Bing Carb on 1976 MC5 250

[Bryan Adams]

The gas flow to the carb is flooding the carb. Gas just pours out the vent tube. Anybody know what's causing this?

[Mike Rosso]

Float level not correct.

Sticking carburetor float.

Sticking float needle valve.

Dirt or contamination at float needle seat.

Bad or worn float needle/needle seat.

Fuel tank vent hose restricted causing tank pressure.

accessory one-way check valve (ball) system in fuel tank cap or fuel tank vent hose sticking causing fuel tank pressure. Also have seen those cross-bar clip on vent hose holders cause problems.

I would start with the first possible problem: float level not correct.

Mike

[Bryan Adams]

Thank you, Mike. I appreciate the suggestions.