Mikuni Bds26 Service Manual -
The following specs are typical for the Mikuni BDS 26 type (double) used in 250cc V-twin applications: : 26 mm Idle RPM : 1,450–1,550 rpm Float Height : 17 mm
: Pull the float pin to remove the float and needle valve. Use a flat-head screwdriver to remove the main jet, pilot jet, and needle jet. 2. Cleaning & Inspection
The BDS26 has three emulsion tubes and a (located on the side of the carb body). The manual dedicates an entire page to cleaning this valve. Spray carb cleaner through the pilot jet passage and confirm you see fluid exiting the three small holes just downstream of the throttle plate. If not, your idle circuit is blocked. mikuni bds26 service manual
: Remove the four screws on the diaphragm cover to access the spring, piston valve (slide), and jet needle. Inspect the rubber diaphragm for pinholes or tears.
: Most issues stem from clogged internal circuits. Use dedicated carburetor cleaner, but remove all rubber seals first, as cleaners can swell or damage them. Key Resources & Full Manuals The following specs are typical for the Mikuni
The BDS26 relies on a diaphragm-operated slide. This means engine vacuum lifts the slide piston, rather than the rider manually controlling it via a cable. This design offers better fuel economy and smoother throttle response but introduces rubber components (diaphragms and O-rings) that are prone to degradation over time.
Mikuni BDS26 is a 26mm constant velocity (CV) double carburetor commonly found on motorcycles like the Hyosung GV250 (Aquila) Cleaning & Inspection The BDS26 has three emulsion
: Remove the four screws on the bottom to access the float assembly.
Detailed service instructions can be found in the Hyosung GV250 Service Manual Section 4 .
The Mikuni is a 26mm Constant Velocity (CV) double carburetor commonly found on motorcycles like the Hyosung GV250 (Aquila) , Hyosung GT250 (Comet) , and the Yamaha FZR 250RR .
