1997 Ski-Doo Factory Shop Manual Volume Three, Page 56Get this manual
Section 03 ENGINE Sub-Section 02 (599, 699 AND 809 ENGINE TYPES)
REMOVAL FROM VEHICLE
Remove or unplug the following then lift off engine from engine compartmentNOTE: 3-cylinder engine is more heavy then cylinder engineIt weights about 45 kg (100 Ib)Use of hoist is recommended belt guard drive belt drive pulley air intake silencers carburetors exhaust pipes after muffler wiring connections coolant rewind starter CDI box from accessory support oil injection inlet line at oil injection pump coolant hoses engine support screws engine stopper (left rear of engine) impulse lines from engine