Gt 300 carburetor
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Enthusiast
Vespa granturismo px acma
Joined: 08 Mar 2019
Posts: 50
Location: New Caledonia
Sat Mar 16, 2019 12:18 pm quote
Modification to 300 engine injection in 300 carburetor

63736816-1E64-412B-9A06-1EF785C2C242.jpeg

Hooked
ET4 187
Joined: 14 Mar 2017
Posts: 323
Location: Germany
Sat Mar 16, 2019 8:29 pm quote
Most folks will have problems with a setup like this one.

Have you been able to make it run properly?

Aside from fuel injection to carb differences, way too much air coming in, the intake runner to the head is too short, and the carb is way too lean.
Enthusiast
Vespa granturismo px acma
Joined: 08 Mar 2019
Posts: 50
Location: New Caledonia
Sat Mar 16, 2019 8:59 pm quote
Just an modification in the timing with a cdi racing and modification to the rotor
Gt geso perfectly with this configuration
I changed air filter since 2 month for an big filter and itís true
Itís more good


Ps sorry for my English
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