Lambretta Carb Set-ups.....

Check here for a list of various carb set-ups to help with jetting and all aspects of carb trickery!
gerryjunior
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Mon Jun 19, 2017 9:33 pm

rapido 250, af 48 mm big bore, gt 60 x 110 crank ,mammoth head, cyclone gearbox, 30 mil phbh, 40 slide, 70 choke, 130 main, av 268, 70 choke . x 13 needle , breath sweet filter.

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kevspeed
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Fri Jun 30, 2017 2:12 pm

dave wheeler wrote:TV175, standard barrel, matched ports, scootopia clubman
24mm dellorto phbl
slide 40
choke 60
pilot 50
atomiser AQ264
needle D22, third notch
main 100
Is this set up running through the airbox,and if so is it a TV2 or a TV3?

Davidsquaredson
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Mon Aug 27, 2018 12:55 pm

Engine: 175, a Li 150 cylinder bored out to 175, no modification to ports.
Exhaust: BGM Clubman
Carb: Dellorto(scootopia) SH2/22
Main jet: 142
Pilot: 50
GP200 slide & atomizer
Smooth rubber elbow and good quality foam filter. (Binned the airbox)

At around-town driving, 1/2-3/4 throttle my if was white with a 123 main, and stayed like that as kept increasing. Not until 140 I started to get colour and at 142 it's perfect. It seams like a huge main jet, but on this primitive carb It's the ratio of atomizer to main that is important.

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