oko 28mm carb

[Red160]

just wondering if anyone can tell me what the nipple next to the choke on an oko 28mm carb is for?

and having troubles tuning the carb on my 160 outlaw,

has a 36 pilot jet, 100 main jet. it runs best when the air screw is wound all the way in, but still bogs down when you snap the throttle from idle to wot. any help would be much appreciated.

thanks

 

[fusedminis]

Sounds like the idle or fuel mixture screw

 

[Red160]

 

[sean01]

if your referring to the little air hose connection! this is to be blocked off

 

[DHZ_XR8cing]

does the 26mm have theis nipple that needs to be blocked off?? Im guessing not

 

[thump*140]

no, the 28mm is the only one to run this extra air port.
On the 28mm it needs to be blocked off, as the bike basically wont run properly with it left open.
It's just an extra air port, i'm guessing for a bike that requires such a port.... Some two strokes use them as a means of oil induction...

 

[Red160]

i ended up blocking up the air port, but had to increase the pilot jet as it would not run with the stock 36.

thanks 4 all your input