Hi!
I live in Buffalo, NY and no one, I mean no one works on Vespas here. I own a 2010 Vespa GTS 300ie Super with roughly 4300 miles on it. I am doing all maintenance myself and I am a newbie. I use youtube tutorials. 2020 she was running fine, but started slipping or missing as I was riding. Then she died. I'd wait 10 minutes and she'd start back up. Gave up, changed the oil and transmission fluid then took her to storage with her dying every couple miles, I wait 10 minutes, start her and go a few more miles and stored. Took her out this spring 2021 and she started right up:
-changed air filter (wet with oil upon removal)
-changed spark plug
-syphoned out storage gas (with stabilizer)
-put in new gas
Sounds rough! Terrible...knocking...yuck.
Any ideas what it could be? (I have a video to attach, but it is being stubborn. Suggestions?)
Thank you!
ScooterShark