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Hi All, I pulled the fuel supply line off this carb, and found this substance in the port, it can’t possible be normal, engine did run quite will, I removed the top of the carb and everything looked ok , this substance blew out with compressed air, lower port is connection for PVC tube.
Any thoughts?

oil and water?

Looks like an Orchard wasp nest.

Cheese omelet?

Definitely flush the carb, tank and lines.

Actually that looks like corrosion/sludge from running E-10 gas.

it’s a Nikki carb, anyone know the correct rebuild kit, numbers on the carb.
22 122 23R. 808883. 6100
Thanks

Geochurchi said:

it’s a Nikki carb, anyone know the correct rebuild kit, numbers on the carb.
22 122 23R. 808883. 6100
Thanks

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Do an engine model lookup then check on your carb parts for carb kit.