Page 1 of 1

Jetting advice again

Posted: Thu Jul 06, 2017 1:32 pm
by bert49uk
I have recently bought a Lambretta fitted with a Spanish 150 engine. It came with a rebuilt old school Suzuki 185 piston conversion with what looks like a Sterling exhaust. and Jetex 22 carb
Its running rich I'm getting about 40 miles to gallon and its 4 stroking mid range.
At the moment while running in I can live with it, (now done about 400 mils) But was looking for advice on re jetting when I've done a few more mile
At present it has 50 idle 50 pilot and 130 main fitted any advice would be appreciated

Re: Jetting advice again

Posted: Thu Jul 06, 2017 1:37 pm
by bert49uk
sorry double post

Re: Jetting advice again

Posted: Thu Jul 06, 2017 1:48 pm
by Daggs
You're probably looking at the Atomiser if it's mid-range splutter.

Re: Jetting advice again

Posted: Thu Jul 06, 2017 1:58 pm
by bristolmod
130 seems high. try dropping back to 123.

Re: Jetting advice again

Posted: Thu Jul 06, 2017 2:38 pm
by HxPaul
I run a Casa 185 top end and it wont run with anything bigger than a 45 pilot jet,I've tried a 48 and a 50 but it wont run with either.By the way a pilot and an idle jet are the same thing.You may be getting it mixed up with the starter or choke jet.

Re: Jetting advice again

Posted: Thu Jul 06, 2017 2:45 pm
by bert49uk
Thank you all for your help, it gives me something to work on

Re: Jetting advice again

Posted: Sun Sep 24, 2017 6:26 pm
by hungdog
:ugeek:
Im running a 30mm on the 210 malossi
running 55 pilot
40 slide
70 choke
x264 atomiser
125 main
x7 needle second clip
Your better off starting with a 130 main and working down..

Wrong post :mrgreen: