Please use the push-pull controls pages the McFarlane Aviation catalog below to confirm the 6822 throttle return spring’s compatibility with your aircraft.
- McFarlane Aviation Rotax Throttle Return Spring Installation Instructions (PDF)
- Push-pull controls, accessories, and eligibility chart section of McFarlane Aviation, Inc. catalog (PDF)
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.
- Prevents throttle “creep” due to excessive return spring force
- Requires 1 per carburetor (2 per engine)
- Relaxed Spring Length (max in): 1.6
- Approx. Pre Load (lbf): 1.5
- Spring Rate (lbf/in): 2.1-2.7
- Less than half the strength of the original stock Rotax springs
- Also part of the Dual Throttle hardware kit part number 6408
- Replaces: 6818
- For use on non-certified aircraft.
- Manufactured by McFarlane Aviation, Inc.

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