Checking The Ignition Timing - Yamaha 2004 YXR660 Service Manual

CHECKING THE IGNITION TIMING

CHECKING THE IGNITION TIMING
NOTE:
Engine idling speed and throttle cable free play
should be adjusted properly before checking
the ignition timing.
1. Remove:
2. Lift the cargo bed up.
3. Attach:
4. Remove:
1
5. Remove:
1
3 - 10
• driver seat
• passenger seat
• console
Refer to "SEATS, ENCLOSURE, HOOD
AND CARGO BED" in chapter 8.
• tachometer
• timing light
(to the spark plug lead)
Digital engine test tachometer
P/N. YU-8036-C
Engine tachometer
P/N. 90890-03113
Timing light
P/N. 90890-03141
Battery powered timing light
P/N. YM-33277-A
• air shroud 1 1
• engine cooling fan 1
CHK
ADJ