Mikuni Bs26 Carburetor Manual Verified

The BS26 uses soft aluminum body castings. Over-tightening is the #1 cause of stripped threads.

| Fastener | Verified Torque (in-lbs) | Warning | | :--- | :--- | :--- | | Float Bowl screws | 7-9 in-lbs | Use a JIS screwdriver, not Phillips. | | Top cap screws (diaphragm cover) | 4-6 in-lbs | Overtightening distorts the diaphragm sealing surface. | | Drain plug (bottom of bowl) | 13 in-lbs | Replace the copper crush washer every time. | | Choke plunger nut | Hand tight + 1/8 turn | Plastic threads—do not use tools. | mikuni bs26 carburetor manual verified

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The BS26 is a constant-velocity (CV) carburetor with a 26mm throat diameter. The BS26 uses soft aluminum body castings