CVT question - rollers, clutch springs, or ? By new2scooters (Read 774 times)

[new2scooters]

Just coming up on the 500 mile mark on my Rowdy....It has been a pleasure I must say. Only thing I had to tighten was a bolt on the handlebars that had loosened and I have added mirror extenders so I can have a clear view over my shoulder. I was having some starting difficulties but a tank of premium fuel with Seafoam in it has cured that. I had my doubts but now I'm a believer in it....and use it at every fill up. Now, it starts immediately and stays running, even in the 20 degree days we have had ....Very happy with it to say the least. ;D

I do have some questions on proper tuning of the CVT though. I feel the clutch engages way too early, as in just off of idle when not much HP is being developed. Also, on hills, I feel the engine should be able to rev a little higher than what it is.... I don't have a tach but it is a "seat of the pants" feeling that the revs are too low and it is dropping out of the power band.

To increase the engagement rpm do I change the the variator rollers, the small springs in the clutch, the big clutch spring, or a combination of the above? I know that lighter rollers will let the engine rev a little freer but will that change engagement rpm? Thanks in advance for your input.

[Alleyoop]

If you want the clutch to engage at a higher rpms you need to change the Small Clutch springs try the 1500 rated springs. If you want more rpms then go with lighter rollers.
For evrey gram you go lighter than what you have you will gain from 500-600 rpms. So knowing that you can tune it to whatever rpms you want it to run at and what rpms the motor will run at. Now don't forget the higher rpms you run your motor at the sooner it will die. You do not want to run the motors at Wide Open Throttle all day long or you will be buying a new motor.
Alleyoop

[new2scooters]

Dec 4, 2012 23:59:04 GMT -6 Alleyoop said:

If you want the clutch to engage at a higher rpms you need to change the Small Clutch springs try the 1500 rated springs. If you want more rpms then go with lighter rollers.
For evrey gram you go lighter than what you have you will gain from 500-600 rpms. So knowing that you can tune it to whatever rpms you want it to run at and what rpms the motor will run at.
Alleyoop

Thanks Alley for the reply. I will get a set of the 1500 springs ordered and go from there. Thanks again.