advice.

Suppies. one of the reasons, this is instantly screwed by the carb. Sweet it if it is staggering. backlash then the studs unscrewed. As for Stile as braids for grass I want to say that the quality is falling. This fact is confirmed by sellers. I had 130 for a year of operation crumbled the engine in the trash. After that I am not friends with Shtil (((

acquired the same new carb. Shuttered to Starushkka pressed on a bee pulled the shmyrgalka earned enemy. soon cultivate the beds will unsubscribe how are you. Thank you all for participation.

Hello. On the stihl fs 100 gas station, air leaks between the valve lid and the cylinder. Visually, all surfaces are normal, there is no cavity. Replacing the gasket does not help. It is worth lining a new gasket with a high.temperature sealant?

Make Dirko. The leak threatens the possible kayuk piston.

It will go, but it is better to use “non.cursed”.

Cor wrote: Hello. On the stihl fs 100 gas station, air leaks between the valve lid and the cylinder. Visually, all surfaces are normal, there is no cavity. Replacing the gasket does not help. It is worth lining a new gasket with a high.temperature sealant?

Good day! Tell me how you revealed that the air leak is precisely on the valve cover? It can be the seals and the cartoon of the crankcase and the carburetor and the camshaft cover, but if you are sure that this is a gasket under the valve lid, then replace it with a new one, I would not advise you to plant it on a sealant.

Master-STIHL wrote: tell me how you revealed that the air leak is on the valve cover?

I made 2 plugs, one with a fitting from a bicycle chamber, screwed them, pumped up air, plunged the entire engine into the liquid. Even with a new laying from under the lid, bubbles come out very cheerfully.

Trek wrote: Suppies. one of the reasons is a kind of carb is incredibly fastened. Sweet it if it is staggering. backlash then the studs unscrewed. As for Stile as braids for grass I want to say that the quality is falling. This fact is confirmed by sellers. I had 130 for a year of operation crumbled the engine in the trash. After that I am not friends with Shtil (((

A longtime, of course, is the answer, but I will ask. Why 130? You are said in the signature: “Professional mowing”. why not 450 or 550.

My main direction is the mowing of summer cottages and small territories. Therefore, we are fully coping 2 kilowet technology. As for the Concrete Question. Such powerful equipment is needed only in the spring of 1 month. I have 3 kilowettles-of course the stupid is powerful, but it weighs quite a few. Very helped in weeds. But then for 3 months we have the heat and we cut the “arrows from plantain” and there is enough China. As for these models. they are very good but also very expensive. I buy something similar 30% cheaper than another company. And do not forget what to mow on your technique is one and mowing the same technique of Jamshutu or Vasya “Give a bottle”. these are different moments.

Trek wrote: My main direction is a mowing of summer cottages and small territories. Therefore, we are fully coping 2 kilowet technology. As for the Concrete Question. Such powerful equipment is needed only in the spring of 1 month. I have 3 kilowettles-of course the stupid is powerful, but it weighs quite a few. Very helped in weeds. But then for 3 months we have the heat and we cut the “arrows from plantain” and there is enough China. As for these models. they are very good but also very expensive. I buy something similar 30% cheaper than another company. And do not forget what to mow on your technique is one and mowing the same technique of Jamshutu or Vasya “Give a bottle”. these are different moments.

I see, thanks. It was not clear from the description that you are a kind of “foreman” that issues a technique

Replaced with 130 gas cable. Modernized cable, by reg. the sector moves in a tube. The whole gut with a cable has. wiring and switch, as well as the sector. Price 800 with kopecks. The rest is without complaints.

Tell me where you can buy spare parts on Stihl FS 130, you need a carburetor and ignition coil.

Write in a personal email. send

I got and I am a scythe STIHL 240. The store said that it does not need a run.in. Do they really end them at the factory. In the instructions about running.in a word.

Vikktor wrote: The store said that it does not need a run.in.

2-3 tanks for a half-gas knife, a mixture of 1/40 (per liter of gasoline 25 cubic meters) and after such a “running-in” can already be a fishing line on full gas.

Vikktor. pour less oil, I do not advise you to pour t.To you have gasoline with alcohol.

Opened the season, glutened the site, about 13 acres. Vibration appeared at times. The reason, as before, has not been clarified. Surrender for diagnostics in the service, last summer, did not help, the guys did not reveal anything. Most likely because vibration appears after about an hour of work, somewhere on the second tank. In short, x.h. Assumption: can an increased backlash in the clamping cover (pressure plate, a lid with a slotted sleeve, which dresses on the gear shaft of the gearbox) can cause vibration? The backlash in it was quite decent formed. production from dust and dirt.

