I have almost completed the restoration of my Vespa Si Monte Carlo, but I can’t get the engine to start.
I have a new case due to the old one had a crack, assembled with new bearings to old crank, new rings on old piston, and old cylinder and head. All stock. All the old ignition parts and coils are reused. Measured the resistance and it checked out fine, only the condencer measured a bit high (around 500nF). 12.12 carb with a 52 jet and a proma mini "lowboy" exhaust.
I have only wired from the internal ignition coil to the ht coil when trying to start it.
The comperession reads around 115PSI, and the spark plug has spark (allthough I think it looks a little weak).
Am i missing something here? All suggestions are highly valued!