E-TON 4. FUEL SYSTEM
4-3
TROUBLE DIAGNOSIS
Poor engine start
z
No fuel in fuel tank
z
Clogged fuel tube
z
Too much fuel in cylinder
z
No spark from spark plug (malfunction of
ignition system)
z
Clogged air cleaner
z
Malfunction
of
automatic by-starter
z
Malfunction of throttle valve operation
Stall after started
z
Malfunction
of
automatic by-starter
z
Incorrect ignition timing
z
Malfunction
of
carburetor
z
Dirty engine oil
z
Air existing in intake system
z
Incorrect idle speed
Rough idle
z
Malfunction of ignition system
z
Incorrect idle speed
z
Malfunction
of
carburetor
z
Dirty fuel
Intermittently misfire as acceleration
z
Malfunction of ignition system
Late ignition timing
z
Malfunction of ignition system
z
Malfunction of carburetor
Power insufficiency and fuel consuming
z
Fuel
system
clogged
z
Malfunction of ignition system
Mixture too lean
z
Clogged fuel injector
z
Vacuum piston stick and closed
z
Malfunction of float valve
z
Fuel level too low in float chamber
z
Clogged fuel tank cap vent
z
Clogged fuel filter
z
Obstructed fuel pipe
z
Clogged air vent hose
z
Air existing in intake system
Mixture too rich
z
Clogged air injector
z
Malfunction of float valve
z
Fuel level too high in float chamber
z
Malfunction
of
automatic by-starter
z
Dirty air cleaner
Summary of Contents for sport 50
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