1983-1988 Genuine Yamaha Enticer/Excell III 340 Series Snowmobile Service Manual, Page 82Get this manual

1983-1988 Genuine Yamaha Enticer/Excell III 340 Series Snowmobile Service Manual, Page 82

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BIgnition Timing Use of dial gauge 1 Remove the starter from the engine2 Remove the spark plug, and screw the dial gauge stand into the spark plug hole (right)Dail gauge stand: YU-01256-1 90890-01195-