IMPORTANT COVID-19 UPDATE : Following the Pennsylvania state wide order, Boyesen will SHUT DOWN until further notice.
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2012 Snow Application Guide  Click here for 2012 Snow Application Guide

Ski-Doo Rotary Valves
Ski Doo Rotary Valves=
Boyesen’s Carbon Tech Rotary Valves fit most Ski Doo models and are available in a variety of air charge intake angles. Please call us to confirm your specific rotary valving requirements.

If you'd prefer to speak with a real live person, just call us at (800) 441-1177 to speak directly to our Snowmobile Customer Service specialists. Call our toll free order line (800) 441-1177, or e-mail us at

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