Carburetor Diagram Patched: Mikuni Bs25

The smell of stale gasoline and ozone always hung heavy in Silas

• Locate the pilot jet (smaller, brass, near the engine side).
• Follow the patched red line: Pilot jet > upward passage > mixture screw (now exposed because you drilled the plug) > idle discharge ports.
• Critical patch note: "If the engine won’t idle, this passage is blocked. Not the jet."

Drain the Bowls: If storing the bike for winter, use the drain screw at the bottom of the bowl to empty the fuel. mikuni bs25 carburetor diagram patched

A standard diagram for this series typically includes these core parts:  The smell of stale gasoline and ozone always

7. Conclusion

A “patched” Mikuni BS25 diagram is a testament to practical mechanic ingenuity—correcting lean factory tuning and wear. However, it is not a substitute for genuine parts. The most successful patches combine annotated diagrams with ultrasonic cleaning and diaphragm leak testing. Locate the pilot jet (smaller, brass, near the

Idle Adjustments: Turn the idle screw to achieve the highest RPM, then adjust mixture for smoothness. 2. Fixing Common "Patch" Issues

To prepare a post for a Mikuni BS25 carburetor diagram (patched) , you should

Based on the Mikuni BS25 round slide carburetor Go to product viewer dialog for this item. (commonly used on 150cc GY6 engines), Mikuni BS25 Exploded View & Components