:D What years of a skidoo 670 motor bolt right into a 98' MXZ 500 chasis. I can't seem to get the 92' mach motor in. :) Thanx. Any help will be apretiated.

They should all fit, asI don't think the 670 engine itself has changed. The only problem you may run into is with the pipe fitting in a different chassis ???

The motor should fit no problem. you probably need a 670 S-chassis (98' 500) engine mounting plate. :p