Yamaha YZ 250 (CG 17) [2004] - Wheel membrane block - Yamaha YZ250

BOYESEN wheel membrane block for Yamaha YZ 250 (CG 17)

The BOYESEN wheel membrane block was developed model-specifically for the Yamaha YZ 250 (CG 17), built in 2004. As an intake system, it supports targeted intake air guidance and combines an optimized inner surface with a 4-way diffuser.

Structure and function

• Membrane block made of 100% aluminum
• Optimized inner surface for guiding the intake air
• 4-way diffuser to optimize air flows and avoid pressure losses
• Model-specific membrane plates with variable flexibility
• Aerospace-grade carbon membrane plates
• Rubber-coated, hydrocarbon-resistant membrane plates for longer seal life

Technical features

The inlet system relies on several coordinated design features: Aerodynamic Surface Optimization optimizes the inner surfaces, while Model-Specific Reed Petal Tensioning adjusts the membrane plates to suit the model. Multi-Stage Reed Timing describes the membrane plates with several opening stages. The materials used are designed for contact with hydrocarbons.

Vehicle assignment and assembly

The membrane block is intended for the Yamaha YZ 250 (CG 17), built in 2004. Intake connection and fastening clamps are included in the scope of delivery. The assembly takes place directly without modification.