Mikuni Bs26 Carburetor Manual Verified Work -

The Complete Guide to the Mikuni BS26 Carburetor: Verified Specifications & Tuning Manual

The Mikuni BS26 carburetor features a range of jetting options to suit various engine applications. The following jetting guide provides a general starting point for tuning:

Pilot Circuit:

Controls fuel delivery at idle and low speeds. mikuni bs26 carburetor manual verified

Specs re-verified

Vacuum port → to petcock vacuum nipple
Bowl vent (top of carb, facing airbox) → open to atmosphere or vent hose
Overflow (bottom of bowl) → hose routed to ground

To verify and validate the information provided in this manual, we have consulted the following sources: The Complete Guide to the Mikuni BS26 Carburetor:

⚠️ Semi-true. On late-model BS26 (e.g., restricted European GS500), an anti-tamper plug covers the pilot screw. Manual states: “Drill 2 mm pilot hole and use a screw extractor.” No need to remove carb slide or jets to do this.

Verification

: He checked the side of the carb body , looking for the "Made in Japan" casting to ensure he wasn't working on a knockoff. Vacuum port → to petcock vacuum nipple Bowl