roller weights

[gauth42]

ROLLER WEIGHTS : can anyone explain how changing the weight up or down will effect performance??
As far as RPM  and TOP SPEED??

 

[BettinANDlosing]

http://www.apriliaforum.com/forums/showthread.php?8960-Variator-roller-weights-and-contra-spring-mechanics-for-dummies!-Learn-how-it-works

[blue]

The lighter the faster the take off.

[gauth42]

Thanks for your replay ,It was very much appreciated !!
What do you think about drilling out roller weights to change the weight??
Also when I bought my Kymco cobra I also purchased a shop manual ,
On the cover page was a 50cc and a 100cc modal.My question is, how can I locate a 100cc Kit
 as an up grade??

[BettinANDlosing]

Thanks for your replay ,It was very much appreciated !!
What do you think about drilling out roller weights to change the weight??
Also when I bought my Kymco cobra I also purchased a shop manual ,
On the cover page was a 50cc and a 100cc modal.My question is, how can I locate a 100cc Kit
 as an up grade??

The 100cc is not available as a "kit" because the 100cc model uses a different crankcase, piston, cylinder, crankshaft etc. You can easily get 70cc kit to fit your 49cc engine case. It would be $$$$$ to swap to the 100cc setup, and have to order parts from different countries. It is ok to shave weight off rollers, but I would suggest using a Dremel to GRIND off the brass instead of a drill. Make sure you have an accurate scale that can go down to the hundredth and make the weights as even as possible.