CHILL 125 cc. SERVICE MANUAL AND EFI DIAGNOSTIC
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4
If the issue only occurs in winter, check the oil and gear box oil.
Yes
Change the oil
No
Next
5
Check whether the engine rotation resistance is too big or not.
Yes
Check the engine
No
Help
ITEM
OPERATION
RESULT
NEXT STEP
1
Check whether the fuel pump pressure is about 250kPa at idle.
Yes
Next
No
Check the pump.
2
Check whether the ‘RMP’ data on the diagnostic tool shows the real engine RPM.
Yes
Next
No
Check the crank sensor.
3
Pull out the spark plug, check whether the spark over is normal.
Yes
Next
No
Check the ignition system
4
Check whether the cylinder pressure is normal.
Yes
Engine is good.
No
Check the engine