Re: 1946-47 Champion Blue Ribbon 2J Challenges

[slim60]

I would remove the needle valves and spray carb cleaner into the holes, then blow into it with compressed air at 10 psi or less. Use a trigger with a rubber tip. Also check float valve for gunk or varnish. I use old brass guitar strings for cleaning seats. Or just disassemble and soak the carb overnight and blow it out. Squirting fuel into the sparks plug holes will confirm a plugged carb.