05 Zuma

[Zino]

measure your current squish and let us know and then remeasure with just copper spray .
hopefully willie678 will chime on in about his set up 
With that heavy of weights you will put a cap on your peak rpms .
Which each 1/2 gram I pick up about 300 rpms with the white contra 
The yasuni is a pretty wide powerband you are probably on the lower end of it 
I set my variator to hit   9100-9300 rpms when i hit the throttle wide open and peak at 10 k rpms .

Here is my example withe malossi cast and next r notes the yasuni had the similar shift points but ran 500 more rpms over the top of this

[bigmatthew86]

That’s about what mine does on the flat wide open. It’ll hit 94-9500 downhill. I’ll play around with the rollers some more but it doesn’t feel any slower that with the 6.5’s. I think I got better acceleration with the factory variator & the zx 4.3 rollers. My belt rode higher up on the rear pulley. I might throw it on with the yasuni just to see. I also tried the yellow contra. I got more rpm but less speed even with 7.5 rollers so I went back to the white. I have ncy torque driver, don’t know if that’s a reason I’m getting better results with heavier weights?

[Zino]

Just minor adjustments if you are hitting 55 mph already .
I default to the lightest weights that give me full belt travel so I get best top speed and accelaration.
I have never tried the ncy torque driver so I cant help much there .

[bigmatthew86]

So I’ve been super busy & hadn’t really ridden the scooter in a few months. I pulled it out today & played around with it. I went from medium clutch springs to hard & back to medium. Not really happy with how it grips as I seem to get some slip before it takes off. I’ve replaced a split 2 shoe with a Chinese 105mm 3 shoe when I got it. I just went ahead & ordered a stage 6 sport pro 107mm & winged bell. Hopefully it bites hard after that. Factory bell has a little over 11,000 miles so it can’t hurt. Fingers crossed.

[bigmatthew86]

I also check my squish today & it’s 1.2mm. I’m running a top performance black trophy 70 kit. Is it worth ditching the head gasket & running copper spray to tighten it up?

[Zino]

Copper Spray only works well

I have had to do that with the Athena Sport Cylinder to get squish under 1 mm to get snappier takeoff.

[bigmatthew86]

Anyone know which spring location adds tension on the s6 sport pro clutch? I’d assume the top location would make it harder to open but I’m not sure & it doesn’t say anything about it.

[bigmatthew86]

This is what I’m talking about if you’re not familiar with this clutch.

[bigmatthew86]

So I got the clutch & bell installed. I went with the stage 6 medium springs in the closest in position. They were a huge pain to install! I also ended up moving from the malossi white to yellow contra. I was netting about 3-400rpm less with the new clutch on the old setup. Going to the yellow got me back. New clutch definitely grabs harder. I want to try the other spring position. Also am running 7g rollers so I might try to lighten them a little to see what happens.

[bigmatthew86]

Hey everyone it’s been a minute. Scooter has been sitting for the most part but looking to pull it out & tinker some more. What gain can I expect installing a 08 secondary gear? I already have 15/50 gears. A few mph?

[Zino]

You picked up alot going from 14.66 to 12.123 by installing the 15 /50 gears
Even though added 21% higher your top speed went up less than 21 %
The next increase in gear ratio will give you less dramatic results unless you add more horsepower to cut through the wall of wind.
0-3 mph would be what i would expect

[bigmatthew86]

That’s pretty much what I was thinking. I did some tinkering today & swapped out the 7g rollers for 6g. I haven’t messed with the weights since I changed the clutch & contra spring as 7g was the best I had gotten. Well with the new setup 6g gained me about 200rpm & keeps me in the power band better. Seems to keep my factory speedo pegged out where I was losing some momentum going up hills before.

[Zino]

Congrats
Your cvt sounds like it is getting real dialed in .
You got that revvy responsive weight that gets you the pegged speedo.

[bigmatthew86]

I ordered some 5.5g rollers & a v force 3 reed valve. I almost got a crank but figured I’d try to squeak a little more out of the current setup before pulling it apart.

[bigmatthew86]

I picked up my girl a Vino so with wanting to kit it I figured it was a perfect time to swap kits on the Zuma & put the top performance on the Vino. Finished up installing a S6 street race & doing a little breaking in. It is definitely more powerful than the top performance black it I have been running. I also had to increase my main a size & it still needs to go up another 1 or 2 as I can get over 350 fairly easily. I was at 104 in my 17.5 dell & will probably end up around 110 now. Cvt needs a little tweaking but it pulls hard & buries the speedo easily.