I purchased such a mower (though with my hands, of course there wasn’t enough money for a new one, and China was afraid)

it is a little sad, I want to bring to mind

In principle, it works, even a little fishing line, but I don’t really like the work of the motor. some kind of sluggish gas reaction, unstable idle speeds (at the same time it starts clearly, there is no problem). most likely the case is in the carburetor, but as I did not look on the Internet. not I found any instructions on how to configure it. how to twist the adjusting screws or set up only in the service? For valve adjustment and setting the carburetor asked for 800 and up to 2 weeks

Trimmers for STIHL herb (Stihl)

Sadovy technology of StiHL has not needed excessive advertising for a long time. Gasoline and electric trimmers for the grass of this popular brand differ from market analogues with high quality assembly quality, increased reliability and ability to work stably when used under any load. All STIHL brand models are most convenient as possible and easy to maintain, which makes it possible to start their active use of any novice gardener.

The history of the STIHL family company originates in 1928. The founder of the now world famous brand was the young entrepreneur Andreas STIHL. a native of the German city of Zurich, who decided to open a small plant for the production of steam boilers and parts for washing machines in Stuttgart. Initially, only 2 people worked at the enterprise, but by 1929 the staff of the plant reached 20 employees.

Gradually, the company expanded. Family members of a young entrepreneur were actively accepted into it. In the early 40s of the XX century, the Family Council for Management of the Company, founded by Shtil, decided to expand the enterprise. This period was the beginning of the rapid growth and development of the German brand. By the beginning of the 60s, the family company managed to buy up the control packages of shares of several smaller German and foreign enterprises.

Today, STIHL is a brand that occupies the first place for the production of chainsaws. The German brand is also included in the TOP-3 for sales of gasoline and household electrical cos. All trimmers for grass made by the German brand STIHL are originally distinguished by the maximum reliability, high working resource, and a good selection of the components used.

Briggsstratton 750 Series

This engine model is equipped with a general.purpose horizontal shaft. The manufacturer guarantees high efficiency, as well as reliability, strength, durability due to the use of high.quality raw materials. The device copes with large loads without the need to “go for a break”.

The engine for motoblocks is endowed with an air filter, to which a replaced cartridge is attached, and it, in turn, is equipped with a foaming foam (it is also called a double filter element). Such a detail acts as protection against dust, sand, stones that come with air. After all, clogging of the engine is a common cause of damage to the device.

Cast iron is used to make the main parts. This material significantly increases the strength, performance of the carburetor. Thus, the risk of rapid wear of the walk.behind tract is reduced. Plus everything improves oil control necessary for full activity.

In this model, the valves are located on top. First of all, this affects the increase in the life of the device, and also positively affects fuel saving. Other spare parts affect the same indicators. bearings. In the XR750 model they are double ball.

The mechanical type of regulator allows you to change the speed of rotation. so, it will turn out to develop power to maximum indicators, which is necessary with intensive work.

  • The highest torque is 10.17 nm;
  • working volume. 163 cubic meters. cm;
  • the capacity of the fuel tank is 3.1 liters;
  • type of mechanism. one.cylinder, four.stroke, upper location of the valves;
  • The cylinder is made of cast.iron steel;
  • Equipment weight. 15.5 kg;
  • type of carburetor. float;
  • type of regulator. mechanical;
  • Due to the innovative muffler LO-Tone, the unit does not create much noise;
  • A special type of Magnetron electronic ignition allows you to quickly start the device without failures.

Closing a carburetor

To adjust the level, the carburetor on the uniform tractor is previously completely cleaned of dirt. Before starting work, fuel from the gas tank is drained. To do this, unscrew the drainage plug or remove the supply hose. Gasoline is drained in a clean canister or plastic container. Before the reverse pouring, it is advisable to pass the combustible liquid through the filter. After the devastation of the fuel tank, the supply hose is dismantled, it is dried and blown with compressed air.

