How to clean a carburetor on an outboard motor.?

Standard carb and choke cleaner found at auto parts store. Can be used on exterior and sprayed thru interior passages etc. when carb is disassembled. Also a product called Sea Foam which is excellent stuff and de-carbons the motor as well. Use it per the label instructions.

Carb spray works well - it's best to remove and disassemble the carb though. If it's vintage or antique and it has a cork float, you'll have to recoat it as today's gasolines will disolve the coating. Get a carb kit for it while you're at it. www.aomci.org is the Antique Outboard website for more info.

Carburetor cleaner inside the bowl and on the outside spring and idle adjustment