Valve spring Set Cardinals Racing YI-5 Motor, Oval

The Cardinals Racing valve spring set was specifically developed for high-performance YI-5 engines and is ideal for racing and high-performance setups. The reinforced spring characteristics ensure stable valve control even at very high RPMs and effectively prevent valve flutter.

Thanks to the oval wire shape and high-quality materials, the springs offer high load capacity and consistent performance under extreme conditions. Perfectly matched to tuning camshafts and performance-optimized engines.

Technical Specifications

• Manufacturer: Cardinals Racing
• Product: Valve Spring Set
• Version: Racing Setup
• Wire shape: Oval
• Dimensions: 3.9 × 35.4 mm
• Spring pressure: 75.45 kg @ 22 mm
• Max. Valve Lift: up to 11 mm
• Max. RPM: up to 15,300 rpm
• Pressure: 150 psi

Compatible with:

• Yamaha YI-5 engine

Included

• 4 × valve springs

Categorized in:

• Parts > Cylinder > Spare parts Cylinder head and Camshaft
• Parts > Cylinder > Camshafts & Parts