1987-2009 Yamaha ATV YFM350X Warrior Raptor Service Manual, Page 49Get this manual

IDLING SPEED ADJUSTMENT WB3AEOO4

IDLING SPEED ADJUSTMENT
1Start the engine and let it warm up for several minutes
2Attach: Inductive tachometer (to the spark plug lead)Inductive tachometer: PIN YU-8036-A

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