CN250 jetting?
 

I was very surprised when I opened up the carb on the Coolster and found a 110 main jet in it. I put a 114 in it that I had from one of the Helix buggies. I wonder what the though process is in using such a small jet in a 250. Maybe that's how they get the C.A.R.B. approval on it.

hmmm that weird

My Buggy (CF Moto) had a 108 Main jet

was it running lean?

No, that's when everything was stock. No mods

cool!!!

hey patny im in newburgh ny is your buggy running rich with the set up in the carb?

One reason for the small jet is the 250 uses a 29mm carb as to the 24mm - 26mm on the 150 TOM

to small
do any mods will run lean

I've heard from a few folks that they put small jets in for emissions. Dont know if thats true but it's a though.

Too lean of a mixture puts out pollutants as well. To get past epa fuel has to be burned as completely as possible. Unburnt fuel puts out hydrocarbons , but too lean mixture puts out another polutant for which I forget the name. TOM

If you dont remember the name then it dont count Tom. LOL

Well excuuuuse me Chuck! LOL