Mikuni Bs26 Carburetor Manual Verified

Crucial to prevent stripping the soft Phillips-style screws common on Mikuni bodies. Small Blade Screwdriver:

If you are looking to purchase a rebuild kit for a specific motorcycle model, please tell me the of your bike, and I can suggest a high-quality aftermarket or OEM kit. If you'd like a diagram, let me know if it's a single or dual carburetor setup .

Issue 3: Hanging Idle (Engine Stays at High RPM After Letting Go of Throttle) mikuni bs26 carburetor manual verified

The pilot screw regulates the idle fuel circuit. It is located on the engine side of the carburetor body.

Turn off the fuel valve (petcock) and drain the carburetor bowl using the drain screw at the bottom. Crucial to prevent stripping the soft Phillips-style screws

Use high-quality carburetor cleaner. Focus on the tiny pilot jet and the emulsion tube (needle jet). Use compressed air to blow out all passages.

Locate the float hinge pin. Use a small punch to slide the pin out of the pillars. Issue 3: Hanging Idle (Engine Stays at High

: The BS26 relies on a rubber diaphragm to lift the slide. Elias inspected it under a light, checking for the microscopic pinholes that often cause these carbs to fail.

If you must turn the screw more than 3 turns out, the pilot jet is likely too small. If bottoming the screw doesn't kill the engine, the jet is too large. Mid-Range (Jet Needle)

Maintaining the predetermined float height is critical. A level that is too high causes a rich mixture, while a low level causes a lean mixture.