1997 Yamaha YFM600FWAK ATV Service Manual, Page 75Get this manual

IGNITION TIMING CHECK IGNITION TIMING CHECK

NOTE: Engine idling speed and throttle cable free play should be adjusted properly before checking the ignition timing
1.Attach: Inductive tachometer or engine tachometer Timing light (to spark plug lead)
Inductive tachometer: PINYU-8036-A Engine tachometer: PIN90890-03113 Timing light: PINYM-33277-A, 90890-03141

2.Check: Ignition timing

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives