2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 20Get this manual
ATV-0051
! CAUTION
Before removing spark plug, be sure to clean the area around the spark plugDirt could enter engine when removing or installing the spark plug
2Using suitable brush, clean the carbon deposits from the screen taking care not to damage the screenNOTE: If the screen or gasket is damaged in any way, it must be replaced
Adjust the gap to 0.7-0.8 mm (0.028-0.032 in for proper ignitionUse feeler gauge to check the gap
3Install the spark arrester assembly with gasket; then secure with the three cap screwsTighten to 4.0 ft-lb
ATV0052C