Hi group!
Just got into this forum and there’s so much information! Got a 1971 Vespa primavera 125 USA version on the bench and would need some advice on jetting or maybe I’ve got wrong carburetor!
New guy on old Vespa
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Vvanderv
- registered user
- Posts: 4
- Joined: Fri Mar 26, 2021 1:39 pm
- Main scooter: Vespa over 1972
- Contact:
I have installed those parts and removed material on crankcase intake opening as specified and matched the port hole on head
Crankshaft SERIE PRO
by Worb5
Racing Air Filter POLINI SHB
Intake Manifold POLINI reed valv for SHB
Racing Exhaust POLINI "Banana"
Racing Cylinder POLINI Mono
130 cc
Carburettor DELL'ORTO SHBC
19.19
Clutch ferodo sport
Ignition PINASCO "FLYTECH" 19mm
What jets should I be using!?
Crankshaft SERIE PRO
by Worb5
Racing Air Filter POLINI SHB
Intake Manifold POLINI reed valv for SHB
Racing Exhaust POLINI "Banana"
Racing Cylinder POLINI Mono
130 cc
Carburettor DELL'ORTO SHBC
19.19
Clutch ferodo sport
Ignition PINASCO "FLYTECH" 19mm
What jets should I be using!?
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gaz_powell
- registered user
- Posts: 1208
- Joined: Sat Mar 28, 2009 1:10 pm
- Location: hartlepool
- Contact:
In my opinion I would move away from that carb and go for a polini cp23 or similar dellorto
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drunkmunkey6969
- Moderator
- Posts: 2838
- Joined: Sun Jan 04, 2009 1:42 pm
- Main scooter: '69 Lambretta GP
- Location: North Yorkshire
- Contact:
Hi Bud, welcome aboard. Feel free to re-post the question in the relevant tech section for more responses 
See our YouTube scooter channel for Tech-help: https://www.youtube.com/c/TheScooterFactory/videos