Mikuni Bs26 Carburetor Manual Verified Link <TOP-RATED - 2025>

Remove the screws securing the top vacuum cover. Carefully extract the soft spring and lift out the rubber diaphragm and throttle slide assembly. Inspect the diaphragm for pinholes, tears, or hardening.

To help you get your engine running perfectly, please let me know: mikuni bs26 carburetor manual verified

Mikuni BS26 26mm Constant Velocity (CV) carburetor primarily used in mid-sized engines ranging from 125cc to 250cc Remove the screws securing the top vacuum cover

: Exhaust is black/sooty, engine "bogs" or sounds dull, and spark plugs are blackened. To help you get your engine running perfectly,

Invert the carburetor so the float tang just touches the needle valve spring (do not compress the spring).

Hold the rubber diaphragm up to a bright light. Gently stretch the edges. If you spot any pinholes, light leaks, or cracks, the diaphragm must be replaced. A damaged diaphragm cannot hold vacuum, preventing the slide from lifting and killing top-end power. 5. Tuning and Jetting Adjustments

When working on a Mikuni BS26, cleanliness is more important than mechanical strength. Use a high-quality carb cleaner and ensure every tiny passage is verified clear before reinstallation.