2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 340Get this manual
CRANKSHAFT ASSEMBLY Incorrect (contact at tooth root)
Measuring Connecting Rod (Small End Inside Diameter)
1Insert snap gauge into the upper connecting rod small end bore; then remove the gauge and measure it with micrometer
ATV-0105
Correct
ATV-0104
2Maximum diameter is 23.04 mm (0.9070 in Measuring Connecting Rod (Small End Deflection)
Correcting Tooth Contact
NOTE: If tooth contact pattern is comparable to the correct pattern illustration, no correction is necessary
1Place the crankshaft on set of V-blocks and mount dial indicator and base on the surface platePosition the indicator contact point against the center of the connecting rod small end journal
2Zero the indicator and push the small end of the
connecting rod away from the dial indicator3Maximum deflection is mm (0.12 inMeasuring Connecting Rod (Big End Side-to-Side)
1If tooth contact pattern is comparable to an incorrect pattern, correct tooth contact according to the following chart