2002-2006 Yamaha YFR450FAR Service Manual LIT-11616-16-01, Page 87Get 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 tachometer or engine tachometer Timing light (to spark plug lead) Inductive tachometer: PNYU-8036-A 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 the recoil starter 1the timing plug 2G Visually check the stationary pointer to verify it is within the required firing range indicated on the flywheelIncorrect firing range Check the pulser coil assemblyG Install the timing plugG Install the recoil starterG Remove Remove