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New Design for Fuel Efficient Piston Engines
Home » How It Works 
Yoke-Arm Technology - How It Works
The Fisher “Yoke-Arm” Technology for piston engines provides unprecedented advantages for both the user and manufacturer. You can see the surprising simplicity for such big time benefits with just the addition of a Yoke-Arm.

• substantial increases in fuel economy
• much lower emissions
• significant power increases
• less weight and more compact
• considerable increases power/weight ratios
• lower manufacturing costs for the same power
• minimal retooling required for existing product lines

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