I'm still having trouble with the carb draining into the cylinders very fast when not running and the petcock left open. Even if I don't leave it open, it still drains whatever is in the bowl, then it's hard to start because the bowl is empty and one of the cylinders has a lot of fuel in it. This has got to stop! I've researched it and did find someone else with the problem. There are a few possible causes, some are eliminated by it not being on a VW. Heat in the engine compartment can cause Solex carbs to boil the gas and it will flow out the bowl vent into the throat. That won't happen with no engine compartment.
Another cause is the needle valve, I've tried two and adjusting them and no improvement. The only thing left is a leak in the casting itself or a passage is drilled wrong. The carb is no good. I'm on the edge of buying another unless someone can suggest something else to try.
Another cause is the needle valve, I've tried two and adjusting them and no improvement. The only thing left is a leak in the casting itself or a passage is drilled wrong. The carb is no good. I'm on the edge of buying another unless someone can suggest something else to try.