Table of Contents
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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 supply interrupted
Spark plug sooty or wet
Plug gap of spark plug too wide
Fault in ignition system
Short-circuit cable in wiring har-
ness frayed, stop button faulty
The connector or ignition coil is
loose or oxidized
Water in carburetor or jets
blocked
Idling jet blocked
Adjusting screws on the carbu-
retor are in turned to the wrong
position
Spark plug defective
Ignition system defective
The carburetor is flowing over
because the float needle is dirty or
worn
Loose carburetor jets
Fault in ignition system
Fuel supply interrupted
Air filter very dirty
Exhaust system leaky, deformed
or too little glass fiber yarn filling
in main silencer
Ignition system defective
Diaphragm or reed valve housing
damaged
Noticeable wear
Clutch engagement speed too low
or too high
TROUBLESHOOTING 20
Action
–
Carry out start procedure. (
–
Empty the carburetor float chamber.
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/set the carburetor components.
–
Clean and dry the spark plug and spark
plug connector, or change if necessary.
–
Adjust plug gap.
Guideline
Spark plug electrode gap
0.60 mm (0.0236 in)
–
Check the ignition system.
–
Check the stop button.
–
Clean the plug-in connection and treat it
with contact spray.
–
Check/set the carburetor components.
–
Check/set the carburetor components.
–
Carburetor – adjust the idle speed.
(
p. 87)
–
Change spark plug.
–
Check the ignition coil.
–
Check the spark plug connector.
–
Check/set the carburetor components.
–
Check/set the carburetor components.
–
Check the ignition system.
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/set the carburetor components.
–
Clean the air filter and air filter box.
(
p. 51)
–
Check exhaust system for damage.
–
Change the glass fiber yarn filling of the
main silencer.
(
p. 52)
–
Check the ignition coil.
–
Check the spark plug connector.
–
Check the diaphragm and reed valve hous-
ing.
–
Overhaul the engine.
–
Check the clutch setting.
p. 20)
(
p. 88)
101
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