Maintenance - Adjusting the Drive Belt

Page history last edited by Kevin 1 mo ago
Drive Belt Adjustment
 
 
Chirping drive belt = too loose
Whining drive belt = too tight or not tracking in center of pulley
 
 
Check to be sure that rear wheel is centered (rear tire must be off the ground):
 
Don’t trust the alignment hash marks on the frame. On each side, measure the distance from center of the swingarm bolt to the center of the axle. When the measurement is the same on both sides, then the rear wheel is centered.
 
 
To check the tension on the drive belt:
 
With the V* on its sidestand, push up on the bottom of the belt, noting the amount of movement in the marked cutout in the lower belt guard. The ideal tension will provide approximately ½-inch of movement.
 
 
To adjust the drive belt tension, have the Road* on its sidestand or have someone of equal or lesser weight sit on the Road* (weight on the rear tire will allow you to better gauge the proper tension needed), then adjust as follows:
 
  • Loosen rear brake caliper bracket.
  • Loosen rear axle nut on right side.
  • Loosen rear axle adjuster nuts
  • Loosen/tighten BOTH adjuster bolts in ¼-turn increments.
  • TIGHTEN locking nuts on both adjusters!
  • Torque the rear axle nut
  • Check belt tracking by rotating rear tire. Readjust as needed.
  • Tighten rear brake caliper bracket.
 
  This is a handy tool that Jon84 shared with us on the delphi forums. Cheap and easy to make.
 

You can easily make your own belt gauge... the cardboard on the right is marked with 5mm on one side and 7mm on the other... take your gauge to the grocery store and push it down on the weight scale... when the scale says 10lbs., take a sharpie pen and draw a circle around the dowel...

web10.jpg belt tension tool picture by VStarman

 

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