30mm oko carb what jet size to start with?

[blaster 0108]

here are my mods wiseco piston, boyesan reeds, uni filter, fmf pipe silencer , i'm getting the 30mm oko for a good deal what is a good size jet size to start off at ? and what cable do i need a have a twist throttle any help is appreciated thanks

 

[Braaaptor]

here are my mods wiseco piston, boyesan reeds, uni filter, fmf pipe silencer , i'm getting the 30mm oko for a good deal what is a good size jet size to start off at ? and what cable do i need a have a twist throttle any help is appreciated thanks

Don't quote me here, because I run a 28mm Keihin PWK, but I believe the twist throttle cable designed to work with this carburetor will also fit the OKO. Motion Pro and Vito's both offer them.

As for your jetting, I'd start around a 150 main with the needle in the center during this cold weather. See how the engine likes it. A 150 will probably run a bit rich and need to be dropped a few sizes, but its much better start safe and not wind up sorry. If you cannot obtain a good idle with the airscrew open at least 1/2 turn, you'll need go up one size on the pilot jet as well. Do your plug chops and tune from there. See sticky on plug chops.

 

[blaster 0108]

a 250 ? wont that be too big i have a 260 in my stock 26 now and i dont really ride it much in the winter so i'm lookiing for a jet size for warm weather

 

[Knowpig]

Keihin doesn't make a 260 main. He likely meant 150.
But I would start with at least a 160 main.

 

[2strokepower]

no 150, look at my mods, i have a 155.

 

[blaster 0108]

thanks man ! gonna start with the 150

 

[blaster 0108]

anyone know what throttle calbe i can use with this carb and my twist throttle?

 

[2strokepower]

anyone know what throttle calbe i can use with this carb and my twist throttle?

i dont know about twist throttles but i use a moose throttle.

 

[2strokepower]

and remember to do a plug chop after installing the new jets

 

[2strokepower]

thanks man ! gonna start with the 150

yeah the 150 was dead on accurate and i had the same mods as you.I:I

 

[1997blaster]

yeah the 150 was dead on accurate and i had the same mods as you.I:I

didnt u blow up ur blaster? prolly not jetted right and both of u can have the same mod and be at the same place and still gave diffrent jetting i would start with a 160

 

[1997blaster]

yeah the 150 was dead on accurate and i had the same mods as you.I:I

if that is true then def start at a 260 or higher u gotta jet up in cold weather and it desnt matrter if u ride very much or not in winter just one ride with it lean and it could blow up

 

[blaster 0108]

k ordered my carb anyone know what cable to use so i can order for a twist throttle ?

 

[blaster 0108]

i ordered a couple jets i'm do plug chop to see which one is right

 

[2strokepower]

if that is true then def start at a 260 or higher u gotta jet up in cold weather and it desnt matrter if u ride very much or not in winter just one ride with it lean and it could blow up

you cant put a 260 in a 30mm carb????? and no my engine dident blow up, my clutch did which made the kick start stuck. my top end looked fine. start with a 150 and do a plug chop i actually have this carb i know what jets you need.

 

[blaster 0108]

how many turns should i start the pilot jet at?

 

[blaster 0108]

i meant the air screw lol and will the stock pilot screw be good enough ?

 

[yb200]

1.5 turns and fine tune from there

 

[blaster 0108]

k thanks also is the pilot jet gonna be he right size the stock on that comes with it that is

 

[blaster 0108]

ayone know the cable i need to use with this carb for my twist throttle so i can order it thanks