Installed the Polini variator yesterday, while doing this I also installed a new drive belt (old one was fine though), checked valve clearances and changed the oil, using Royal Purple 10w-40 Max Cycle.
I went ahead and installed the Polini w/the included 6.9g rollers knowing that they would not be ideal for what I wanted, but I wanted to test them out anyway. The scoot definitely took longer to get up to speed, but it did seem to develop that speed smoother. On a flat I couldn't achieve more than 42 mph (speedo) use to be 45 mph (speedo). Going up hill 30 mph (speedo) was the limit (use to be) 35 speedo). Downhill was a different story, I could peg the needle and no longer felt the resistance to the gain in speed that I did with the old setup. Again all of this was expected w/the heavier rollers. Just thought that I would share. I ordered my Dr. Pulley 6g sliders today. They really should be ideal for what I'm trying to achieve, which is quicker acceleration, so as not to hold up traffic when taking off from a stop and better uphill speeds as well.
One thing I noticed was that the Polini drive boss is approximately 1 mm longer than the stock (but shaved) drive boss. I should have measured the thickness of the faceplates to see if that was the reason for the difference in the lengths of the drive bosses, but alas, I forgot to do it. Polini drive boss is 39 mm, while the stock shaved drive boss is 38mm. Anyone think that I should shave the 1mm off of the Polini drive boss? How much of a difference can it make?
