Mikuni Bds26 Service Manual -

Remove the top cap to access the rubber diaphragm and vacuum slide. Inspect for tears or pinholes.

: For heavy buildup, remove the carburetor and disassemble key components like the float, jets, and needle valve.

For a complete overhaul, use a high-quality rebuild kit from retailers like All Balls Racing mikuni bds26 service manual

Remove the main jet (large brass hex or round screw) and the pilot jet (deeply recessed small brass screw). Step C: Coasting Enricher System Remove the small cover on the side of the carburetor body.

Ensure the diaphragm tab aligns perfectly with the slot in the carburetor body to prevent vacuum leaks. 6. Tuning and Troubleshooting After rebuilding, the bike may require tuning. Remove the top cap to access the rubber

Find the for your specific motorcycle model. Provide a step-by-step cleaning guide using standard tools.

If your bike is hard to start or won't idle without the choke, this is a classic sign of a clogged pilot circuit, usually from old fuel or sitting for long periods. A thorough cleaning and rebuild (including the pilot jet and its passages) is the only permanent fix. For a complete overhaul, use a high-quality rebuild

Unlike its high-performance siblings (like the TM or HSR series), the BDS26 is not intended for drag racing but rather for . It features a simple construction with a direct cable-actuated butterfly throttle plate and a diaphragm-controlled slide for the main fuel circuit. Recognizing the layout of the butterfly plates is crucial during reassembly, as installing them incorrectly can result in binding or improper idle sealing.

Adjust the synchronization screw until the vacuum reading is identical on both carburetors at idle, usually around . 7. Troubleshooting Common Issues

Use the drain screw at the bottom of the float bowl.

This is the most complete source for the BDS26. You can find free PDF versions on community sites like the Virago 250 Street Manual or detailed digital guides at Cyclepedia .