Trimmer Starts And Stalls

Petrol trimmer stalls at idle speed

Often, when the engine speed decreases, the lawn mower engine stalls and does not idle when restarted. The main reasons for the occurrence of such a breakdown include contamination or misalignment of the carburetor, as well as clogging of the air filter.

Trimmer Starts And Stalls

The petrol trimmer stalls when idling

If the optimal settings of the carburetor are violated, it is necessary to clean it and re-adjust it. Clogged trimmer air filter can be dealt with by soaking it in a solution with common household detergent for several hours. If self-cleaning did not help to cope with the blockage, then it is better to purchase a new filter element in accordance with the instruction manual.

After carrying out events, the user will not face a situation for a long time when the trimmer stalls at idle and functions only when gas is supplied.

Trimmer stalls: causes and troubleshooting

The lawn mower is a mobile, high-performance tool for beautifying home gardens and surrounding areas. With prolonged use, due to wear of parts or manufacturing defects, malfunctions occur, which lead to the trimmer stalling or not starting. Since this tool is a rather complex mechanism, there may be several reasons why the lawn mower stalls.

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Why does the trimmer stall

There are two main ways to troubleshoot problems: transferring the braid to a specialized center or solving the issue with your own hands. The first option is suitable for those who are ready to pay a “tidy” sum to restore the unit’s working capacity, and the second one for those who have basic locksmith skills and can independently figure out the causes of breakdowns and ways to eliminate them.

Currently, it is customary to classify breakdowns for which the lawn mower stalls into the following categories:

  • Mechanical damage to the internal combustion engine crankcase, malfunctions of the cylinder-piston group (CPG);
  • Breakdowns associated with the supply of the fuel mixture (air filter, carburetor);
  • Malfunctions due to damaged tubes, hoses, cables or ignition circuit.

The reason why the trimmer starts and stalls

Lawn mower. On hot it stalls. Probable cause and remedy

Lawn mower stalls at high engine speeds

During operation, a situation arises when, when you press the fuel mixture supply button, the unit turns not increase, but decrease. A malfunction of this nature can be caused by:

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Fuel hoses for lawn mowers with filter

  • Etching atmospheric air into the combustion chamber;
  • Problems with the circulation of the fuel mixture;
  • Clogging of the breather in the fuel tank cap (cleaning the hole with a fine sewing needle);
  • Incorrect carburetor adjustment.

When air is leaking during the operation of the internal combustion engine, it is necessary to check the tightness of the connection of the pipes and the integrity of the gaskets in the CPG. The problem with the circulation of the fuel mixture can be solved by removing blockages in the fuel pipes leading to the carburetor. If a vacuum occurs in the tank and the fuel mixture does not flow to the carburetor, it is enough to clean the breather with a thin needle and blow it with air.

After starting the engine at once stalls? Why is this happening

Another common prerequisite for which it is required not to start trimmer, there is a blockage in the filter area. To confirm the hypothesis, it is enough to dismantle the indicated block and test the start-up of the unit without it. If the trimmer engine has started, most likely, you will have to create a change of the air filter, or at least perform a painstaking purge of the old one. If there is abundant contamination of the filter element, use the latest mesh. When resorting to similar actions, it is not recommended to leave the absorbing tube completely without a filter. After all, haste in our version leads to the need to repair the entire piston group of the engine unit.

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Often, the engine of branded trim models stalls when the breather is clogged. The main task of the designated component is to equalize the pressure in the fuel tank. For which the design of contamination of the unit is intended, a vacuum appears here, which significantly complicates the supply of fuel. Removing the malfunction allows cleaning the breather with an ordinary sewing needle.

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