2009 Arctic Cat 90 ATV Service Manual, Page 18Get this manual
Adjusting Shift Linkage If the ATV jumps out of gear, is difficult to get in gear, or the neutral and reverse indicator lights do not illuminate, shift linkage adjustment may be necessary1Shift the transmission into reverse; then remove the cap screw securing the linkage to the transmission shift armCD620
5Place the V-belt cover and one rear brake cable tab into position; then secure with the eight cap screws
2Verify that the transmission is in reverse, the ignition switch is in the ON position, the reverse indicator light is illuminated, and the shift lever is fully in the reverse position; then loosen the upper and lower jam-nuts on the shift linkage and adjust the linkage to align with the shift arm