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8
Fault
Possible cause
Remedy
Engine stutters at high
revs., engine often stops
in neutral
Ignition gap of the spark plug is too
small.
Neutral mixture is not adjusted correct-
ly.
Ignition gap too large, spark plug defec-
tive.
Carburettor is not adjusted correctly.
Air filter is dirty.
Adjust or replace the spark plug.
Have the carburettors adjusted.
Adjust or replace the spark plug.
Have the carburettor adjusted by a work-
shop.
Clean the air filter.
Engine works irregular-
ly
Regulator linkage is dirty or sticks.
Clean the regulator linkage.
Engine doesn’t switch
off in the stop position
Engine stop cable is defective, no earth.
Check and renew cable and plug connect-
or.
Engine has too little
power
Cylinder head is loose or head gasket is
damaged – too little compression
Have the engine checked in the workshop.
Clutch doesn't disen-
gage,
clutch slips
Clutch lever is incorrectly adjusted
Clutch lining is worn.
Adjust clutch play.
Replace the clutch disk
Excess vibration
Fixing screws are loose.
Tighten fixing screws.