2007 Yamaha Apex Factory Service Manual, Page 342Get this manual

2007 Yamaha Apex Factory Service Manual, Page 342

CLUTCHGEAR SELECTION INSP ADJ The clutch may require tuning depending upon where the machine will be operated and the desired
conditions (wet snow, icy snow, hills, or rough terrain), however, engine speed may decrease after the shifting speed has
been reachedA Engine speed Good condition Clutch shifting speed Clutch engagement speed Starting position Distance travelled
800 (2,500 ft) GEAR SELECTION The reduction ratio of the driven gear to the drive gear must be set according to the snow
conditionsIf there are many rough surfaces or unfavorable snow conditions, the drivedriven gear ratio should be increasedIf
the surfaces are fairly smooth or better snow conditions exist, decrease the ratioGear ratio chart The drive and driven gears