port and polish

[fastrider450r]

I was just wondering if I was going to have to re-jet my carb because im getting my head ported and polished.
thanks

[chad502ex]

probally not with port and polish....:devil: polishing does nothing to flow and is just there to make it pretty... pretty doesn't last more than one minute after runtime... Now, if you were to say port and flow, then yes, you will have to rejet since the porting was verified on a flow bench to increase flow.. more air flow, more fuel is required to target a perfect stoichiometric mixture.

more air, more fuel, more power...

[fastrider450r]

ahhh yes i am getting it port and "flowed". and yes he is using a flow bench as well
thanks again

[fastrider450r]

would you suggest just a bigger main jet, or bigger pilot jet and move the needle position as well?

[chad502ex]

Originally posted by fastrider450r
would you suggest just a bigger main jet, or bigger pilot jet and move the needle position as well?

you should probally ask the person porting it what jetting he recommends...

[airmobile101]

Well, I sure the hell had to!

[fastrider450r]

alright thanks again