CHILL 125 cc. SERVICE MANUAL AND EFI DIAGNOSTIC
41
Difficult Starting.
ITEM
OPERATION
RESULT
NEXT STEP
1
Check whether the fuel pump pressure is about 250kPa at idle.
Yes
Next
No
Check the pump.
2
Pull out the spark plug, check whether the spark over is normal.
Yes
Next
No
Check the ignition system
3
Remove the connector of the engine temperature sensor, and check whether the
engine start well.
Yes
Check the engine temperature sensor
No
Next
4
With a little bigger throttle, check whether the engine starts well.
Yes
Clean the throttle body and bypass channel.
No
Next
5
Pull out the injector, and crank the engine. Check whether the injection is normal.
Yes
Next
No
Clean or change the injector.
6
Pull out the spark plug, check whether it is wet or not
Yes
Dry the plug and combustion chamber.
No
Next
7
Check whether the cylinder pressure is normal or not
Yes
Engine is good
No
Check the engine
