Trouble Diagnosis - TGB BLADE 250 Service Manual

Trouble Diagnosis

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