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How To Repair When The Engine Doesn’t Start Up Or It Has Start-up Difficultly?

Phenomenon of Manifestation

When starting up with the starting switch, the starter has no response or only sounds the actuation, and the engine does not work.

Diagnosis

1、The safety starting switch is damaged or unconnected;
2、the starting switch and the starting relay are damaged;
3、the fuse is broken after burning;
4、the circuit connection is not well;
5、the storage battery has no electricity;
6、the starter is damaged.

Troubleshooting

1、 Use the screw driver to short circuit the linking pillar of the storage batter and the linking pillar of the electromagnetic switch. If the starter works well, it means the starter and its power part are normal. The malfunctionals are always caused by starting switch, the safe starting switch, the starting relay, burnout of fuse or bad connection of the circuit;
2、If the starter does not rotate after short circuit, open the head lamp to see the lightness of the light. If the lightness is high, it means they started is damaged; if the lightness is low, check whether the connection between the storage battery and the starter is well and whether the storage battery has any electricity.
Phenomenon of Manifestation
When starting up, the starter is running and weak, with low rotation speed or just runs half a circle.
Diagnosis
1、he storage battery has insufficient electricity or the connection of the power circuit is not well;
2、The coil inside the starter shorts out or the connections of the carbon brush are not well;
3、 the load is not immediately unloaded when starting up, namely the power output device and the handle of the transmission are not at the neutral position.
Troubleshooting
1、Turn on the head lamp to observe the lightness. If the lightness is high, it means the starter is damaged; if the lightness is low, check whether the connection between the storage battery and the starter is well and whether the storage battery has any electricity;
2、Before starting up, check whether the gearshift of the gearbox and power output device is at neutral position.

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