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Faults
Engine turns but does not start
Engine has no idle speed
Engine does not speed up
Engine has too little power
Possible cause
Operating error
Motorcycle was out of use for
a long time and there is old
fuel in the float chamber
Fuel feed interrupted
Spark plug oily or wet
Plug gap of spark plug too
wide
Fault in ignition system
Short circuit cable in wiring
harness frayed, kill switch
defective
The connector or ignition coil
is loose or oxidized
Water in carburetor or jets
blocked
Idling jet blocked
Adjusting screws on carbure-
tor distorted
Spark plug defective
Ignition system defective
Carburetor running over
because float needle dirty or
worn
Loose carburetor jets
Fault in ignition system
Fuel feed interrupted
Air filter very dirty
Exhaust system leaky,
deformed or too little glass
fiber yarn filling in main
silencer
TROUBLESHOOTING 19
Action
–
Carry out the start procedure.
(
p. 23)
–
Empty the carburetor float cham-
ber.
(
p. 98)
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/set the carburetor compo-
nents.
–
Clean and dry the spark plug, or
change it if necessary.
–
Adjust plug gap.
Guideline
Spark plug electrode gap
0.60 mm (0.0236 in)
–
Check the ignition system.
–
Adjust the ignition.
–
Check the kill switch.
–
Clean the plug-in connection and treat
it with contact spray.
–
Check/set the carburetor compo-
nents.
–
Check/set the carburetor compo-
nents.
–
Carburetor – adjust the idle speed.
(
p. 97)
–
Change spark plug.
–
Check the ignition coil.
–
Check the spark plug connector.
–
Check/set the carburetor compo-
nents.
–
Check/set the carburetor compo-
nents.
–
Check the ignition system.
–
Adjust the ignition.
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/set the carburetor compo-
nents.
–
Clean the air filter and air filter box.
(
p. 57)
–
Check exhaust system for damage.
–
Change the glass fiber yarn filling of
the main silencer.
(
p. 59)
107
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