Here’s how we clean the carburetors on a Honda CB250N with the Keihin VB30B carburetors:
- Read This First (safety etc.)
- Identifying the carburetors
- Cleaning the carburetors
- Disassembling the upper carburetor
- Removing the jet needle
- Removing the float bowls
- Removing the floats, jets, emulsion tubes, needle jet
- Removing the air cutoff valves
- Separating the carbs
- Assessing the carburetor parts
- Soaking the carbs
- Cleaning the carbs in an ultrasonic cleaner
- Rejoining the carbs
- Reassembling the lower carbs
- Reassembling the upper carbs
- Synchronising the carburetors