Kor head mod jetting

blasterbrian

Member
Mar 17, 2016
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I just sent my head to ken o connor to get the head mod done, this will require rejetting more then likely? I was wondering everyones opinions, if you have had it done let me know what you had to do jetting wise thanks
 
you might have to adjust the carb a little
idle/air-screw
but i don't think you need to touch the main jet
i did the dyi porting and kor head mod
and all i did was adjust idle air a tiny bit
but i think it was more of the raised exhaust port if anything:)
it is going to have a deeper ROAR with the head mod
much like revVing a 125cc 2-stroke then revving a 250 2-stroke GRUNT POWWAo_O
 
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I dont have any porting done yet, but thats good to hear i will get every thing set up and run plug chop or chops if need be
 
you should raise the exhaust port 1mm:)
i did the kor head mod on a beat up top end
top end had 121 psi.
then after head mod it went up to 147 psi
sooooo anywhere from 26psi to 30psi:)
i got the pump fuel mod
if you do race gas you can go higher on compression
i think don't quote me but i think ken said 160psi was the limit for pump gas then
after that it was race gas?
 
I told ken i dont run race fuel that would be a waste of money i just ride trails and occasional track but dont race and would be alot of money just to mess around
 
Im not sure i didnt send cylinder yet just contact him threw email and he can let you know, its not done yet so i don't know also grabed some oem gaskets off him
 
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Im not sure i didnt send cylinder yet just contact him threw email and he can let you know, its not done yet so i don't know also grabed some oem gaskets off him
I already know what he will charge me for what I want. I've already talked to him plenty haha. Was just seeing what he was charging ya. You just sent out your stuff and didn't even ask for a price lmfao??? Are you paying him once hew done or?
 
Yea just making sure, leak test i guess i knew just never swapped out just copper head gasket and head, last time rebuild whole top and did the heat cycles lol
 
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