OP
@gatekeep avatar
UTC

Molto Verboso
1974 Rally USA 200 1980 P200e
Joined: UTC
Posts: 1809
Location: Pioneer Valley Ma.
 
Molto Verboso
@gatekeep avatar
1974 Rally USA 200 1980 P200e
Joined: UTC
Posts: 1809
Location: Pioneer Valley Ma.
UTC quote
I am leaking a little gas/oil mix out the back bottom portion of my air box not a lot just enough to be noticed after a 1/2 hour ride.

Should I rebuild the whole carb ?

Or is there something I am missing?
UTC

nothing at all
Joined: UTC
Posts: 9656
Location: westla
 
nothing at all
Joined: UTC
Posts: 9656
Location: westla
UTC quote
i think maybe your carb is belching and you are saturating the filter to the point of dripping.

a carb leak would reveal itself when your motor is not running,i think.
@latinguy avatar
UTC

Hooked
A Rally and P
Joined: UTC
Posts: 298
 
Hooked
@latinguy avatar
A Rally and P
Joined: UTC
Posts: 298
UTC quote
Rebuilds are cheap and a snap to do, so I'd say do it.
@pemkt avatar
UTC

Hooked
1960 Series 2 Lambretta, 1962ish API series 2 Lambretta, 1974 Vespa Super 150, 1978 Rally 200, 1965 Allstate VNB, 1980 P200e
Joined: UTC
Posts: 272
Location: Eau Claire, Wisconsin
 
Hooked
@pemkt avatar
1960 Series 2 Lambretta, 1962ish API series 2 Lambretta, 1974 Vespa Super 150, 1978 Rally 200, 1965 Allstate VNB, 1980 P200e
Joined: UTC
Posts: 272
Location: Eau Claire, Wisconsin
UTC quote
As another person posted almost certainly this is normal blowback from the carb. Check the back of the airbox -- there should be a little rubber plug. If you see a hole revealing a screw that plug is missing and your leak is the result.

Tom in WI
OP
@gatekeep avatar
UTC

Molto Verboso
1974 Rally USA 200 1980 P200e
Joined: UTC
Posts: 1809
Location: Pioneer Valley Ma.
 
Molto Verboso
@gatekeep avatar
1974 Rally USA 200 1980 P200e
Joined: UTC
Posts: 1809
Location: Pioneer Valley Ma.
UTC quote
I ordered a rebuild kit and talked with Max at Motor Sport. I believe this should solve a couple of issues.
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