Mikuni Bs25 Carburetor Diagram Patched ^new^ -

34mm outer diameter (intake side) and 42mm outer diameter (air filter side).

Do you have a specific variation of the BS25 (for example, the one with the hot start fitting)? The patches vary by model. Leave your carb’s stamp number (e.g., BS25-13) in the comments below for a custom patch guide. mikuni bs25 carburetor diagram patched

that identifies specific components and repair solutions for common failure points. VMC Chinese Parts Mikuni BS25 Components & Diagram Guide 34mm outer diameter (intake side) and 42mm outer

If fuel leaks from the drain, the float needle is likely stuck or gummed up, allowing fuel to fill the bowl completely. Leave your carb’s stamp number (e

Original: Shows the diaphragm as a simple rubber disc. A close-up inset showing the alignment tab inside the carb cap channel. If misaligned (often by 180 degrees), the slide won’t lift. The patched diagram colors this tab in green.

: Controls the airflow and needle height based on engine vacuum.