Internal combustion engine problems.
The reasons for this may be the following:
Lack of elements necessary for engine operation - fuel, oil, uncontaminated air filter. The presence of these components is the key to good operation of the gas generator; in their absence, a protective mechanism is triggered and the device stalls.
There is no ignition spark. You can fix the problem as follows: using a special key, unscrew the candle, then, using sandpaper and an iron brush, clean off the carbon deposits that appear when using low-quality fuel due to its incomplete combustion. Then you need to wipe the candle with gasoline or alcohol, let it dry. After that, you should re-check for the presence of an ignition spark and try to start the generator.
Insufficiently adjusted carburetor, the occurrence of soot when the generator is not working at full strength. Additional carburetor adjustment will help solve the problem.
Other serious damage to the generator.
Problems in the operation of an electric generator usually arise from a lack of voltage, which arises for a number of reasons. This may be a lack of contact, a malfunction of the brushes, burnout of capacitors, PWM units, etc. If voltage surges are observed at constant motor speed indicators, then, most likely, the matter is in a malfunction of the excitation regulators. It is necessary to disassemble the device in order to find out the exact reason for its failure to work.
Difficulty starting the engine usually indicates a malfunction. Finding the cause in a timely manner means preventing its further development and suppressing the negative impact on the operation of the unit.
Often, several interrelated factors act as the cause of a malfunction. In this case, they have to be eliminated in a complex manner.
Most often, the circumstances that prevent the normal start of the engine are:
Poor ignition system. The following options are possible here:
Problems with the spark plug: the distance between the electrodes is too large or too small (it is necessary to place the electrodes at the optimal distance), insulation failure (replacing the spark plug with a new one will help), the formation of strong carbon deposits (the spark plug must be thoroughly cleaned);
Problems with the ignition coil: insulation failure or winding rupture (replacement is required), incorrect connection of circuit elements or interruptions in its operation (if it is impossible to eliminate the malfunction of the microcircuit, it must be replaced).
Poor fuel system
Reasons and remedies:
- Lack of fuel in the tank (it is necessary to fill the tank);
- Clogged or pinched fuel hose (requires thorough cleaning or complete replacement of the hose);
- Air trapped in the fuel hose (check the tightness of the connections, tighten if necessary);
- Low quality gasoline or diluted with water (fill with higher quality fuel);
- Problems with the carburetor: breakdown, fuel or debris getting into it. Disassembling and cleaning the carburetor will solve the problem. Also, the reason may be in an incorrectly installed throttle valve, which is solved by carefully adjusting this part.
How to identify the cause of the cultivator breakdown and how to start it yourself?
We list the basic requirements for the care of cultivators and recommendations that will help you keep them in good condition.
A common mistake when using these devices is the fuel left after the end of work. Gasoline, especially if it is of poor quality, will begin to form condensation after a few days and a precipitate will form. This can damage the fuel system. Most of all, in this case, the carburetor suffers, which becomes clogged and does not allow the engine to start. To avoid this, empty the gasoline tank or operate the unit until it runs out.
If you forgot to drain the fuel and sent the cultivator to storage, and at the end of winter you noticed that it would not start, most likely the carburetor is faulty. What to do? It is necessary to drain the remaining gasoline and it is best to replace the rubber tubes. Then fill the tank with fresh fuel. Leave the appliance for a while and then drain off the bulk of the gasoline. Then try starting the equipment. If all else fails, then there are probably problems with the ignition system, which are rather difficult to solve on your own.
If the engine starts, but immediately stalls, check the condition of the spark plug. If it is not dry, it must be replaced or cleaned.
The motor of any garden equipment will not run without oil. Its level must be constantly monitored. It is necessary to change the oil at least once a year, or more often if you use the device regularly.
Perhaps we have listed the main recommendations on how to start a cultivator engine malfunction
It is important to remember that this technique is also characterized by other types of breakdowns. It is often only a professional who can correctly diagnose them and eliminate the cause of their occurrence.
If garden equipment is dear to you, do not hesitate and contact a specialist!
Owners of motoblocks and cultivators sooner or later face a typical problem when their workhorse does not start or does not start, but stalls when the air damper is opened, starts to “shoot” or accelerate. To eliminate the annoying interference, you need to find out the reason for which it occurs, and then carry out proper repairs.
Engine repair
If your motor vehicle malfunctions, you need to look for the source of the breakdown. Repair of a walk-behind tractor engine consists of several points:
- checking candles, electrodes and wires;
- inspection of the carburetor for contamination and fuel intake;
- checking the presence of fuel in the engine tank and inspecting the crane on it.
To begin with, it is better to check the spark plugs: inspect the cleanliness, whether there is carbon deposits on them. Check how tight the end of the wire is - if it has moved a little, then you need to press it tightly. Next, the electrodes are inspected and, if necessary, the gap is adjusted between them. It is also necessary to check all wires for oxidation and insulation. If you notice damaged wires, they should be replaced immediately, otherwise the spark will disappear altogether.
Also, a breakdown in motoblocks with a gasoline engine may also be in the carburetor. To correct possible problems, it is enough to clean it correctly and carefully. To do this, it must be disassembled and, following the manufacturer's instructions, the contamination must be removed. At the end of the procedure, the part is reassembled and reconfigured. Good carburetor performance also depends on the quality of the gasoline you fill. If you are in doubt about the quality of the fuel, you should not risk it - by doing so, you will reduce the likelihood of a quick breakdown of the carburetor. Carburetor repair will not be difficult for an experienced person.
