2007 Arctic Cat DVX/Utility 250 ATV Service Manual, Page 139Get this manual
Problem: Engine noisy (Noise seems to come from crankshaft) Condition Remedy
1Bearing wornburned 2Lower rod-end bearing wornburned 3Connecting rod side clearance too large
1Replace bearing 2Replace bearing 3Replace thrust washer(s)
Problem: Engine noisy (Noise seems to come from transmission) Condition Remedy
Gears wornrubbing Splines worn Primary gears wornrubbing Bearings worn Bushing worn
Replace gears Replace shaft(s) Replace gears Replace bearings Replace bushing
Problem: Engine noisy (Noise seems to come from secondary-transmissionright-side cover) Condition Remedy
1Gearsshaft(s) worn 2Bearing(s)bushing(s) damaged
1Replace gearsshafts 2Replace bearing(s)bushing(s)
Problem: Engine noisy (Noise seems to come from secondary bevel gear and final driven shaft) Condition Remedy
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Drivedriven bevel gears damagedworn Backlash excessive Tooth contact improper Bearing damaged Gears wornrubbing Splines worn Final driven shaft thrust clearance too large