Du is fixed directly on the head of the cylinder block. To remove the metering mechanism, they dismantle an air filter with a supply pipe. Then disconnect the drive of the throttle, unscrew the fasteners, remove the carburetor from the seat. Cleaning DU:

  • Disassemble the hull of the filter-spokeswood. In the lower part, unscrew the fixing bolt, remove the glass. Oleshant deposits are cleaned inside it, everything is carefully wiped and dried.
  • A float chamber is made in the lower part of the case. The main fuel jet is located in its center, which is twisted with a screwdriver. There is a small sleeve under it, which is also extracted. To remove the float with a closing needle, the plugs are removed by the support axis.
  • Carburetor housing (with pre-removed plastic parts) and jackets are placed for a day in acetone or white-spite. Polymer components are washed with clean gasoline, cleaned with a soft brush, then thoroughly dried.
  • Furious details are cleaned of raid with a rag, and dosing holes with a thin needle or wire.
  • The assembly is performed in the reverse order.

The main problems of Briggs Stratton engines

It is known that Briggs Stratton engines have some common problems, such as overheating or smoking, the inability to start, poor motor operation during use. These problems are usually restored by the owner, not specialists.

  • Overheating of the Briggs Stratton engine can occur for a number of reasons. The motor can be contaminated, the solution is to remove dirt and garbage during thorough cleaning. Also in the engine there may be a low level of oil or you need to increase the air-fuel mixture. Replacing loose laying can also prevent further problems with overheating.
  • Repair of a steaming engine largely depends on the color of the smoke. White or blue smoke indicates that oil burns in it, and black smoke indicates that the carburetor needs to adjust. Cleaning or replacing the air filter can also help.
  • If the engine does not start, it may be associated with outdated fuel, dirt and garbage. Fuel replacement and cleaning the carburetor and spark plugs can often eliminate the problem. Otherwise, the case may be in the valves of the engine and the compression system that may require professional repair.

The same.based tractor can perform a very wide front of work, but this requires certain efforts from the owner of this unit. It is not only about replacing the failed parts and components, but also about the timely adjustment of some units of the device.

valves, adjustment, dvig, lawn, mowing

In particular, the correct operation of the engine engine will depend on how correctly and in time the valves are adjusted.

And it doesn’t matter whether it is about the Honda motoblock, or if the same.based Vityaz 8LS tractor and its correct adjustment are considered, we are talking about adjusting the valves on the diesel walk.behind engineer, or the valves are adjusted to the Forte gasoline.

It is advisable to do this after each season, but there are times when such adjustment is required at least twice in this period of work. The main indications for this are an atypical noise in the carburetor, tapping. in general, uncharacteristic sounds during the operation of the walk.behind tractor.

How to Adjust the Valves on a Stihl 4-Mix Trimmer or WeedEater

If this is detected, and if the valve is not kept by the DZ adjustment in the walk.behind tractor, then you need to immediately examine and determine the actions, especially since this procedure is quite simple and completed at home.

Cart to the walk.behind tractor useful device, which can be assembled with your own hands.

Settings of gaps

The actions to set the gaps are as follows:

  • Before the implementation of any action, check the engine: it must be cold;
  • Then disconnect the glass with an oil bath from an air filter and a filter element;
  • Using the key, unscrew four bolts from the protective casing;
  • After these actions, it is necessary to remove the starter and protective casing of the flywheel;
  • Next, the dead point should be fixed on the flywheel. It is necessary that it corresponds to a zero mark;
  • With neat movements, remove the valve lid with a parony gasket, before which you need to unscrew three bolts;
  • It is important to check the gaps. Remember that the input valve is located near the filter, and the output is near the muffler. To check the intervals, you need to insert the probe between the rocker and the valve. If the distance deviates from the permissible, you need to adjust these elements with a uniform or screwdriver;
  • After that, it is necessary to wipe all the connections with a clean rag, completely assemble the structure and turn on the one.axle tractor to check its working condition.

With proper valve adjustment, the engine will work silently, without any jerks and failures.

Using the proposed algorithm of actions, you can correctly adjust the valve on the walk.behind tractor, while ensuring the effective operation of the device!

Step.by.step instructions for different models

Lifan 6.5

Valves adjustment for Lifan 6 Tractor Tractor.5 consists in installing the right gap under the valves. The sequence of actions will be as follows:

  • Remove the casing to get to the flywheel.
  • Remove the valve cover. There are two valves under it. inlet and graduation.
  • To check the gap of the intake valve, you will need a 0.15 mm probe, for graduation. 0.2 mm. With proper adjustment, the probe should pass under the valve quite freely.
  • For adjustment, weaken the nuts of the mounts using the key. We insert the probe between the valve and the piston so that it does not slip, but was quite tight in this position. We wrap the nut.
  • Put in place the valve lid and the casing of the flywheel.

