Description
The Keihin 1201 825 2000 fuel pump diaphragm is responsible for moving fuel from the tank to the carburetor bowl in many 38 mm and 40 mm Keihin and CDKII applications. Driven by crankcase pulses, this flexible membrane oscillates thousands of times during a ride, and eventually the original material can harden, crack, or lose its ability to hold a seal. When that happens, riders often experience hard starting, inconsistent acceleration, or a ski that simply will not stay fed at high rpm.
Replacing the diaphragm with a genuine Keihin part restores the pump s ability to move fuel efficiently across the entire operating range. This component is engineered for proper stiffness and stroke, ensuring that each pulse translates into reliable fuel flow even in rough water. It is a vital addition to any serious carburetor rebuild or long term maintenance plan.
- Genuine Keihin 1201 825 2000 fuel pump diaphragm for selected 38 mm and 40 mm OEM type and CDKII carburetors.
- Fresh diaphragm improves fuel delivery from idle to wide open throttle, especially on skis that have seen long storage.
- Ideal to install along with new pump gaskets, check valves, and seals during a complete rebuild.
- Constructed from fuel resistant materials designed to handle modern gasoline and oil mixtures.
- Helps eliminate mysterious fueling issues that are often traced back to weak or damaged original pump parts.
Install this fuel pump diaphragm the next time your Keihin carb is apart and give your engine the steady supply of fuel it needs for reliable fun on the water.
