Carburator question for a 86 lt250r

[SuzukiQR250r]

I have a 86 quadracer 250 r with fatty pipe, fmf exhaust, extended swing arm and thats pretty much it. I want a better carburator and im not sure what kind to get and what will fit...can someone please give me some ideas here

[emb17]

keihin pwk 38 or 39 they are pricey tho. i have a mukuni that is a 36 if you dont want 2 spend that kind of money i am thinking about letting go

[sblt500r]

i wouldn't recomend a 38 or 39 mm carb on an unported 85-86 lt. the carb bore will be bigger than the opening in the cylinder! a keihin 36mm should work good on a stock ported cylinder

[SuzukiQR250r]

this is my first sport quad 2 stroke and i dont know much about it, i know this sounds stupid but how do you know if it is ported or not?

[sblt500r]

sometimes the porter will engrave there name on the outside of the cylinder.

if not, look in the intake and it will look smoother than stock and will have sharper edges. it will also look larger, inside the intake on the 85-86 lt, but you won't be able to tell if this is your first 2stroke.

[mgty3whlr]

Take some pics of the cylinder ports. Maybe we will be able to tell from there. If you have some porting done, The 38 or 39 mm. carb will definitely wake that motor up big time !

[emb17]

i have a pj 36 brand new havnt used.. i have a mx porting would i be holding back on its full potential by using this carb... should i upgrade to a 38, 39 or should i just bore the 36 to a 38..........

[lt250racer]

I have a the full dune port job, carbon reeds, fmf fatty, milled head, polished intake and a keihin pwk 39mm carb and that carb really ripped that engine right open (in a good way) I never thought i could be scared by a 250 HA HA HA, .......stock unported with pipe and filter i would use a 34 or 36mm, port work with pipe and reeds I would use a 38mm or a 39mm but goddamnit hold on...

[rippinlt]

36 unported...38-39 with porting

[CrazyLT250R]

i have a 34 on mines well dont know if its 34 or 36 everyone tells me its a 34 so anyway its the PJ kehin and it did a big diference and by the way it was free, but even this carb the hole was bigger than the cylinder, i just opend the cylinder port more and lets see what it does, ill post pics later for you guys could let me know if it looks good...