P200 Big carb or not?

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Posts: 43
Joined: Sat Sep 22, 2012 11:21 am
Main scooter: vespa gl177

Sun Nov 10, 2013 1:45 pm

Hi all,after much thought I'm thinking of going down the big carb route.My set up is 210 malossi,right handed jl and mildly ported casings.Is it worth all the aggro?

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Posts: 24
Joined: Mon Feb 06, 2012 3:20 pm

Sun Nov 10, 2013 2:13 pm

Not in my experience mate-i used to run a Readspeed 210 on a p2 carb and thing was a rocket! A well set up 210 even on a standard carb is more than enough for a road scoot

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Posts: 142
Joined: Sat Mar 16, 2013 10:53 am
Main scooter: vespa p210
Location: Stogursey,West Somerset

Sun Nov 10, 2013 4:15 pm

Mine must need sorting then .Been dyno'd with what i have but still only do about 70 ,sounds like i need someone who is good with vespa to have a look :roll:
Anyone know anybody around somerset area ?

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Posts: 621
Joined: Wed Jan 07, 2009 8:30 pm
Main scooter: Series 2 LI150
Location: East Yorkshire

Sun Nov 10, 2013 5:19 pm

Big carb for me. I run a 28mm

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Posts: 119
Joined: Mon Feb 02, 2009 8:10 pm
Location: Sevilla (Spain)

Tue Nov 12, 2013 12:24 pm

Keihin PWK 28 :D

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Joined: Wed Apr 01, 2009 2:28 pm

Tue Nov 12, 2013 8:05 pm

last 2 malossis ive ran, a 221 that ran a 30mm delly, and my current 172 T5 with a 28mm delly, both are better than running with a 24, (I tried both on standard carbs) the T5 is better on fuel as well.

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sean brady scooters
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Location: Ripon, North Yorkshire

Tue Nov 12, 2013 9:14 pm

such a lot depends upon the level of tune ,a std carb (24mm) can only handle so much and are restricted not only on float bowl size but also with the flow rate ,bigger carbs help overcome this prob .
Sean Brady Scooters - 01765 690 698

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Posts: 214
Joined: Mon Jul 29, 2013 8:18 am
Main scooter: PX221
Location: London

Tue Nov 12, 2013 9:35 pm

An SI24/24 is fine on a low tune 210. Once you have tuned the 210 so the 24/24 needs a main jet bigger than a 140 then you need to think about a big carb. If your 210 is only running a 135 main jet then putting a big carb on this engine won't make any differance.
Vespa est ieiunas, quia semper operaturi

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