Adjustment of devices Neva MB 2, Zirka 105

The process of adjusting the valves on the Neva MB 2 motor block and a similar motor block Zirka 105:

  • Let the engine work, and then cool a little.
  • Remove the casing.
  • Remove the valve cover and get to those flywheels that under it.
  • We unscrew the locknut.
  • The blade that we insert into the gap should take place very freely between the piston and the valve.
  • We screw the entire system back.

How to adjust the valve of the zip motoblock valve correctly

What is the procedure for adjusting the valves on the popular zip motoblock:

  • Open the flywheel.
  • We develop the valve cover on the private arrow.
  • The probe check the gap in the same way as described above.
  • We make a key between the nuts and weaken them a little.
  • Close the system and conduct testing.

How to configure the AGRO motornote

Valve adjustment on the AGRO motornote is carried out as follows:

valves, adjustment, dvig, lawn, mowing
  • We warm up the engine, after which we give it for some time to cool.
  • Remove the oil filter oil bath.
  • Next, you need to unscrew the casing of the flywheel fastened on 6 bolts.
  • On the flywheel there are marks. 0 (upper dead point), 5, 10 and 20 (fuel injection). We compare the dead point of the flywheel with a mark located on the cylinder so that they are opposite each other.
  • Next, remove the valve cover.
  • Two valves are located under it. We relax the locknut, then insert a razor blade under the valve. The blade should be free between the piston and the valve.
  • Having achieved this, we tighten the nut back. Then we return the valve lid and the casing of the flywheel to its place.

It is worth noting that identical actions for adjustment are carried out to adjust valves on the Patriot motor block. Agros unoic tractor and valve adjustment also correlates with the MB 1 walk.behind tractor 1.

So if necessary, you can use the identical scheme.

Cascade

Valves adjustment on the motor block cascade:

  • Remove the casing from the flywheel.
  • Remove the valve cover.
  • Turn the flywheel until the inlet valve is pushed. Accordingly, the outlet valve will be squeezed.
  • Next, you need to achieve the correct clearance for each of the valves. According to the instructions, for the inlet, this parameter is 0.15 mm, and for graduation. 0.20 mm.
  • We check with the probe the existing gap between the valve and the piston. If the probe slips strongly, or it does not pass between them at all, then we will need adjustment. If there is no probe, then you can use a razor blade, the thickness of which is 0.1 mm.
  • For adjustment, relax the mounting nut, then insert the probe into the gap under the valve. Its optimal position will be a rather dense walk between the piston and the valve, without slipping.
  • If everything worked out, we twist the nuts back, after which we put the valve cover and the casing in place.

The adjustment of the valves on the Urals motornote should also be approached precisely on the basis of the above instructions.

The scheme of work is arranged in an identical way, so you can use one action algorithm, exactly for adjusting valves on a popular centobobe Centaur.

Where to start diagnostics motorcycles

If the lawn mower does not start or immediately stalls after starting, it is necessary to sequentially check all the main nodes and assemblies. The test algorithm is as follows:

  • Fuel tank (fuel quality);
  • Candle and candle channel;
  • Air filter;
  • Fuel filter;
  • Breather;
  • Graduation channel.

These nodes are most often source of basic problems, which can be eliminated after a thorough inspection.

Check the fuel mixture

Before starting the engine of a gasoline braid for grass, check the presence, and the quality of the fuel mixture. Do not save, do not greedy and “do not smarter” in this matter. Repair or replacement of the piston group will cost you too much (sometimes up to 70% of the cost of a new tool). Prepare the oil fuel mixture strictly according to the instructions. Calculate its number from real needs. Excess gasoline left after work loses its qualities over time.

We diagnose a candle and candle canal

If the quality of the fuel mixture is not in doubt, and the lawn mower stalls when starting, then a flooded candle may be the reason. Here, a regular candle key is suitable for repair (every motorist has probably has a spare candle.

  • We twist the candle and wipe;
  • We thoroughly dry it (you should not bake it);
  • Excess fuel in the chamber we drain through the candle hole and dry it;
  • We clean the old candle from the carbon on a sugar or a ladies’ file;
  • We set a gap with a distance of 1 mm (you can check with any coin);
  • We return everything to place and try to start a trimmer for the grass.

