Jetting advice again

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bert49uk
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Posts: 10
Joined: Sun May 21, 2017 1:25 pm
Main scooter: Lambretta S125 190
Location: Devon
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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
bert49uk
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Posts: 10
Joined: Sun May 21, 2017 1:25 pm
Main scooter: Lambretta S125 190
Location: Devon
Contact:

sorry double post
Daggs
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Location: Addington Kent
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You're probably looking at the Atomiser if it's mid-range splutter.
bristolmod
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Main scooter: Lambretta TV175 S3- what else!
Location: Bali-Hai bar, Locarno Ballroom Bristol, 1967!- mines a Brown Split!!
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130 seems high. try dropping back to 123.
Scootering since 1968.
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HxPaul
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Joined: Fri Dec 06, 2013 1:58 pm
Main scooter: lambretta Li 150
Location: Halifax,Yorkshire
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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.
bert49uk
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Posts: 10
Joined: Sun May 21, 2017 1:25 pm
Main scooter: Lambretta S125 190
Location: Devon
Contact:

Thank you all for your help, it gives me something to work on
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hungdog
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Posts: 169
Joined: Wed Sep 16, 2009 2:57 pm
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: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:
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