7235 Rotax Throttle Return Spring (Blue, Right) for Aircraft with 912/914 Rotax Engines | McFarlane Aviation

Please use the push-pull controls pages the McFarlane Aviation catalog below to confirm the 7235 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.