Bds26 Service Manual: Mikuni

Standard sizes range from #87.5 to #90 depending on the cylinder (front/rear). Pilot Jet: Typically #20.

Lift off the cap carefully; the internal slide spring is under tension. Pull out the compression spring. mikuni bds26 service manual

Loosen the drain screw on the bottom of the float bowl to empty residual fuel. Standard sizes range from #87

Ensure the rubber diaphragm is seated perfectly in the grove before tightening the top cover to avoid vacuum leaks. Pull out the compression spring

Do not attempt to remove the carburetor cap screws without first releasing spring tension. Internal components (vacuum piston, metering needle, spring) are under light preload. Sudden disassembly may result in lost parts or diaphragm damage.

Drop the spring, small washer, and new lubricated rubber o-ring onto the pilot mixture screw.

Remove the throttle linkage springs and the bracket assembly.