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Troubleshooting
77
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.
6. Connect the other end of the black (–)
jumper cable to the negative (–) terminal
of the discharged battery. NOTICE: Do
not reverse the connections! Make
sure that all connections are secure
and correct before attempting to start
the engine. Any wrong connection
could damage the electrical system.
[ECS00671]
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.
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.
U8GK12E0.book Page 77 Monday, May 19, 2008 11:17 AM