2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 122Get this manual
3Lubricate the inside wall of the cylinder; then using ring compressor or the fingers, compress the rings and slide the cylinder over the pistonRoute the cam chain up through the cylinder cam chain housing; then remove the piston holder and seat the cylinder firmly on the crankcase ! CAUTION
The cylinder should slide on easilyDo not force the cylinder or damage to the piston, rings, cylinder, or crankshaft assembly may occurMD1349
6Place new gasket into position on the cylinderPlace the alignment pins into position; then place the head assembly into position on the cylinder making sure the cam chain is routed through the chain cavity
! CAUTION
Keep tension on the cam chain to avoid damaging the crankcase bossMD1345
4Loosely install the two nuts with washers which secure the cylinder to the right-side crankcase halfNOTE: The two cylinder-to-crankcase nuts will be tightened in step 9