2007 Polaris Two Stroke Snowmobile Workshop Repair manual, Page 200Get this manual
FRONT SUSPENSIONSTEERING FRONT SUSPENSION ADJUSTMENT PROCEDURES
SET UP AND ADJUSTMENTS
Spring preload is one of the adjustment options which affects ridePreload is the amount of pressure at which the spring is heldThe longer the installed length of the spring, the less the amount of pre-load; the shorter the installed length of the spring, the more the amount of pre-loadAn increase in IFS shock spring pre-load will result in an increase in ski pressureTo adjust front spring preload on threaded adjust models, grasp the spring and turn in clockwise direction (as viewed from the bottom of the shock) to increase the preloadTurn in counterclockwise direction to decrease preloadIn the adjacent illustration, high preload and low preload positions are depictedWhen adjusting, be sure springs on both the left and right sides of the machine are at the same adjustmentFor the best ride the spring preload should be as low as possibleSet the preload to use the full travel of the ski shock with occasional light bottoming