TROUBLESHOOTING 153
Faults Possible cause Action
Engine turns but does not start. Switch for throttle lever faulty – Check the wiring harness. (visual check)
– Check the electrical system.
Throttle valve sensor incorrectly set or
faulty
–
Check the throttle position sensor. x
Blown fuse – Change the fuses of individual power consumers.
( p. 116)
The engine cannot be cranked (electric
starter).
Operating error – Follow the instructions on starting the engine.
( p. 32)
Battery discharged –
Recharge the battery. x ( p. 113)
–
Check the charging voltage. x
–
Check the quiescent current. x
–
Check the alternator. x
Blown fuse – Change the main fuse. ( p. 115)
Engine does not speed up. Carburetor running over because float
needle dirty or worn
–
Check/adjust the carburetor components. x
Loose carburetor jets –
Check/adjust the carburetor components. x
Engine has no idle. Idling jet blocked –
Check/adjust the carburetor components. x
Adjusting screws on carburetor dis-
torted
–
Carburetor - adjust the idle speed. x
( p. 140)
Spark plug defective – Change spark plug.
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