2007 Arctic Cat ATVs 400/500/650/700 Service Manual, Page 93Get this manual
NOTE: The countershaft is now completely assembled for installation
3With the key in position, slide the driven gear onto the crank balancer making sure the timing marks are aligned
Assembling Crankcase Half
NOTE: For ease of assembly, install components on the left-side crankcase halfNOTE: If the output shaft and gear were removed, make sure that the proper shim is installed
1To install the output shaft and gear, place the shaft into position with proper shims, slide the gear onto the shaft, and secure with new nut tightened to specifications2Apply liberal amount of engine oil to the crankshaft bearingUsing propane torch, heat the bearing until the oil begins to smoke; then slide the crankshaft assembly into placeInstall the crank balancer