2001 Arctic Cat ATVs factory service and repair manual, Page 226Get this manual
Fig3-844
SHIFT FORK THICKNESS (250300 cc)
#1, #2, and #3 Secondary Transmission #1 and #2 Reverse 4.3-4.4 mm (0.169-0.173 in 5.3-5.4 mm (0.209-0.213 in 3.8-3.9 mm (0.150-0.154 in
SHIFT FORK THICKNESS (400500 cc)
5.3-5.4 mm (0.209-0.213 in 5.3-5.4 mm (0.209-0.213 in 4.8-4.9 mm (0.189-0.193 in
Secondary Transmission Reverse
Fig3-845
MEASURING SHIFT FORK GROOVE (WIDTH)
1Using calipers, in turn measure the width of each shift fork grooveFig3-847