15BT 130
Condition Cause Remedy
Engine does not start No spark Check that spark plug boot is
properly seated; replace spark
plug; check ignition module and
replace if necessary
Starter rope not pulled vigorously
enough
– over-rich fuel-air mixture
(combustion chamber flooded)
Remove and dry off the spark plug,
pull starter rope several times to
clear combustion chamber, refit
and tighten down the spark plug,
repeat starting procedure
Jet on the
low speed screw L blocked
– no fuel feed
Clean the carburetor or replace if
necessary
Valves not operated correctly or not
at all – timing incorrect or cam
wheel does not turn (e.g. because
of broken teeth on cam wheel) or
cam follower broken.
Check valve gear, adjust if
necessary. And/or check cam
wheel, replace if necessary and
adjust correctly.
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