2011 Arctic Cat 450/550/650/700/1000 ATV Service Manual, Page 126Get this manual
10If the remaining cylinder head is to be serviced, apply tension to the loose timing chain and rotate the second cylinder to top-dead-center of the compression stroke; then repeat steps 2-10 on the other cylinder head AT THIS POINT
To service valves and cylinder head, see Servicing Top-Side Components sub-section
AT THIS POINT
To inspect cam chain guide, see Servicing Top-Side Components sub-sectionGZ160A
CCylinders DPistons
NOTE: Steps 1-10 in the preceding sub-section must precede this procedure
13Lift the cylinder off the crankcase taking care not to allow the piston to drop against the crankcaseAccount for the gasket and two alignment pins