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57
Troubleshooting
1) Engine not behaving properly
a) Carburetor top is installed backwards (happens a lot)
b) The carburetor slide indexing pin is missing
c) Wrong spark plug installed (8339 Champion to be used on ’04 or later & no
mods)
d) Needle clip is on top of plastic not below
e) Air leak – find where with WD40 or the like
f) Ground wire or ignition leads have fault
2) Engine is down on power
a) Clutch engagement is not set properly
b) Jetting is incorrect
c) Silencer needs repacked
d)
e) Exhaust pipe
i) Has excess carbon buildup
ii) Has large dent in it
f) Compression is low
i) Piston
ii) Rings
g) Reeds are damaged
h) Ignition timing is incorrect
3) Engine is excessively loud
a) Silencer needs to be repacked
4) Engine cuts out at high RPMs
a) Stator bad
b) Carburetor diffuser plate upside down (install like a skirt)
c) Plugged fuel petcock
d) Silencer core tube broken
5) Engine won’t start
a) Fuel
i) None in tank
ii) Is sour or bad
b) Carburetor is dirty
c) Ignition