Checking The Ignition Timing - Yamaha YFZ450S 2003 Service Manual

CHECKING THE SPARK PLUG/

CHECKING THE IGNITION TIMING

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9. Install:
• ignition coil
• fuel tank
• side covers (left and right)
• fuel tank cover
• seat
Refer to "SEAT, FENDERS AND FUEL
TANK".
EBS00058
CHECKING THE IGNITION TIMING
NOTE:
_
Engine idling speed and throttle cable free play
should be adjusted properly before checking
the ignition timing.
1. Remove:
• seat
• fuel tank cover
• side covers (left and right)
• fuel tank
NOTE:
Slide the fuel tank.
Refer to "SEAT, FENDERS AND FUEL
TANK".
2. Attach:
• digital tachometer
• timing light
(onto the ignition coil)
Timing light
P/N. YM-33277-A, 90890-03141
3. Install:
• fuel tank
Refer to "SEAT, FENDERS AND FUEL
TANK".
CHK
ADJ