Arctic Cat 650 Twin2004 Service Manual page 71

22. Increase or decrease shim thickness on the drive
bevel gear housing until the correct contact pattern
is obtained.

NOTE: Always check gear backlash after chang-
ing any shims.

NOTE: The following illustration indicates that
the drive gear is running too shallow in the set.
Decrease drive housing shims and increase driven
housing shims.
3-42

NOTE: The following illustration indicates that
the drive gear is running too deep in the set.
Increase drive housing shims and decrease driven
housing shims.
ATV2089

NOTE: Changing driven housing shims will
affect backlash more than contact pattern. Chang-
ing drive housing shims will affect contact pattern
more than backlash. Always recheck backlash.
23. After backlash and contact patterns are within
specifications, install the bevel gear assemblies in
accordance with steps 1 and 2 of this sub-section.
24. From the right side, install the intermediate cam
driveshaft (A) and front camshaft chain.
25. Align the keyway (A) with the index line (B) on
the crankcase; then install the timing chain and
engage the intermediate shaft sprocket.
ATV2090
ATV2091
KX335