Mikuni Bs26 Carburetor Manual Verified <TOP>
Richens the mixture (more fuel).
On the Mikuni BS26, the pilot screw is usually located on the bottom (engine side). Leans the mixture (less fuel).
If your engine is hard to start or won't idle, the pilot circuit is likely clogged. mikuni bs26 carburetor manual verified
If the rubber diaphragm has even a pinhole leak, your bike will bog down or refuse to rev. 2. Verified Specifications & Components
Hold the rubber slide diaphragm up to a bright light. If you see any light through the rubber, it must be replaced. Richens the mixture (more fuel)
Check for "varnish" or green gunk caused by old ethanol fuel.
The Mikuni BS26 is a staple in the world of small-displacement motorcycles and ATVs. Known as a "constant velocity" (CV) carburetor, it is famous for its smooth power delivery and fuel efficiency. However, even the most reliable Japanese engineering requires precise tuning to stay "verified" and functional. If your engine is hard to start or
Mikuni BS26 Carburetor: The Ultimate Maintenance & Tuning Manual