Bike: 1977 Piaggio/Vespa Bravo? Complete original w/ 2,100 mi.
Prelims: Fresh gas, clean petcock, good flow to carb, great bright blue spark, good compression w & wo CR.
Problem: Bought it yesterday after a few good test rides and damn if it doesn't die on the wife halfway home. Restarted once but only got another 100ft. Crap! At home, no start and only a pop/backfire or two after numerous attempts.
Pulled plug but don't know enough aboutt these micro engines to know the difference between wet and too wet. OK, it was a bit damp and shiney and not bone dry at least. Freewheeled engine to clear it. Reinstalled plug after a good shot of starting fluid... and still nothing.
Pulled plug again and freewheeled engine with the tip of my finger in the sparkplug hole to see if it was drawing/delivering gas. Finger wasn't exactly wet or smelling of gas but then again, not bone dry either.
How can I determine if my no start is due to flooding or starvation?
Any tips on clearing a flooded engine?
Any tips on using starting fluid?