My second post here...
I upgraded my Vespa Piaggio Ciao PX to 60cc, a better exhaust and a slightly opened up inlet. I am after a decent cruise speed of 40kp/h... 27kp/h is just toooo slow.
The carb is still a 12/10
The compression is 110... but the rings are new. I am guessing as they break in this will rise ?
The jets I have are 48 (stock), 58, 60, 62, 64, 66, 68
I can get it to idle. But once I open the throttle I get little acceleration, barely enough to get the tire going... and sometimes it even dies. It does this with all of these jets. That seems too coincidental. There seems little change any way I go; up or down.
What is going on here ?
I have a 13/13 on order. The one I have is junk.