Dry the channel at least 30-40 minutes. Otherwise, there is a risk of re.pour a new candle.

If the working candle is working, the nest, where it is located completely dry, and the lawn mower does not want to start, lubricate the threaded connection with gasoline. It should be slightly moisturized. No matter what wonderful spark gives out a candle, there is simply nothing to light up in a dry chamber.

If the trimmer engine for grass still does not start, such a cause as the lack of spark due to weak contact between candles and a high-voltage wire should be excluded. If the connection is of high quality, and there are no sparks, most likely, you have “flew” the ignition unit. Here you can’t do without a master, t. to. The part is not repaired, but sold by a whole knot.

Diagnosis of the filters of the lawn mower

Another reason why the gasoline braid for grass stalls is an air filter. To exclude it, try to remove the filter and start a trimmer for grass without it. If it turns out, then you will have to change the air filter to a new one, or at least blow and carefully clean the old.

You can’t start a gasoline trimmer for grass due to contamination of the fuel filter. This is the next stage of our algorithm. Here we check the state of the filter element and, if necessary, change it with the new. When replacing, try not to leave a suction pipe without a filter, this is prohibited by any operating instructions. Rush can turn into the repair of the piston group of the engine.

Removing the handle

Direct disassembly of the STIHL 180, begins with the removal of the handle, which is attached to the chainsaw housing using three rubber shock absorbers. To remove, it is necessary to remove the plastic plugs from the inner cavity of shock absorbers, after which with the help of a powerful screwdriver, squeeze the upper shock absorber first, then the one which is closer to the posterior handle.

A gas trigger is installed in the back of the handle, which is connected to the carburetor through the wire traction in order to disconnect the thrust from the gas trigger, it is necessary to unwind two screws and disassemble the handle.

When the handle remains on one shock absorber, it is necessary to turn the chainsaw housing from the inside of the handle and breaking to the side, remove the case from the last elastic band.

The most common problems

Here are the most common malfunctions:

  • the engine does not start;
  • The motor stalls arbitrarily;
  • The engine does not gain momentum or does not hold them;
  • Immediately after the start of the mowing, the engine speed falls and it stalls or works with interruptions;
  • smokes strongly;
  • It goes badly;
  • does not stop even after the operator released the wheel drive lever;
  • shakes hard;
  • Poorly cut the grass.

The engine does not start

There are quite a lot of reasons why the motor does not start:

  • empty fuel tank;
  • a air filter is clogged;
  • a muffler is clogged;
  • The ignition switch is installed in the wrong position or faulty;
  • The air damper control lever is in the wrong position;
  • faulty candle;
  • broken or clogged carburetor.

Primary inspection

To establish the real cause of this defect, you must first conduct a full external inspection and make sure that the openings of the air filter or muffler are not clogged, there is gasoline in the tank, and the throttle control lever and the ignition switch are in the correct position.

If everything is in order with this, then it is necessary to carry out pre.launch work, including cleaning air or fuel filters, described in detail in the instructions for the operation of the mower, and then try to start again.

After making sure that the motor still does not start, the mowing is placed on the table and proceed to a more detailed search for the reasons.

First, the spark plug is twisted and tightly plug the candle hole with your finger, then smoothly, but quickly and strongly pulled the hand starter cable or pressed on the electric launch button.

The moving piston should create sufficient air pressure so that it pushes the finger and goes outside. If this does not happen, then the motor needs serious repairs, which is difficult to make at home, so it is better to take the mower to a specialized workshop.

After all, the reason that the piston does not move after the starter’s cable or rotating the shaft of an electric starter may be:

  • Damage to the starter, because of which he does not transmit the energy of rotation to the engine shaft;
  • The cut off the flywheel that connects the flywheel and the starter with the engine, and also provides the correct ignition angle.

To eliminate both malfunctions, not only tools, but also skill are needed, so those who do not have the skill of repairing any engines are better not to try to eliminate such problems on their own.

Further check

If the piston moves, then you must first check the fuel supply, for which the candle is thoroughly wiped with a dry clean rag, then screw it into place, and the regulator of the position by the air damper is placed in the “OFF” position, as during the start of the engine.

After that, the fuel is pumped up (if the engine design provides) and twitch the hand starter cable several times or pressed on the electric starter button and hold it for 1-3 minutes.

Then, the lever of the air damper is transferring to the “ON” position and the candle is unscrewed, which is carefully examined.

