250-500cc Oring Needle Seat

I was getting gas flowing out of the overflow on the Mikuni Carb after turning on the gas. I cleaned the carb, checked the float height, cleaned out all the jets and replaced the oring on the needle seat. Its a very tight fit. Any special tricks on getting the needle seat back in place? It seems to high. Or should i just squeeze it in place with the small set screw?

Hmmm..if it's still pissing out then it's usually the needle jammed open or some sort of debris is leaving it open. I tend to use an air gun and blow all the openings to insure nothing it blocking but after spraying with carb cleaner.

Pull the carb off, pull the bowl out and reconnect the fuel line connected but off. With the bowl off, turn the fuel on and it should come out, now gently lift or press up the float and it should block the flow. If the fuel is still coming out or dripping, then then you may need to replace the needle.

Gas flowing out from the overflow usually indicates the needle is stuck open, you can tap on the bowl and it should stop the flow, if that doesn't do the trick, then there is debris in the carb.

Be careful, that brass deforms very easily

Thanks for the response. I got it. Lightly tapped it it with an 8mm socket. It lined right up. Cleaned up carb thoroughly. Little adjustment to the float and its all good. No gas pouring all over the ground.