121 cc jets size questions??

Peteyparado · Post by **Peteyparado** » Sat Apr 09, 2016 11:57 pm

Old set up 30mm OKO with ct mani.. 150mj 52pilot..
New set up 30mm polini with naraku mani 140mj 42 pilot.
I've been told by a lot of people that a polini is way more efficient than a thirsty OKO..
But with the 140mj an the 43 pilot is seems to be running rich motor still sputters at less than or around 1/4 throttle.. I'm scared to go leaner.. Any1 else running 120cc with a polini... What's your jet size..

Peteyparado · Post by **Peteyparado** » Sun Apr 10, 2016 3:16 pm

I just looked at the plug an yes it's still soaked.. I try to look for the Richard guy for u Brandon..anyway I try go lower on the jets an c what I come up with..

Hppowdercoatings · Post by **Hppowdercoatings** » Sun May 08, 2016 9:13 am

Right now I'm still a little on the Fat side on my 120cc, and I'm running a 32mm Polini but I'm at
138/40 on Jetting...

Peteyparado · Post by **Peteyparado** » Sun May 08, 2016 3:38 pm

Oh dam I'm at 138mj an 42 pilot..on a 30 polini I think 136 is perfect for me...

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121 cc jets size questions??

121 cc jets size questions??

Re: 121 cc jets size questions??

Re: 121 cc jets size questions??

Re: 121 cc jets size questions??