2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 351Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 351

GEAR SELECTION INSP ADJ GEAR SELECTION The reduction ratio of the driven gear to the drive gear must be set according to
increasedIf the surfaces are fairly smooth or better snow conditions exist, decrease the ratio Gear ratio chart The drive
and driven gears and the chains shown in the gear ratio chart are available as optionsThe figures containing decimal point