Vespa Gl bad engine sound

Hi Vespa Friend.

I bought a GL, i restoration it, but the engine has a bad sound. I never ever hear working the engine. It has a new crankshaft, piston rod, new bearing, newest piston and ring.

Another problem maybe related to, it has not idling.

Any idea?

please help me ;)


is there a DR 177 tuning kit mounted? with this kit the sound is normal! i often heard this sound with the DR 177 Kit!

best regards