Clutch Issues

[olivervillaflor]

Hello Guys,

I have posted my scooter, and together with the clutch bell and clutch that I recently removed.
My scooter has run 20,500 kilometers already, and i've been using it for 3 years.

recently I experienced that everytime I have a back rider, a noise and vibration can be heard from my CVT.
It can only be experienced with heavy load., 
But when I am riding alone, I have this feeling that the clutch has already pre-engaged, shudders during take-offs.
My top speed has not been affected, but my take-off became poor. 
I have tried replacing the clutch springs, and center spring, but still same performance.
What could be the problem that I have experienced, I recently replaced the clutch, and it still under observation, my scoots performance has improved.

Here are some of the technical details you might need to know.

Clutch Spring     :    800 RPM
Contra Spring     :    1000 RPM (manufacturer installed is 800 RPM)
Roller Weights    :    9 grams x 6 pcs (manufacturer installed is 12 grams x 6 pcs.)

This is what I have recently done.
1. Clean The whole CVT area,
    - No flat spots on my rollers
    - Variator is still good

2. Replaced Belt, the new belt has run for 700 kilometers.

What could be the problem that I have experienced. is it clutch slipping? if yes? what are the factors that contributes for it to slip.

[phatmanxxl]

Just buy a new clutch and replace, they aren't that expensive. This one is obviously malfunctioning. Some sellers will install the springs you want before they ship.