2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 337Get this manual
3Install the impellershaft assembly into the bearing housing; then secure with the E-ringNOTE: Make sure the E-ring is fully seated and the impeller rotates freely 4While holding the bearing housing assembly in position on the engine, slowly rotate the impeller until the impellershaft engages properly with its slot in the driven shaftNOTE: The bearing housing will be flush with the engine when the two shafts are properly engaged
3Place the footrest into position on the frame and loosely secure with four cap screws; then secure the front and rear fenders to the footrest with the four torx-head cap screwsTighten the four torx-head cap screws securely; then tighten the remaining cap screws to 20 ft-lb4Fill the enginetransmission with the proper amount of recommended oil5Fill the cooling system with the proper amount of recommended coolantNOTE: While the cooling system is being filled, air pockets may develop; therefore, run the engine for five minutes after the initial fill, shut the engine off, and then fill the cooling system