1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 142Get this manual
CHAPTER FOUR
as those shown, while still exhibiting the same condition
aToo much oil in the fuel (incorrect mixture of gasoline and oil or incorrect oil pump adjustment)bWrong type of oilcIgnition component failuredSpark plug heat range too coldeEngine still being broken inOil fouled spark plugs may be cleaned in an emergency, but it is better to replace themIt is important to correct the cause of fouling before the engine is returned to service
Normal condition