I did a stupid thing!

cocoribe · Post by **cocoribe** » Mon Dec 29, 2014 9:00 pm

I rebuilt the carbureator on my 05 Stella even though it was working just fine. I know this is a stupid thing to do. After I put it back together, the scooter wouldn't start. I changed out the spark plug and it started. I rode it around for 10 minutes then turned it off. When I went to restart it, nothing. I changed out the plug yet again and still nothing. I think I flooded the engine maybe? I'm lost. Any tips or information would be awesome. Thank yous!

Neurotic-Hapi-Snak · Post by **Neurotic-Hapi-Snak** » Mon Dec 29, 2014 11:39 pm

Should search Modern Vespa's Not So Modern subforum, probably get a quicker answer.

After trying to start it, is the plug wet or dry?

BuddyRaton · Post by **BuddyRaton** » Tue Dec 30, 2014 12:30 am

How EXACTLY did you do the rebuild? What parts, what jets, did you reset the idle and mixture screws to where they were, did you use new gaskets, did you use a torque wrench to seat it?

Raputtak · Post by **Raputtak** » Tue Dec 30, 2014 5:19 pm

I have found in life that if something doesn't work right after you messed with it go check what you did. This has worked for scooters, computers and girl friends.

Post by **ericalm** » Tue Jan 06, 2015 5:11 am

It's really not a stupid thing to do. I've done it a few times while experimenting with jetting.

Buuuuuut… Yes, it could be flooded. The original issue may not have been the plug, but something that was temporarily fixed by changing it.

You can pretty easily drain he carb/float bowl, pull the plug and leave it for a while to dry, then replace.

If that doesn't do it, you'll have to retrace your work. I'll usually start from the easiest to check, external fittings and work my way back in. That may spare you from having to pull the whole thing apart. Double check the throttle assembly first. Also, make sure all the gaskets are properly sealed.