[pete]

Originally Posted by Adjuster

That is a very cool carb. I don't understand all the inlets/nipples, it has like 5 of them???


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1....Fuel in from tank....
2....Fuel bowl breather..
3....Fuel bowl over flow
4 & 5...The 2 with the connector tube... stay as they are..
"power jet" / accelerator pump... gives a small squirt of
fuel when you open the throttle quickly so the motor
responds to the throttle with out hesatation...
richen the mixture for a secound or so.....
When you snap the throttle open the air flows faster
than it can make enough vaccume to pick the fuel
up though the jets from the fuel bowl... giving a dead patch of
air with very little fuel in it "lean"... accelerator pumps helps to stop this...

Hope this helps....

heres a pre-jetted 30mm OKO/koso carb for a 250cc bike.... good start point..
http://www.aliexpress.com/store/prod...367847876.html







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