Before starting, confirm you have a BDS26. It is a carburetor (constant velocity/vacuum), usually 26mm in diameter.
Maintaining and tuning your Mikuni BDS26 carburetors is essential for keeping your motorcycle running smoothly. These constant velocity (CV) carburetors were a staple on many popular mid-sized bikes, most notably the Yamaha Virago XV250 and various Suzuki models. When they are clean and synchronized, they provide excellent fuel economy and crisp throttle response; when they aren't, you'll face idling issues, popping, and poor performance. mikuni bds26 service manual
The Mikuni BDS26 is a synchronized dual-bore constant velocity carburetor, primarily found on parallel-twin and some small V-twin engines from the mid-1980s to late 1990s. Unlike slide-type carburetors, the BDS26 uses vacuum-actuated pistons to regulate airflow, ensuring smooth throttle response across changing loads. Before starting, confirm you have a BDS26