The reason why a motorcycle stalls automatically is due to high engine temperature and circuit failure.
Excessive temperature and poor lubrication will kill the piston and cylinder, causing flameout. The sign before stalling is that the power gradually decreases at first and then stops abruptly.
Automatic shutdown caused by sudden power failure in the circuit, the motor will have no abnormality before sudden shutdown. The cause of sudden motor power failure usually occurs on the wiring, such as loose connectors, broken wires, short circuits, etc.
For example, if there is a problem with the ignition coil, the ignition coil connector may be loose and the ignition may be broken.
Solutions to high engine temperature
First check if there is lubricating oil in the crankcase. If there is little or no lubricating oil, check the oil pan or drain plug for oil leaks, find the problem, correct it, then add sufficient lubricating oil .
If it is not an oil leakage problem, check whether the lubricating oil is excessively worn and add or replace the lubricating oil in time.
Solutions to circuit faults
Check each connector, remove oil stains, increase the clamping force of the connector and plug and increase the contact force. , to ensure stable contact.
If the trigger coil is defective and the wire joint of the trigger coil is loose, the strength of the wire welding should be strengthened to completely eliminate the hidden danger of false welding.
Motorcycle Repair and Maintenance Tips:
How to Deal with Cylinder Extractions
strong>
Add some epoxy Gently apply resin glue along the scratches on the cylinder tube to fill it. Leave it for about 20 minutes, then sprinkle it with a small layer of talcum powder. Press firmly, then use a piece of cardboard to scrape it into a matching arc. the cylinder tube. Leave it for 4 to 6 hours.
This method is only suitable for minor scratches. If the situation is serious, replace the cylinder with a new one.
Quickly clean the carbon deposits in the cylinder
Unscrew the spark plug, spray some carburetor cleaners into the cylinder from the spark hole the spark plug, then tighten. the spark plug and open it. Turn the ignition switch and pedal until the engine runs for a few minutes.
This situation is only suitable for loose carbon deposits. If they are old and gray, forget them. Light carbon depositscan sometimes be resolved by driving on a straight road at high speed.
How to remove the cylinder head skillfully
When you encounter a motorcycle where the cylinder head is too tight, first unscrew the fixing screw, then insert it it into the cylinder from the spark plug hole. Drop a few drops of gasoline, reinstall the spark plug, then tie the cylinder block and cylinder head tightly with a rope. Turn on the ignition switch and slam the starter lever when the engine knocks. , you can easily remove the cylinder head.