What happened to the boring motorcycle engine?

There are many reasons for motorcycle engine congestion, such as small engine displacement, weak natural power, air filter, carburetor and exhaust pipe blockage, insufficient cylinder pressure, poor intake and exhaust, clutch slipping, poor gasoline quality, high-voltage electrical failure and incorrect driving methods, which may all lead to motorcycle engine weakness. Because there are many possibilities and parts involved, it is necessary to check these parts and possibilities separately, find out the specific causes of the failure and repair them as appropriate.

Check whether the air filter, carburetor or electric fuel injector and exhaust pipe are blocked, and whether the gasoline quality and oil supply are normal.

Check whether the air filter element is soaked or blocked, whether the carburetor or electric nozzle is blocked, clean or replace the air filter element, and clean the carburetor or throttle nozzle. If it is a carburetor, check whether the mixing ratio, oil level, oil needle and valve of the carburetor are improperly debugged and used, and whether the carburetor itself is of poor quality or seriously aging. Check whether the gasoline in the fuel tank is sufficient, whether the gasoline quality is not good, and whether there is a problem with the gasoline pump and the fuel tank switch, resulting in poor oil supply.

Check whether the cylinder pressure is insufficient, whether the valve timing is wrong, whether the high pressure is abnormal and whether the clutch slips.

Check whether the cylinder block, piston and piston ring are worn to cause insufficient cylinder pressure, whether the valve timing/ignition timing is wrong, whether the camshaft and valve rocker arm are worn to cause insufficient intake and exhaust, whether the valve clearance is too small or not tightly closed, whether the high voltage is broken or weak, whether the clutch is worn and skidded, or whether the clutch is skidded due to oil problems. In addition, it is also necessary to confirm whether the power is weak due to the small displacement of the engine itself, and whether there are driving mode problems, such as insufficient power due to improper use of gears.