2008 Yamaha Motorsports Phazer GT Owners Manual - Page 77

2008 Yamaha Motorsports Phazer GT Manual

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Troubleshooting ESU12392 G Engine turns over but does not start 1. Fuel system No fuel supplied to combustion chamber G No fuel in tank: Supply fuel. G Clogged fuel line: Clean fuel line. G Clogged injector: Ask a Yamaha dealer to inspect. Fuel supplied to combustion chamber G Flooded engine: Crank engine with throttle open or wipe the spark plugs dry. Electrical system Poor spark or no spark G Spark plugs are dirty with carbon or are wet: Remove carbon or wipe the spark plugs dry. Replace if necessary. G Faulty ignition system: Ask a Yamaha dealer to inspect. G T.O.R.S. malfunction: Disconnect the throttle switch connectors and connect the wire harness connectors together to bypass the T.O.R.S. The T.O.R.S. is an important safety device; in the case of a malfunction, take the snowmobile to a Yamaha dealer immediately for repair. Compression Insufficient G Loose cylinder head nuts: Tighten nuts properly. G Worn or damaged gasket: Replace gasket. G Worn or damaged piston and cylinder: Ask a Yamaha dealer to inspect. 3. 2. Discharged battery If the battery is discharged, the engine can be started using a fully-charged 12-volt battery and jumper cables. EWS00580 WARNING G G Connect the jumper cables only to the battery terminals. Do not connect them to the frame or any wire or other lead. When connecting the jumper cables, do not contact the jumper cables to each other or to the frame or any metal part of the snowmobile. This can cause electrical system damage or A FIRE HAZARD. Apply the parking brake and turn the main switch to the off position. Remove the right side cover. (See page 45 for removal procedures.) Connect the red (+) jumper cable to the positive (+) terminal of the discharged battery. Connect the other end of the red (+) jumper cable to the positive (+) terminal of the booster battery. Connect the black (-) jumper cable to the negative (-) terminal of the booster battery. 1. 2. 3. EWS00560 WARNING G 4. Before bypassing the T.O.R.S., make sure that the throttle returns properly to the fully closed position. 5. 71

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Troubleshooting
71
ESU12392
Engine turns over but does not start
1.
Fuel system
No fuel supplied to combustion chamber
●
No fuel in tank: Supply fuel.
●
Clogged fuel line: Clean fuel line.
●
Clogged injector: Ask a Yamaha dealer
to inspect.
Fuel supplied to combustion chamber
●
Flooded engine: Crank engine with
throttle open or wipe the spark plugs
dry.
2.
Electrical system
Poor spark or no spark
●
Spark plugs are dirty with carbon or are
wet: Remove carbon or wipe the spark
plugs dry. Replace if necessary.
●
Faulty ignition system: Ask a Yamaha
dealer to inspect.
●
T.O.R.S. malfunction: Disconnect the
throttle switch connectors and connect
the wire harness connectors together
to bypass the T.O.R.S.
WARNING
EWS00560
●
Before bypassing the T.O.R.S., make
sure that the throttle returns properly to
the fully closed position.
●
The T.O.R.S. is an important safety de-
vice; in the case of a malfunction, take
the snowmobile to a Yamaha dealer im-
mediately for repair.
3.
Compression
Insufficient
●
Loose cylinder head nuts: Tighten nuts
properly.
●
Worn or damaged gasket: Replace
gasket.
●
Worn or damaged piston and cylinder:
Ask a Yamaha dealer to inspect.
Discharged battery
If the battery is discharged, the engine can be
started using a fully-charged 12-volt battery
and jumper cables.
WARNING
EWS00580
●
Connect the jumper cables only to the
battery terminals. Do not connect them
to the frame or any wire or other lead.
●
When connecting the jumper cables, do
not contact the jumper cables to each
other or to the frame or any metal part of
the snowmobile. This can cause electri-
cal system damage or A FIRE HAZARD.
1.
Apply the parking brake and turn the
main switch to the off position.
2.
Remove the right side cover. (See page
45 for removal procedures.)
3.
Connect the red (+) jumper cable to the
positive (+) terminal of the discharged
battery.
4.
Connect the other end of the red (+)
jumper cable to the positive (+) terminal
of the booster battery.
5.
Connect the black (–) jumper cable to the
negative (–) terminal of the booster bat-
tery.