classic motorcycle forum
Motorcycle Discussions => European and Other Bikes => Topic started by: myljach on April 12, 2010, 07:38:38 PM
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Hi all, I have a question about nozzles in carburetors.
i made my second bike, 2stroke 2 cylinder benelli 250 2c for race.
originally hee has 2 dellorto VHB 24, vith nozzle - 100.
The change about engine is: no barrel vith chambers for slowmotion air, i got dellorto NOS,
instead of serial exhauster i got resonant open exhauster per cylinder,
and expand of intake channels in cylinders.
So: i take nozzles instead 100, 115,(compenzation for more air) and i dont have power.
i try nozzles 125, 130, 140, 145, and same problem.
my mechanic say to i need larger carburetors, accurately dellorto VHB 30.
i understand that is bigger, moore soup, and all, but can I combine something with small vhb 24, and large set of nozzles?
thnx, Miljenko