2008 Yamaha Motorsports Apex LTX Owners Manual - Page 79

2008 Yamaha Motorsports Apex LTX Manual

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Troubleshooting NOTE: Make sure that both the red (+) connecting lead and the black (-) connecting lead are seated securely in the lead holders. Electric starter does not operate or operates slowly G G G G Engine stop switch is pushed in: Pull it out. Faulty wire connections: Check connections or ask a Yamaha dealer to inspect. Discharged battery: Charge battery or see "Starting the engine with a discharged battery" above. Seized engine: Seizure is caused by poor lubrication, inadequate fuel, or an air leak. Ask a Yamaha dealer to inspect. Low coolant temperature indicator light is flashing: Warm the engine up. Faulty spark plugs: Clean or replace the spark plugs. Improper fuel flow: See "Engine turns over but does not start-Fuel system" above. Incorrect V-belt clutch settings for altitude or conditions: Ask a Yamaha dealer to inspect. Engine power is low G G 8. 9. 10. 11. 12. 13. 14. Start the engine. Disconnect the black (-) jumper cable from the black (-) connecting lead, and then pull the cover completely over the lead terminal. Disconnect the black (-) jumper cable from the negative (-) terminal of the battery used to jump start the engine. Disconnect the red (+) jumper cable from the positive (+) terminal of the battery used to jump start the engine. Disconnect the red (+) jumper cable from the red (+) connecting lead, and then pull the cover completely over the lead terminal. Install the red (+) connecting lead into the lead holder. Install the right side cover and the shroud. G G Engine constantly backfires or misfires G G G Faulty spark plugs: Replace the spark plugs. Clogged fuel system: See "Engine turns over but does not start-Fuel system" above. Malfunctioning T.O.R.S.: See "Engine turns over but does not start-Electrical system" above. Insufficient coolant: Add coolant. Air in cooling system: Bleed the cooling system or ask a Yamaha dealer to inspect. Leaking coolant: Ask a Yamaha dealer to inspect. Engine overheats G G G 73

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Troubleshooting
73
8.
Start the engine.
9.
Disconnect the black (–) jumper cable
from the black (–) connecting lead, and
then pull the cover completely over the
lead terminal.
10. Disconnect the black (–) jumper cable
from the negative (–) terminal of the bat-
tery used to jump start the engine.
11.
Disconnect the red (+) jumper cable from
the positive (+) terminal of the battery
used to jump start the engine.
12.
Disconnect the red (+) jumper cable from
the red (+) connecting lead, and then pull
the cover completely over the lead termi-
nal.
13.
Install the red (+) connecting lead into the
lead holder.
14.
Install the right side cover and the shroud.
NOTE:
Make sure that both the red (+) connecting
lead and the black (–) connecting lead are
seated securely in the lead holders.
Electric starter does not operate or
operates slowly
●
Engine stop switch is pushed in: Pull it out.
●
Faulty wire connections: Check connec-
tions or ask a Yamaha dealer to inspect.
●
Discharged battery: Charge battery or see
“Starting the engine with a discharged bat-
tery” above.
●
Seized engine: Seizure is caused by poor
lubrication, inadequate fuel, or an air leak.
Ask a Yamaha dealer to inspect.
Engine power is low
●
Low coolant temperature indicator light is
flashing: Warm the engine up.
●
Faulty spark plugs: Clean or replace the
spark plugs.
●
Improper fuel flow: See “Engine turns over
but does not start–Fuel system” above.
●
Incorrect V-belt clutch settings for altitude
or conditions: Ask a Yamaha dealer to in-
spect.
Engine constantly backfires or mis-
fires
●
Faulty spark plugs: Replace the spark
plugs.
●
Clogged fuel system: See “Engine turns
over but does not start–Fuel system”
above.
●
Malfunctioning T.O.R.S.: See “Engine turns
over but does not start–Electrical system”
above.
Engine overheats
●
Insufficient coolant: Add coolant.
●
Air in cooling system: Bleed the cooling sys-
tem or ask a Yamaha dealer to inspect.
●
Leaking coolant: Ask a Yamaha dealer to
inspect.