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Troubleshooting
70
6. Connect the other end of the black (–)
jumper cable to the negative (–) terminal
of the discharged battery.
CAUTION:
ECS00670
Do not reverse the connections! Make
sure that all connections are secure and
correct before attempting to start the en-
gine. Any wrong connection could dam-
age the electrical system.
7. Start the engine.
8. Disconnect the black (–) jumper cable
from the negative (–) terminal of the dis-
charged battery.
9. Disconnect the black (–) jumper cable
from the negative (–) terminal of the bat-
tery used to jump start the engine.
10. Disconnect the red (+) jumper cable from
the positive (+) terminal of the battery
used to jump start the engine.
11. Disconnect the red (+) jumper cable from
the positive (+) terminal of the discharged
battery.
12. Install the right side cover and the shroud.
Electric starter does not operate or
operates slowly
1. Engine stop switch is pushed in: Pull it
out.
2. Faulty wire connections: Check connec-
tions or ask a Yamaha dealer to inspect.
3. Discharged battery: Charge battery or
see “Discharged battery” above.
4. Seized engine: Seizure is caused by poor
lubrication, inadequate fuel, or an air
leak—. Ask a Yamaha dealer to inspect.
Engine power is low
1. Low coolant temperature indicator light is
flashing: Warm the engine up.
2. Faulty spark plugs: Clean or replace the
spark plugs.
3. Improper fuel flow: See “Fuel system”
above.
4. Incorrect V-belt clutch settings for altitude
or conditions: Ask a Yamaha dealer to in-
spect.
Engine constantly backfires or mis-
fires
1. Faulty spark plugs: Replace the spark
plugs.
2. Clogged fuel system: See “Fuel system”
above.
3. Malfunctioning T.O.R.S.: See “Electrical
system” above.
Engine overheats
1. Insufficient coolant: Add coolant.
2. Air in cooling system: Bleed the cooling
system or ask a Yamaha dealer to in-
spect.
3. Leaking coolant: Ask a Yamaha dealer to
inspect.
Snowmobile does not move
1. Malfunctioning V-belt clutch: Ask a
Yamaha dealer to inspect.
2. Drive track does not move: Foreign ob-
ject is caught in the drive track, or slide
runners have melted to the slide metal
due to lack of lubrication.
3. Tight, loose, or broken drive chain: Ask a
Yamaha dealer to inspect.
V-belt twists
1. Improper V-belt: Replace with the correct
V-belt.
2. Incorrect V-belt clutch offset: Ask a
Yamaha dealer to inspect.
U8GL10E0.book Page 70 Friday, May 18, 2007 3:17 PM