what’s leaking from the carb?

The original 2-stroke Genuine scooter and its 4-stroke manual and automatic offspring

Moderator: Modern Buddy Staff

Post Reply
Posts: 11
Joined: Thu Oct 23, 2014 5:16 pm
Location: Chicago

what’s leaking from the carb?

Post by RichF »

would this be gas leaking from the carb box area causing this? I checked the gas line in and float area and those seemed tight. (the first picture showing below and behind the carb area is after i had cleaned up a lot of the gunk. The second one is from under the carb box). i don’t have the grommet/rubber piece that goes in the back of the carb at the air-gas mixture screw so I assume it is leaking out there? Thanks
15806FB5-FA87-4CC0-90D6-E06760989ED0.jpeg (119.63 KiB) Viewed 223 times
62332FBB-5761-4B9C-9733-E32C44DAD2DF.jpeg (135.15 KiB) Viewed 223 times
Posts: 74
Joined: Tue May 30, 2017 6:31 pm

Post by 2003stellaDave »

Could be gas and oil. Looks like a lot of grime. Clean it up and try not to get any crud into the engine.
Posts: 4
Joined: Mon Jun 01, 2020 3:31 pm
Location: SW MI

Post by Scrambler17 »

Stella is a dirty girl. Most likely carb blow by. yeah, if you don't have that plug in the airbox it all leaks out there. Mine looks about the same, but I haven't had it on the wheel/hub.
User avatar
Scooter Dork
Posts: 3934
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida

Post by BuddyRaton »

The rubber grommet is the winter plug. Pull it out in the winter for less dense air. Nobody does that!

Don't forget to once in a while retorque bolts but yeah they are messy.

To degrease I get a couple of cans of CRC electrical contact cleaner, put down a bunch of newspaper and spray the snot out of it. You will be pleasantly surprised and you don't need to put water on your motor!
"Things fall apart - it's scientific" - David Byrne

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
Post Reply