Kolpin Powersports 180??, Service Manual

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77
FIG-20. Trouble shooting
ENGINE RUNS ROUGH (ESPECIALLY AT LOW SPEED AND IDLING)
Check
、
Adjust
Trouble Condition Trouble Cause
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Check the ignition
timing
Check carburetor air
Adjust screw
Normal Not normal
Test compression
pressure
Check carburetor
gasket seal
Adjust well
Adjust no good
Pressure normal Pressure not enough
or without pressure
Tight seal
Air leak
1
. C.D.I no good
2.
Generator no good
Remove the spark
plug and install the
spark plug cap to
contact with engine.
Check for spark
Spark plug with
spark
Spark plug without
spark
1.C.D.I no good
2. Generator
1. Too rich (turn screw out)
1. Carburetor clamp not tight
1. Spark plug fouled
2.
T
oo lean (turn screw in)
2. C.D.I no good
2. Intake manifold gasket no good
3. Carburetor o-ring broken
3. Generator no
goodgood
4. High tension coil break
5. Spark plug wire broken
6. Main switch no good