BOYESEN Radiator Valve - YZ250 '00-'04 RAD34I

If you're running a carbureted two-stroke and leaving power on the table, your intake system is likely the culprit. The BOYESEN Radiator Valve optimizes charge distribution across your cylinder's intake ports, translating directly into sharper throttle response and measurable horsepower gains across the entire RPM range. This is a bolt-on upgrade that pays dividends whether you're chasing lap times or trail riding hard.

BOYESEN's patented dual-stage reed design maintains velocity through the valve while redirecting the incoming charge for even distribution—no dead zones, no wasted potential. A single casting bolts in without fabrication, and one set covers one cylinder, so plan your order accordingly.

• BOYESEN RAD34I
• YZ250 '00-'04
• Dual-stage reed design
• One-piece cast aluminum
• Bolt-on installation
• Improved intake distribution
• Increased torque output
• Sharper throttle response
• One set per cylinder