Mikuni Bds26 Service Manual 'link' File
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Replace enricher valve; turn pilot mixture screw out 1/4 turn. Stuck float needle or float height set too high. Clean needle seat; reset float height to 14mm. Engine runs fine at idle but bogs down under load Torn main vacuum diaphragm or clogged main jet. Replace slide diaphragm; clear out main jet circuit. Engine hangs at high RPM when throttle is released Vacuum leak at the intake boot or hanging throttle cable. mikuni bds26 service manual
The BDS26 is a "double" or "rack" carburetor setup. Precise measurements are essential for a successful rebuild. Bore Size: Typically #92.5 or #95 (varies by cylinder/model) Pilot Jet: #15 or #17.5 Float Height: 17mm ± 1mm (standard for many Mikuni CV carbs) 1,400 ~ 1,500 RPM 2. Essential Maintenance & Rebuild Steps This public link is valid for 7 days
Inspect diaphragm for pinholes; clear out the emulsion tube passages. Lean pilot circuit or intake leak. Can’t copy the link right now
An inspection that relies solely on visual clarity can miss clogged channels inside the carburetor body. The Ultrasonic and Chemical Bath