2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 113Get this manual
15Using Piston Pin Puller, remove the piston pinAccount for the opposite-side circlipRemove the pistonNOTE: It is advisable to remove the opposite-side circlip prior to using the puller AT THIS POINT
To service center crankcase components only, proceed to Removing Left-Side Components
Servicing Top-Side Components
NOTE: Whenever part is worn excessively, cracked, or damaged in any way, replacement is necessary
VALVE ASSEMBLY When servicing valve assembly, inspect valve seats, valve stems, valve faces, and valve stem ends for pits, burn marks, or other signs of abnormal wearNOTE: Whenever valve is out of tolerance, it must be replaced
NOTE: Support the connecting rod with rubber bands to avoid damaging the rod or install connecting rod holder
CleaningInspecting Valve Cover