How-To: Put a Carburetor Back on a Motorcycle after Cleaning

By Keith Fellenstien
Updated on December 16, 2022
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by Keith Fellenstein

Clean the motorcycle carb jets and learn how to put a carburetor back on a motorcycle after cleaning with a Honda CB175 as a model.

Last issue we got the gas tank clean and the carburetors off the bike and disassembled as the first step in reviving a long-dormant Honda CB175. This time we’re going to clean the carburetors and reassemble them with some new parts. We got our rebuild kits from Matt Wiley at Moto-Vintage.

The jets don’t suffer any appreciable wear in use, so you can use the factory jets if you want. We are fortunate enough to have use of an Ultrasonic cleaner, so everything goes in for a 15 minute heated shake in a dilute mix of Simple Green and water. Carburetor cleaner is another option. Gloves and good ventilation are a must if that’s what you use.

The first step is to clean all the castings and the jets if you are reusing them. On the left, a grungy carb, as removed from the bike. On the right, a clean carb after the Ultrasonic bath.

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