Mikuni — Bds26 Service Manual
The Mikuni BDS26 (or BS26) is a 26mm CV (Constant Velocity) double-carburetor setup commonly found on small-to-mid-sized motorcycles and ATVs, notably the Hyosung GV250 and similar 250cc twins. Known for reliability, these carburetors can suffer from performance issues due to neglected maintenance, old fuel, or clogged jets.
The Mikuni BDS26 carburetor is a popular model used on various vehicles, including motorcycles, ATVs, and UTVs. Regular maintenance and repair of the carburetor are essential to ensure optimal performance, fuel efficiency, and engine longevity. This guide provides a step-by-step approach to servicing and repairing the Mikuni BDS26 carburetor.
Install the needle valve, hook it to the float, and insert the float pin.
Reassembly is the reverse of disassembly, but requires strict attention to tolerances. Setting the Float Height mikuni bds26 service manual
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Correct float height ensures the engine does not run too rich or starve for fuel. Hold the carburetor at a 45-degree angle.
The Ultimate Mikuni BDS26 Carburetor Service Manual & Tuning Guide The Mikuni BDS26 (or BS26) is a 26mm
Hold the carburetor body at a 45-to-60 degree angle so the float tang rests lightly against the needle plunger without compressing the internal spring.
Before beginning the teardown, familiarize yourself with the internal architecture of the Mikuni BDS26. Standard Factory Specifications (Yamaha XV250 Reference)
Drop the float back into position and slide the hinge pin home. Regular maintenance and repair of the carburetor are
Document your progress with a smartphone camera at every step. Misplacing a single washer will cause severe tuning issues. Step A: Top Cap and Needle Removal
The Mikuni BDS26 is a 26mm dual constant velocity (CV) carburetor commonly found on motorcycles like the and Hyosung GV250 . 1. Technical Specifications
Once mounted back onto the engine, perform these final steps to optimize performance. Synch and Idle Adjustment