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Maintenance - Adjusting the Drive Belt

Page history last edited by MORG_kw 9 years, 7 months ago
Drive Belt Adjustment 
A big "thank you" goes to Jon (Jon84) from the Delphi "V Star 1300 Riders" forum for sharing the following information.  At the bottom of this page you will see how to very simply make your own drive belt tension tool used for determining if the belt is correctly adjusted.
 
**Chirping drive belt = too loose
**Whining drive belt = too tight
 
Check to be sure that the rear wheel is centered (rear tire must be off the ground to do this):
 
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, only then the rear wheel is centered.
 
To check the tension on the drive belt:
 
With the V Star 1300 on its side stand, using a tension tool which provides 10 lbs of pressure when pushing up on the underneath side of the drive belt, the ideal tension will allow you between 0.20" to 0.28", or 5 to 7 mm of movement when the bike is resting on its side-stand.  And if one is using a jack where the bike's rear wheel is off the ground, the drive belt slack should then be 0.16" to 0.24", or 4 to 6 mm.  
 
Using this home made belt tension tool shown below (can also use another one that you purchased), push up on the bottom of the belt to provide 10 lbs. of pressure while noting the amount of allowable movement in the marked cutout in the lower belt guard.  FYI, each notch on the belt cover is 0.20". 
  • 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.
 
  Here is the handy little tool that Jon84 made and shared with us on the Delphi 1300 Riders forum - - 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 your home scale (or to the one at the grocery store) and push it down on the scale.  When the scale says 10 lbs, take a sharpie pen and draw a circle around the dowel.

web10.jpg belt tension tool picture by VStarman

 

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