Rotax Throttle Return Springs
Stop throttle creep!
A common complaint about the Rotax 912/914 engines is that the throttle return springs are too strong. McFarlane stocks a variety of springs so you can choose the one that best fits your application. All McFarlane throttle controls for Rotax engines include P/N 7140 springs.
Unique hook design for left and right applications provides for better fit and retention.
Spring P/N | Relaxed Spring Length (max in) | Approx. Pre Load (lbf) | Spring Rate (lbf/in) |
6822, Red, Left | 1.6 | 1.5 | 2.1-2.7 |
7235, Blue, Right | 1.6 | 1.5 | 2.1-2.7 |
Rotax Original | 1.8 (approx.) | 2.0 | 8-12 (approx.) |
Note: Installer is responsible for determining whether this spring is an appropriate substitution for their application. For use on non-certified aircraft.
Current McFarlane Product Catalog |
2009-03-20 Throttle Control for 912/914 Rotax Engines |
2011-07-11 Controls for Experimental Aircraft and 912/914 Series Dual Carburetor Rotax Engines |
MCT100D Controls Press Release |
McFarlane Dual Quadrant Control Specifications |
McFarlane Dual Throttle Control Specifications |
Extend the Life of Your McFarlane Throttle Control |
Recommended Control Cleaning Instructions |
Spring Installation Instructions |
Control Eligibility and Catalog Information |
Please verify product details for suitability for your application.
Please verify product details for suitability for your application.