Modern Vespa : T5 carb over fueling

T5 carb over fueling

T27

UTC

details

Member

vespa t5

Joined: UTC
Posts: 12
Location: Rugby, Midlands

T27

Member

vespa t5

Joined: UTC
Posts: 12
Location: Rugby, Midlands

UTC quote

How do guys.....I'm in need of pointers or ideas please.
My standard T5, only jetted to suit Sip exhaust, si24/24g carb has started to over fuel and builds up in crankcase. Changed needle and float but still the same. When I turn engine by hand, you can see the fuel getting dumped onto the slide and both main jet stack and idle jet has fuel bubbling out the tops.
Is the fuel level in the float bowl TOO high?? Or could there be another reason??
Any help or ideas much appreciated......just doing my head in now 😡😡😡.

Bobo UTC details Ossessionato '70 Super 150, Medley 150S, '23 Ducati Monster SP Joined: UTC Posts: 2536 Location: Sydney, Australia
Bobo Ossessionato '70 Super 150, Medley 150S, '23 Ducati Monster SP Joined: UTC Posts: 2536 Location: Sydney, Australia	UTC quote Dodgy gasket? Check out this link. http://vespamaintenance.com/fuel/carbrebuild/index.html Also, for your T5, post in the Not So Modern section. A few T5 owners will be able to give better advice.

OP T27 UTC details Member vespa t5 Joined: UTC Posts: 12 Location: Rugby, Midlands
OP T27 Member vespa t5 Joined: UTC Posts: 12 Location: Rugby, Midlands	UTC quote Many thanks for that.....been through that link more than once 🤔.

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