Troubleshooting Chart - Yamaha TT-R TT250RN Owner's Manual

Troubleshooting chart

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Keep away open flames and do not smoke while checking or working on the fuel system.
1. Fuel
Check if there is fuel
in the fuel tank
2. Compression
Use electric starter.
3. Ignition
Remove spark
plug and check
electrodes.
4. Battery
Use electric starter.
PERIODIC MAINTENANCE AND MINOR REPAIR
Enough fuel Go to compression check.
No fuel Supply fuel.
There is compression.
Go to ignition check.
No compression. Ask a Yamaha dealer to inspect.
Wipe clean with dry cloth and
Wet
adjust plug gap or replace plug.
Dry
Ask a Yamaha dealer to inspect.
Engine turns over
Battery good.
quickly.
Engine turns over Check connections
slowly. or recharge.
6-38
EAU01397
EW000125
Engine doesn't start, go to
compression check.
Open the throttle half-way and start
the engine.
Engine doesn't start, go to battery
check.
Engine doesn't start, ask a Yamaha
dealer to inspect.
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