1972-1981 Polaris Snowmobiles Master Repair Manual, Page 317Get this manual

1972-1981 Polaris Snowmobiles Master Repair Manual, Page 317

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ENGINES
Remove the PTO side crankshaft seal by bending the locking tabs and removing the four (4) cap screws,

Remove the crankcasebolts, and using plastic hammer, tap the crankcase