1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 182Get this manual
172 will remain together and not mistakenly mixed with other similar parts
CHAPTER FIVE
7Lift the piston from the connecting rod8Remove the needle bearing from the connecting rod (Figure 50)9Repeat the removal procedure for the other piston(s)10If the pistons are going to remain off for some time, cover the end of each rod with piece of foam insulation tube or shop cloth to protect itNOTE Always remove the top piston ring first
3With micrometer, measure the piston pin outside diameter (Figure 54) at several different points and compare to the service specification listed in Table 2-9If the piston pin is worn, replace the pin and bearing as set4Measure the piston pin bore in the piston with snap gauge (Figure 55), then measure the snap gauge with micrometer to determine the pin bore diameterCompare measurement with serv-