2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 521Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 521

Problem: Engine noisy (Noise seems to come from piston) Condition Remedy 1Pistoncylinder worn 1Replaceservice pistoncylinder
to come from crankshaft) Condition Remedy 1Bearing wornburned 1Replace bearing 2Lower rod-end bearing wornburned 2Replace
bearing 3Connecting rod side clearance too large 3Replace thrust washer(s) Problem: Engine noisy (Noise seems to come from
transmission) Condition Remedy 1Gears wornrubbing 1Replace gears 2Splines worn 3Primary gears wornrubbing 2Replace shaft(s)
3Replace gears 4Bearings worn 4Replace bearings 5Bushing worn 5Replace bushing Problem: Engine noisy (Noise seems to come
from secondary-transmissionlleft-side cover) ConditionRemedy1Gearsshaft(s) worn 1Replace gearsshafts 2Bearing(s)lbushing(s)
damaged 2Replace bearing(s)bushing(s) Problem: Engine noisy (Noise seems to come from secondary bevel gear and final driven
shaft) Condition Remedy 1Drivedriven bevel gears damagedworn 1Replace gears 2Backlash excessive 2Adjust backlash 3Tooth contact