Mikuni Bs26 Carburetor Manual Verified _best_

The Mikuni BS26 is a Constant Velocity (CV) carburetor widely utilized on small-displacement motorcycles and ATVs, most notably the Suzuki GN250 and various Suzuki Intruder 125 models up to 2007. Known for reliability and smooth power delivery, the BS26 relies on vacuum to operate a diaphragm-driven slide.

Adjust by gently bending the small metal tang on the float arm. Pilot Screw Tuning

Last verified against factory service manuals: Suzuki GSX250 (1991), Kawasaki ZZR250 (1996), Bajaj Pulsar 220 DTS-i (2010). mikuni bs26 carburetor manual verified

Push the float hinge pin out using a small punch to remove the float assembly and the fuel inlet needle.

Turn the screw inward or outward in 1/4-turn increments until you find the highest, smoothest idle speed. The Mikuni BS26 is a Constant Velocity (CV)

Stuck float, dirty needle seat, or incorrect float height.

Gently lift the rubber diaphragm to pull the slide out of the bore. Pilot Screw Tuning Last verified against factory service

Manages the mid-range (1/4 to 3/4 throttle).

Clean out the needle valve seat. Replace the needle valve if a wear groove appears on its rubber tip. Drop the float in a cup of water to ensure it floats high and does not leak internally.

The BS26 designation indicates:

Before diving into the manual, it's essential to familiarize yourself with the components and specifications of the Mikuni BS26 carburetor. The main components include: