3-36
Problem: Engine noisy (Noise seems to come from crankshaft)
Condition
Remedy
1.
Bearing
worn - burned
2.
Lower rod-end bearing
worn - burned
3.
Connecting rod side clearance
too large
1. Replace bearing
2. Replace bearing
3. Replace thrust washer(s)
Problem: Engine noisy (Noise seems to come from transmission)
Condition
Remedy
1.
Gears
worn - rubbing
2.
Splines
worn
3.
Primary gears
worn - rubbing
4.
Bearings
worn
5.
Bushing
worn
1. Replace gears
2. Replace shaft(s)
3. Replace gears
4. Replace bearings
5. Replace bushing
Problem: Engine noisy (Noise seems to come from secondary-transmission/right-side cover)
Condition Remedy
1.
Gears - shaft(s)
worn
2.
Bearing(s)/bushing(s)
damaged
1. Replace gears - shafts
2. Replace bearing(s)/bushing(s)
Problem: Engine noisy (Noise seems to come from secondary bevel gear and final driven shaft)
Condition
Remedy
1.
Drive - driven bevel gears
damaged - worn
2.
Backlash
excessive
3.
Tooth contact
improper
4.
Bearing
damaged
5.
Gears
worn - rubbing
6.
Splines
worn
7.
Final driven shaft thrust clearance
too large
1. Replace gears
2. Adjust backlash
3. Adjust contact
4. Replace bearing
5. Replace gears
6. Replace shaft(s)
7. Replace thrust washer(s)
Problem: Centrifugal clutch slipping
Condition Remedy
1.
Clutch shoes
worn
2.
Clutch housing
excessively worn
3.
Drive belt
slipping - worn
1. Replace shoes
2. Replace clutch housing
3. Replace drive belt
Problem: Secondary-transmission will not shift or shift back
Condition Remedy
1.
Sliding dog
broken - worn
2.
Gearshift fork
broken - worn
3.
Shift lever
out of adjustment
4.
Gearshift cam
worn
5.
Cam stopper spring
weak
6.
Gearshift fork shaft
worn
7.
Engine idle
too high
8.
Shift linkage
out of adjustment
1. Replace dog
2. Replace fork
3. Adjust lever
4. Replace cam
5. Replace spring
6. Replace shaft
7. Adjust engine idle
8. Adjust shift linkage
Problem: Engine idles poorly
Condition
Remedy
1.
Valve clearance
out of adjustment
2.
Valve seating
poor
3.
Valve guides
defective
4.
Rocker arms - arm shaft
worn
5.
Magneto
defective
6.
CDI unit
defective
7.
Spark plug
fouled - gap too wide
8.
Ignition coil
defective
9.
Float
out of adjustment
10.
Jets
obstructed
11.
Pilot screw
setting improper
1. Adjust clearance
2. Replace - service seats - valves
3. Replace guides
4. Replace arms - shafts
5. Replace magneto
6. Replace CDI unit
7. Adjust gap - replace plug
8. Replace ignition coil
9. Adjust float height
10. Clean jets
11. Adjust pilot screw
Back to TOC
Back to Section TOC
Next
Back
FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
www.mymowerparts.com