TROUBLESHOOTING
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Electrical system
1、Faulty ignition plug
2、The performace of speed sensor become poor
3、Faulty ignition coil
Valve train Improperly adjusted valve clearance
Air filter Clogged air filter element
POOR MEDIUM AND HIGH-SPEED PERFORMANCE
POOR MEDIUM AND HIGH-SPEED PERFORMANCE
EFI system
1、 Broken ECU
2、 The performance of speed signal sensor become poor
3、 The main nozzle clog or loose
4、 Spoiled or pollute oil
5、 Broken inlet pressure / temperature sensor
6、 Air throttle position sensor loose
7、 For two cylinder engine, if the plugs of fuel injector or oxygen
sensor plug in wrong cylinder, the fuel trim will happen mistakes.
After a thin combustion, muffler will appear abnormal high
temperature and then burn down the covering parts
Air filter Clogged air filter element
Muffler Clogged muffler
Set out
The reverse signal error trigger
FAULTY GEAR SHIFTING
SHIFT LEVER DOES NOT MOVE
Shift drum, shift forks
1、Groove jammed with impurities
2、Seized shift fork
3、Bent shift fork guide bar
4、
Broken shift guide
Transmission
1、Seized transmission gear
2、Incorrectly assembled transmission
Shift guide
1、Broken shift guide mechanism
2、Broken shift flexible shaft
JUMPS OUT OF GEAR
Shift forks Worn shift fork
Shift drum
1、Improper thrust play
2、Worn shift drum groove
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