lighter roller weight or heavy ones?

[mikhail masevich]

I have a roler weight question I have a stock set up I changed lighter roller weights and and looks like the belt or clutch is slipping but the scooter is not going

[XPS1210]

I pulled this question from another thread... But it was never answered and needs to be....


here is what I have learned about roller weights...

I ordered my stage 3 kit from provo... installed it and have about 700 miles on the set up...

I also have upgears and the CDI unit installed...

Now I have a problem where my belt is being torn up... I started to do some listening to what was happening... as well then opened the tranny case and watched...

I had EXTREMELY light weights... 4 or 4.5gram... then I drilled 1/4 of the metal out of them... So they were probably 3-3.5 grams...

Now what was happening is... My belt was slipping at the variator. I believe due to the weights being so light that they wouldn't catch the variator and belt togeather... It would let loose and my belt blew up... I toasted 1 kevlar and took 1/2 of the stock belt off...

I can litterally (with those light weights), hold the front brake and at WOT the belt would sit still but the variator would spin!

So... There is a trade off you need to be aware of with ligther weights.

1st is top end. You can loose some top end speed with light weights due to the variator not spreading all the way out.

2nd is, that the belt can slip causing premature wear of the belt and variator/finned pulley. This is caused by there not being enough pressure to keep the variator pulley pressed into the belt...

I think that this sums the questions up on what lighter weights can do...

Heavier weights:

Can cause the engine to bog from spreading the variator to quick. This will cause you to "CREAP" up to a top speed and also cause slow downs on hills...

Unfortunately you need to find the middle ground on weights... One that keeps the belt enguaged but doesn't hurt the acceleration to much...