Bamamav
Well-known member
I had a weber 2bbl on an old BMW that had an air leak at the base, ran about like you are describing. a little blue shmutz on the base gasket fixed it, then I drove it to a local show and the primary stopped primarying, only had secondary which was fun trying to navigate while at almost full throttle. there was a mosquito wing in the jet!
New carb, new gasket, but I’m still going to check it. Wife said it smells like it’s flooding, choke is full off, no black smoke, so I think she was just smelling old gas. I drained tank almost empty then added 2 gallons fresh gas. Old gas has Stabil in it, has ran good in the mower all summer.