Modern Vespa

Modification to 300 engine injection in 300 carburetor

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.

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 it's true
It's more good


Ps sorry for my English