Why does the motoblock engine start badly when hot?
The equipment can stall when heated. This problem is relatively easy to fix. This is often provoked by the fact that an excessive amount of air is supplied to the carburetor. It mixes with gasoline and engine oil, acts as a carburetor cooler. So the temperature of the latter is much lower than the temperature of the engine of the walk-behind tractor.
To fix the problem, you need to follow a certain algorithm.
It is important to start the engine. To do this, follow these steps:
- When starting the engine, the throttle trigger is squeezed halfway;
- Do not regularly press the gas trigger, as this can provoke the engine flooding;
- After starting the engine, you need to thoroughly gas the gas from half of the pressed trigger. After that, you can continue to work.
Simple actions will prevent an increase in the load on a hot engine, the main elements and systems are not subject to increased wear. The listed methods will allow you to eliminate the malfunctions with the unit. They are equally effective for owners of the following brands: Agro, Honda, Neva, Cascade.
Causes of motoblock malfunctions and how to fix them
Fault: the walk-behind tractor stalls under loads
If the walk-behind tractor functions normally for several minutes and then stalls, the reason usually lies in a fuel supply failure or problems in the ignition system.
To find out what is the reason for the malfunction of the walk-behind tractor, you must first check how the fuel is supplied:
- take out the candle and inspect - if it is dry, then there is not enough fuel;
- check if there is enough fuel in the gas tank of the walk-behind tractor;
- make sure that the fuel valve is open - a closed valve can be a simple reason that the walk-behind tractor stalls.
If the problem is a malfunction of the gasoline walk-behind tractor in the ignition system, it must be re-adjusted as follows:
- remove the cover protecting the ignition system;
- turn the engine flywheel until the contacts open in the magneto;
- using a feeler gauge, measure the distance from the anvil to the hammer;
- turn the flywheel to the maximum compression of the piston;
- turn the flywheel again until a knock appears, indicating the operation of the freewheel;
- turn the flywheel in the other direction so that its mark coincides with the mark on the walk-behind tractor;
- set the distance from the break contact to the cam at 0.3 mm;
- fix the cam with a screw that is located above the element;
- install the cover into the walk-behind tractor body.
If the adjustment is made correctly, the walk-behind tractor will not stall during operation.
Fault: the walk-behind tractor works in jerks, intermittently or at reduced power
If a walk-behind tractor on a gasoline or diesel engine began to work intermittently, you must immediately turn off the unit and start troubleshooting.
Continuing to work with a faulty walk-behind tractor means bringing it to more serious breakdowns.
What to do:
- if the engine of a gasoline walk-behind tractor makes return movements, it is necessary to flush the pump and fuel supply hoses and replace the fuel with a better one;
- when the walk-behind tractor works in jerks due to incomplete warming up of the engine, it is necessary to turn off the engine, let it cool completely, start and warm up for ten minutes;
- if the engine power has dropped, it is necessary to check and clean the filter system;
- if the ignition magneto is worn out, replace the part with a new one.
Fault: the walk-behind tractor smokes and stalls, the muffler makes unusual sounds
Possible causes of the malfunction:
- too much engine oil in the fuel;
- the ignition is incorrectly set;
- the fuel in the engine cylinder does not completely burn out.
Troubleshooting methods:
- if there is an excess of oil, drain the fuel, flush the fuel pump and hose system, add new fuel;
- check the correctness of the gap between the electrodes;
- if it becomes obvious that the fuel does not completely burn out, disassemble the piston system, rinse and dry the cylinder, adjust the carburetor correctly.
Fault: the walk-behind tractor starts up, but quickly stalls
Such a malfunction occurs if there are problems with the contacts. What to do:
- clean the candle;
- check the integrity of the wires;
- set the correct distance between the electrodes.
Another reason for the malfunction is that the carburetor is dirty and there is little fuel coming in. Then you need to change the fuel and reduce the amount of oil.
Fault: the walk-behind tractor stalls when heated
This problem occurs due to excess air entering the carburetor. With such a malfunction, the gas trigger should be squeezed halfway. After starting the engine, before starting work, it is necessary to gas well.
If you cannot cope with the malfunctions of the garden walk-behind tractor, the walk-behind tractor stalls, the walk-behind tractor does not start, contact the Alfa-Rost walk-behind tractor repair shop in Rostov-on-Don. We guarantee high-quality repair of gasoline motoblocks using original components that can always be found in our warehouse.
There is no spark on the walk-behind tractor: options for fixing the problem
The most common cause of motoblock malfunctions is failures in the ignition system. The problem may be related to the hood, magneto, spark plug, or high-voltage wire of the technique.
If the spark is missing, you need to do the following:
- Check the ignition system for blockages. Often there is no spark due to water or dirt;
- Check the presence of contact between the main electrode and the candle cap;
- Make sure that all electrodes are intact, there is a gap between them. You can use a special probe. The optimal clearance is 0.8 millimeters;
- Carbon deposits are removed from the insulator and metal parts of the ignition unit;
- The candle is unscrewed and checked for oil stains. Any oil stains and thick carbon deposits must be thoroughly cleaned and the plug allowed to dry. It is also necessary to dry the cylinder of the unit by pulling out the starter cable;
- If after diagnostics the cause of the malfunction is not identified, replacement of the spark plug is required. Such a part has a low price, but it is advisable to give preference to more expensive options. They are distinguished by their reliability and durability.
