2002-2006 Yamaha SX Viper 700 Series Snowmobile Service Manual, Page 14Get this manual

2002-2006 Yamaha SX Viper 700 Series Snowmobile Service Manual, Page 14

SPARK PLUGS ENGINE SPARK PLUGS INSP ADJ SCH2010 1Remove: Spark plug caps Spark plugs 2Inspect: Electrodes Damagewear Replace
a: 0.70.8 mm (0.0280.031 in) If necessary, clean the spark plugs with spark plug cleanerStandard spark plug: BR9ES (NGK)