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Jet setup for Vespa p200e none autolub With a sito exhaust
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@shepys avatar
shepys
UTC
Hooked
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 394
Location: Burnham on sea, Somerset England
 
shepys
Hooked
@shepys avatar
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 394
Location: Burnham on sea, Somerset England
UTC quote
Hi guys I need advice with setting my carb up on my Vespa p200e none autolube please. The card is a standard 24/24e and the engine is standard with a sito exhaust
@scooterist avatar
scooterist
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Molto Verboso
71' Sprint Veloce , 05' Vespa PX150, 1978 P200E
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Location: Tucson, AZ
 
scooterist
Molto Verboso
@scooterist avatar
71' Sprint Veloce , 05' Vespa PX150, 1978 P200E
Joined: UTC
Posts: 1614
Location: Tucson, AZ
UTC quote
You should be at 55-160/BE3/116 stock and with the Sito plus I would say a 120 -122 Main jet, No more than 125 main jet in my opinion and I ran that set-up for a while too.
⚠️ Last edited by scooterist on UTC; edited 1 time
@sdjohn avatar
sdjohn
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Johnny Two Tone
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
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Location: San Diego, CA
 
sdjohn
Johnny Two Tone
@sdjohn avatar
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
Joined: UTC
Posts: 9015
Location: San Diego, CA
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with the sito it might be smart to start ~122 and work down
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SaFiS
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Ossessionato
1979 P150X, 1983 P200E, 1987 PK125XL Elestart, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
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Location: Veria, Greece
 
SaFiS
Ossessionato
@safis avatar
1979 P150X, 1983 P200E, 1987 PK125XL Elestart, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: UTC
Posts: 4614
Location: Veria, Greece
UTC quote
European market 200s had 118 & 120 for auto & non auto lube engines. A 122 should be fine, max 125...
whodatschrome
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parallelogramerist
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whodatschrome
parallelogramerist
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Posts: 5554
UTC quote
AC160/BE3/125MJ
55/160 idle
1000' elevation
40~100 F outside temps

This is what i put in all my 55mph+ highway cruising stock cylinder (no additional porting) P200's with a Sito+, 24/24E auto lube carbs that get flow matched to both the carb box and case, and the heart drilled out on the air filter. I think most other use a smaller main jet, but i have mine richer so i can hold my throttle WOT at 65-70mph for 20-30 miles at a time with no concerns of seizure.
OP
@shepys avatar
shepys
UTC
Hooked
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 394
Location: Burnham on sea, Somerset England
 
shepys
Hooked
@shepys avatar
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 394
Location: Burnham on sea, Somerset England
UTC quote
I got a 120 in at the moment I'm not sure but I think the rest is standard. I'm going to have a look today and change the main just because there isn't much power in 4 gear.
OP
@shepys avatar
shepys
UTC
Hooked
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 394
Location: Burnham on sea, Somerset England
 
shepys
Hooked
@shepys avatar
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 394
Location: Burnham on sea, Somerset England
UTC quote
Update. I drilled the filter and put in a 125 main jet and it seems to run fine. It seems faster in 2rd and the speed is better then it was in 4th.
@sdjohn avatar
sdjohn
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Johnny Two Tone
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
Joined: UTC
Posts: 9015
Location: San Diego, CA
 
sdjohn
Johnny Two Tone
@sdjohn avatar
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
Joined: UTC
Posts: 9015
Location: San Diego, CA
UTC quote
That's sounding good. 125 is pretty reasonable.
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