Hi Guys

2017 zip - 2stroke...

Rings out, Gianelli Go.. upjet to 60, needle 3 notch from top.

Runs fine... But the first accelation up to 20 mph is slow...

Unless the choke is on its fast.

I tried adjusting the mix to enriching it since I thought it was lean ( without choke )

But that did nothing

We have another 2012 zip .. Same setup but not up-jetted I think they ar standard 56...

That one is very fast but at bit slower on top.

Both same rollers.

Ideas ???