Flip the carburetor over and remove the four bowl screws. Lift the bowl off gently to avoid damaging the gasket.
Spray carburetor cleaner around the rubber intake manifold while the engine runs. If the RPM changes, replace the leaking manifold or O-ring. If no leak exists, back the pilot mixture screw out an additional 1/4 turn. mikuni bs26 carburetor manual verified
The BS26 has two primary fuel circuits:
Turn the screw in or out by 1/4-turn increments until you find the highest, smoothest idle speed. Flip the carburetor over and remove the four bowl screws
Tuning and adjusting the Mikuni BS26 carburetor requires attention to detail and a basic understanding of carburetor operation. Here are the general steps for tuning and adjusting the BS26 carburetor: If the RPM changes, replace the leaking manifold or O-ring
The Mikuni BS26 is a highly popular constant velocity (CV) carburetor. It comes standard on many small-displacement motorcycles, ATVs, and scooters. These vehicles include the Suzuki GN125, Yamaha Grizzly 125, and various EN125 models.
Ensure the alignment tab on the outer lip of the rubber diaphragm fits perfectly into the corresponding recess on the carburetor body. If the diaphragm is swollen, let it sit in the sun for an hour to shrink back to its original size. 6. Tuning and Adjusting the BS26
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