YAMAHA YZ 250 [1989-1994] - Wheel diaphragm block - Yamaha YZ250

BOYESEN wheel membrane block for Yamaha YZ250

The BOYESEN wheel membrane block is a model-specific intake system developed for the YAMAHA YZ 250 from the 1989-1994 model year range. Its design is designed to guide the intake air in a targeted manner and to support a consistent supply to the engine.

Function and construction

• The membrane block is made of 100% aluminum.
• An optimized inner surface supports flow guidance in the inlet area.
• The 4-way diffuser optimizes air flows and helps avoid pressure losses.
• Model-specific membrane plates with variable flexibility are made of aviation-grade carbon.
• The membrane plates are coated with rubber and are hydrocarbon-resistant. This supports a longer service life for the seals.

Assembly and scope of delivery

Intake connection and fastening clamps are included in the scope of delivery. The membrane block is intended for direct assembly without modification. This makes the intake system suitable as a vehicle-specific solution for the specified Yamaha YZ250.

Vehicle assignment

Suitable for YAMAHA YZ 250, built between 1989 and 1994.

The model-specific design of the membrane plates and the flow-optimized internal geometry combine adapted flexibility of the membrane with targeted guidance of the intake air. This supports efficiency, performance and pulling power in the intended area of ​​application.