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Message started by LuckyLuna on 06/23/20 at 08:58:29

Title: Tension on the Belt?
Post by LuckyLuna on 06/23/20 at 08:58:29

I've been looking to check the Tension and I cant find the deflection numbers in the manuel. It just talks about the plunger and if its in the correct lines.

I would like to do it properly, (I've just been doing the twist test) does anyone know the deflection #'s under 10pd pressure?

Title: Re: Tension on the Belt?
Post by Dave on 06/23/20 at 10:38:37

The original tool kit had a brass plunger to test the belt tension.....it was pathetic and resulted in a "too tight" belt.

The twist method is our recommended method......and you should be able to twist 90 degrees pretty easily. A bit too lose is preferable to too tight in my opinion.

Title: Re: Tension on the Belt?
Post by justin_o_guy2 on 06/23/20 at 10:51:16

Dave is nearly always wrong..
But not here.

Thumb on one side, finger on the other, 90 degree twist in the bely 1/2 way between drive and driven pulleys,, Youre good..
I was kidding bout Dave being wrong,,

Title: Re: Tension on the Belt?
Post by Tocsik on 06/23/20 at 12:47:50

How do you guys keep your belt loose enough with taller shocks and the bigger Kaw front pulley?

Title: Re: Tension on the Belt?
Post by stewmills on 06/23/20 at 13:30:50

360D01110B09620 wrote:

How do you guys keep your belt loose enough with taller shocks and the bigger Kaw front pulley?

140/90/15 rear and KAW front pulley, I have my rear tire as far forward as it will go minus a little twist on the adjusters to center the rear belt/pulley and it's just about perfect. If I were a real heavy guy I would worry about stressing the belt, but I'm a little frail old man like Dave ;D ;D ;D

Title: Re: Tension on the Belt?
Post by Dave on 06/23/20 at 15:20:50

645F5343595B300 wrote:

How do you guys keep your belt loose enough with taller shocks and the bigger Kaw front pulley?

My belt is pretty loose when I am not sitting on the bike....it tightens up a bit while I am on the bike and riding, and the angle of the swing arm results in the belt tightening on bumps.....so it is looser at rest than when using the short stock shocks.

A looser belt has never caused me any problems - I have seen "too tight" belts get cracks in covering on the outer side of the belt.....the belt has been pulled too tight and stretched.

In the near future maybe I can mount my GoPro on the swingarm and take a video.......that might be kind of fun!

Title: Re: Tension on the Belt?
Post by Armen on 06/23/20 at 18:06:03

Ok, so the plot thickens. Kawi pulley and longer shocks. Hmmm

This is how I do mine (with those mods):
Jack under the motor so there is no weight on the rear wheel.
Remove the shocks.
Slowly lift the rear wheel and see when the belt is tightest. The should be when the pulley, the swingarm pivot, and the rear axle are all in a straight line.
Adjust the belt tension with the usual adjusters so that there is no slack, but no tension.
If you can't get enough slack, use a die grinder to open up the windows in the swingarm that the axle passes through.
Reinstall the shocks.
Put the bike back on the ground, and take a note of how much slack the belt has when the wheel is on the ground.
That is your new belt tension spec to use when adjusting the belt with the wheel on the ground.
Make sense?

Title: Re: Tension on the Belt?
Post by Bubba on 06/24/20 at 08:29:56

Yeah, I still need to do this...I have the taller shocks, taller wheel and the modified pulley...
I don't weigh much but I feel like my belt is too tight when I'm riding...
I probably just need to grind like 2-3mm off the slots...