Wet contacts indicate that gasoline enters the engine and the problem of ignition, and dry contacts say:

In both cases, knowledge and equipment are necessary for proper diagnosis and repair, therefore, it is better to take the device to repair the apparatus to a specialized workshop.

If the fuel comes, then it is necessary to check the external condition of the ignition coil and the high.voltage wire. If they have cracks or poor contact as between the wire and the coil, so at the place of connection of the wire with the candle tip, they must be replaced.

If everything is fine, then you need to check the spark, for which you can use both a deliberately serviceable candle and a bolt suitable in diameter, which is inserted instead of a candle in a high.voltage wire.

The operations described below, if they are performed with errors, can damage the ignition coil, so if you are not sure that you can do everything right, then it’s better not to take risks and entrust such a check to professionals.

The candle is leaned with threads against the ribs of the engine cooling shirt, and the bolt is placed so that it does not come into contact with the mowing case or its engine, and the distance from it to the cooling shirt was 1-2 mm.

After that, disconnect any wire going to the ignition switch, then pull the lever of the manual starter or press the electric button and see if the spark will appear.

If there is no spark, then the device does not start for one of the reasons:

For the repair of these damage, skills and equipment are needed, so those who do not have them are better to trust professionals. If there is a spark, then the problem is in the spark plug, so after replacing it will work.

The motor stalls arbitrarily

The most frequent reasons why the engine stalls during operation are:

  • Dirty air filter;
  • Dirty fuel filter (only for models with a fuel filter);
  • faulty ignition switch (does not completely open the ignition circuit);
  • damaged insulation of the ignition shutdown wires;
  • faulty air damper drive;
  • the tightness of the ignition coil is broken or its winding is broken.

The primary inspection is performed in the same way as described in the previous section. If everything is fine outwardly, then carefully examine and feel all the wires suitable for the switch that blocks the operation of the ignition system, is possible somewhere damaged and when contacting the naked metal of the case, there is a short circuit that extinguishes the spark.

A gasoline lawn mower is a complex motorized equipment that needs proper timely maintenance and periodic repair.

Now you know what malfunctions can independently eliminate most of the owners of gasoline lawners and how to do it, and in which cases it is better to contact the workshop.

Briggsstratton 750 Series

This engine model is equipped with a general.purpose horizontal shaft. The manufacturer guarantees high efficiency, as well as reliability, strength, durability due to the use of high.quality raw materials. The device copes with large loads without the need to “go for a break”.

The engine for motoblocks is endowed with an air filter, to which a replaced cartridge is attached, and it, in turn, is equipped with a foaming foam (it is also called a double filter element). Such a detail acts as protection against dust, sand, stones that come with air. After all, clogging of the engine is a common cause of damage to the device.

Cast iron is used to make the main parts. This material significantly increases the strength, performance of the carburetor. Thus, the risk of rapid wear of the walk.behind tract is reduced. Plus everything improves oil control necessary for full activity.

In this model, the valves are located on top. First of all, this affects the increase in the life of the device, and also positively affects fuel saving. Other spare parts affect the same indicators. bearings. In the XR750 model they are double ball.

The mechanical type of regulator allows you to change the speed of rotation. so, it will turn out to develop power to maximum indicators, which is necessary with intensive work.

  • The highest torque is 10.17 nm;
  • working volume. 163 cubic meters. cm;
  • the capacity of the fuel tank is 3.1 liters;
  • type of mechanism. one.cylinder, four.stroke, upper location of the valves;
  • The cylinder is made of cast.iron steel;
  • Equipment weight. 15.5 kg;
  • type of carburetor. float;
  • type of regulator. mechanical;
  • Due to the innovative muffler LO-Tone, the unit does not create much noise;
  • A special type of Magnetron electronic ignition allows you to quickly start the device without failures.

Briggsstratton 650 (190CC)

Easy enough to operate, maintenance. this engine is installed in large lawn mowers. The model is highly performance even with intense loads. A feature of 650 EXI Series. regular oil change is not required, the main thing is to maintain a certain level.

The design is represented by a single.cylinder, four.stroke carburetor equipped with air cooling, valves in the upper part of the part (OHV). It is the Just Checkadd system that allows you not to regularly replace the oil. just add the right amount after each check. Now, when starting, you do not need to pump fuel into the carburetor, the ReadyStart system greatly simplifies the engine on.

