1971-1973 Arctic Cat Snowmobiles Factory Service Manual, Page 60Get this manual
ENGINE SERVICING (WANKEL KM914B) Side Plate Power Drive-Side Heat the side plate power drive-side to approximately Press out the support ri ng (1) and 335 0F (150 oC)cylindrical roller bearing (2)Press the support ring (1) and cylindrical roller bearing (2) completely onto their stopTo press the seals in and out, heat the receiving plate (2) and retaining flange (1) to approximately 212 0F (100 oC)Press the seals in flush, as illustrated, with the sealing lip first
Mainshaft
Cylindrical Bearing Inner Race
Replacing the Fan, Magneto Flywheel and CounterWeight Flywheel
Disassembling Remove screws and take out magneto flywheel (1)