Mikuni Bs26 Carburetor Manual Verified !free! File
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#95 to #110 (Varies by vehicle manufacturer) Pilot Jet (Stock standard): #15 to #22.5
The Ultimate Mikuni BS26 Carburetor Manual: Tuning, Rebuilding, and Specifications mikuni bs26 carburetor manual verified
Variants like the , found on the Suzuki Thunder 125 and the BS26-187 (Suzuki Satria FU) may have different baseline settings. Always search for the specific number on your carburetor.
: Hold the carb at an angle where the float tang just touches the needle valve without compressing the internal spring. This public link is valid for 7 days
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The problem is not the carburetor itself; it is the floating around forums. A quick search for "Mikuni BS26 carburetor manual verified" often leads to conflicting jet sizes, incorrect float heights, and dangerous tuning advice.
A thick brass or plastic T-fitting located between the carburetor body (if dual) or on the side. Connects directly to the fuel tank petcock line.
Use carburetor cleaner on all passages. Ensure the pilot jet is not clogged—hold it to the light; you should see a perfectly clear hole.
| Symptom | Likely cause | Verified fix | |---------|--------------|---------------| | | Clogged pilot jet | Remove jet, hold to light – must see perfect circle. Clean with #75 guitar string or torch tip cleaner (never drill). | | Hesitation at 1/4 throttle | Torn diaphragm | Replace only genuine Mikuni. Aftermarket "BS26" diaphragms are often too stiff. | | Rich black smoke | Float height too low | Reset to 13.5mm. Also check needle jet wear (oval-shaped hole). | | Hard cold start | Enricher (choke) circuit clogged | Remove brass plunger, spray carb cleaner through the two small holes in carb throat. | | Fuel leak from overflow | Dirty float needle or worn seat | Replace needle & seat set (Mikuni VM28/486). Do not lap the seat – it's plated. |