STIHL FS SERIES 4MIX TRIMMER / WEED EATER REPAIR / HOW TO CORRECTLY ADJUST THE VALVES

Another advantage of engines for lawn mowers is the launch guarantee S2, which is provided to each buyer of the device. It involves free repairs if the unit does not start from the first attempts.

  • 9, 15 Nm. maximum torque;
  • 163 cubic meters. cm. the total volume of work;
  • 1 liter. the size of the fuel tank;
  • carburetor with the upper location of the valves;
  • The total mass of the device is 8.5 kg;
  • The cylinder is made of high.strength aluminum;
  • Super Lo-Tone-this muffler model simplifies work, reduces noise, improves sound quality;
  • MOW N »STOW. the function of saving storage locations up to 70%;
  • reliable, productive carburetor of the float type.

Necessary tools and materials

Different models require a different tool. Some adjusting screws have slots under a flat screwdriver. On others there is a hexagon under the unit key.

The keys for the candle and valve lids are also required.

The probe is required. Some recommend using arrogant calibers. For example, a blade, which is believed to have a thickness of 0.1 mm. But not the fact that it will do, t.to. other dimensions (0.15 mm, 0, 20 mm) already set without probe. Two blades folded together due to a loose fit to each other will give not 0.2 mm, but an unpredictable value.

Basic errors when adjusting

You can not check the gaps on heat and even more hot engine. Due to the thermal expansion of metals at this time, the gaps may not be at all, and when cooling they will appear. To stop such fluctuations, in many respects, gaps on simple engines are provided.

After adjustment and tightening, the gaps were not checked. During tightening, there may be a change in the gap. Therefore, the probe check after completion is required.

The tact and position of the piston when adjusting were incorrectly selected. When searching for the third.the.way HMT described above, the flywheel should be rotated in the direction in which it rotates when operating the engine.

On 4 stroke ICE Piston rises to the VMT twice. In order not to confuse, you must follow the above.described scheme for installing the piston position for adjustment.

Additionally, inspection of the position of the exhaust valve for VMT will help to orientate:

  • With the position required for adjustment, 3 strokes: both valves are closed, the piston in the VMT;
  • with an intermediate. piston in the VMT, but the inlet valve begins to open. At the same time, there is no gap on it at all. It is impossible to adjust the gaps in this position.

Step.by.step settings instructions on any walk.behind

Valves adjustment on Neva, Lifan, Patriot, cascade and all others with a single cylinder 4. a stact engine is carried out according to one general scheme. On the walk.behind tract of one brand, for example, Neva, Subaru, Honda, Yamaha, Lifan and others can stand. The same engines can be found on motoblocks and other brands.

How to independently adjust valves at home, using improvised means is clearly shown in

In addition to the above, today engines from the following manufacturers are widespread on different motor blocks and cultivators:

Weima diesel engines (PRC) are also found. Less commonly, but there is a gasoline engine from the USA Briggs Stratton. There are also engines of pure production.

Adjustment scheme on the Neva MB2 motor block.

Step.by.step adjustment procedure on all models

The engine of the motor.cultivator should be cold. On gasoline engines, the spark plug is removed. The rest of the adjustment on diesel and gasoline engines is the same.

  • A cover that closes the valve is unscrewed.
  • The slow rotation of the flywheel in the working direction is established by the 3rd tact VMT (compression tact, the location order is described above).
  • Adjustment is carried out alternately with each valve, starting with any.
  • The probe checks the existing gap. Its value is estimated. increased, reduced or normal. In the latter case, the adjustment is not required.
  • Robbed a counter.gamer adjusting screw.
  • If the probe of the desired thickness is not included in the gap, the screw is unscrewed.
  • The probe is inserted into the gap, the screw is twisted until the probe presses slightly.
  • The countrogayka is tightened. In this case, the rotation of the adjusting screw is no longer allowed.
  • The probe is extracted.
  • The operation is repeated with the second valve in the same order.
  • The flywheel is scrolling in the working direction and again returns to the installation position (VMT 3 of its tact).
  • The gaps are checked again, the probe with slight effort should go into the gaps. If the setting has strayed, this could be when tightening, it will be adjusted.

Class tuning requires high accuracy, therefore, special care and scrupulousness will not be superfluous here. When knocking under the valve lid appears, the adjustment should be carried out immediately, since the problem will increase and there may be more serious breakdowns. If you still have any questions about how to adjust the valve on a walk-behind tractor, then ask us, for this, use the form of Комментарии и мнения владельцев located immediately under the article.