Having a problem putting the transmission back together how it should be. Ended up needing an outside trans housing case as the inside broke where one of the gear bearing goes. All the gears etc seem to be fine mot worn but i can not get the shifter drum and shift shaft gears in the right position to shift the gears reverse and fwd. And not sure if the shift fork should have the dog started in a certain gear or what. Any one have a pdf of the service assem. On these machines?

 

Most gear cases the drum has to be at a certain setting. Haven't torn this 4 stroke apart but the manual may be of assistance.2007 Polaris Sportsman 90 Service Manual PDF Download