2003 Yamaha YFM400FAR Kodiak Factory Service Manual, Page 81Get this 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 timing1.Remove: Seat Fuel tank side panel (right) Refer to "SEAT, CARRIERS, FENDERS AND FUEL TANK"2.Attach: Inductive self-powered tachometer or engine tachometer Timing light (to spark plug lead) Inductive self-powered tachometer: PNYU-8036-B Engine tachometer: PN90890-03113 Timing light: PNYM-33277-A, 90890-03141 3.Check: Ignition timing Checking steps: Warm up the engine and keep it at the specified speedEngine speed: 1,4501,550 rmin