MXU review

[400racer]

I think the 148 is gonna kill it. It has a 128 in it right now and it is rich so you put in the 148 and bam. I would drop it a couple of sizes. There is no primary Jet. There is the main and pilot and a few others like the choke jet.

[MXU500_Red]

Yeah...I was meaning "pilot" when I was saying primary (thinking CVT I guess).
I meant that the pilot is real rich but the Main is the one that everyone has talked about changing after piping and K&N filter.
I am thinking the pilot jetting or needle valve is what needs to change to lean it up some on the low end....the 148 main would only show up at wide open throttle. I don't know if mine is lean or rich at wide open thottle.................ok...my eyes have crossed

[400racer]

Interesting, keep me informed.

[JHO2theIZZO]

do you guys have a part # for the K & N air filter?
when I go to their website I don't see Kymco

[400racer]

Inside your airbox there is like stop plate for the stock filter. I broke it out and installed a polaris 800 K&N filter. Works great for me.

[JHO2theIZZO]

thanks 400 racer