2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 311Get this manual
Checking Tooth Contact NOTE: After correcting backlash of the secondary driven bevel gear, it is necessary to check tooth contact
Correcting Tooth Contact
NOTE: If tooth contact pattern is comparable to the correct pattern illustration, no correction is necessary
1Remove the secondary driven output shaft assembly from the left-side crankcase half2Clean the secondary driven bevel gear teeth of old oil and grease residue3Apply thin, even coat of machinist-layout dye to several teeth of the gear4Install the secondary driven output shaft assembly5Rotate the secondary driven bevel gear several revolutions in both directions6Examine the tooth contact pattern in the dye and compare the pattern to the illustrations
If tooth contact pattern is comparable to an incorrect pattern, correct tooth contact according to the following chartTooth Contact
Contacts at Top Contacts at Root
Shim Correction
Increase Shim Thickness Decrease Shim Thickness
NOTE: To correct tooth contact, steps and (with NOTE) of "Correcting Backlash" must be followed and the above "Tooth ContactShim Correction" chart must be consulted