(1) Check the fuel system
1. Too much gasoline enters the engine combustion chamber (stop for a few minutes and try to restart or remove the spark plug and wipe it clean)
2. Fuel tank There is not enough fuel in the tank, (add fuel to the fuel tank)
3. The fuel filter is clogged, (clean the filter)
4. The carburetor is clogged, (clean the carburetor)
5. Air filter is dirty (replace enrichment pump, enrichment pump tube and filter element)
6. The oil pipe is bent and there is no oil (adjust the length and direction)
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7. The fuel type is incorrect or there is water in the fuel (replace with new fuel)< /p>
(2) Ignition system
1. Spark plug failure (clean carbon deposits from spark plug) and adjust gapof the spark plug)
2. the time is incorrect (adjust the gap between the valve and the ignition coil too large or too small)
3. The extinguishing switch is defective (replace the switch)
< p>4. sufficient (replace the steering wheel)5. Igniter fails (replace igniter)
6. The oil alarm system will trigger if the engine oil is not filled or the oil quantity is not filled. is insufficient (add if necessary)
7. Extinguishing wire grounding (adjustment)
(3) Mechanical failure:
1. adjusted, exhaust valve)
2. Cylinder seal is damaged (replace cylinder)
3. The valve seal is not good (repair or replace the valve)
4. Cylinder, pistons and piston rings are worn (replace cylinder, piston and piston rings)
5. The semi-circular flywheel key is cut and the ignition time is abnormal (replaceder the crankshaft and flywheel)