1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 190Get this manual
CHAPTER FIVE
tighten it to pull the piston pin into the pistonDo not use excessive forceIf it is difficult to move the piston pin, check to make sure the pin is not catching on the needle bearing in the connecting rod
and that the ends are aligned with the locating pinsSee Figure 739If new components were installed, the engine must be broken in as if it were newRefer to Break-In Procedure in Chapter Three