2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 245Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 245

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IGNITION SYSTEM ELEC

SPARK PLUG 1 Remove: Spark plugs 2 Measure: Spark plug gap a
Standard spark plug: CR9E (NGK) Spark plug gap: 0.7 0.8 mm (0.028 0.031 in)