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.
Click the X next to a filter to remove it.
X Aircraft: Make: Beechcraft
X Category: Throttle Return Springs
If you would like to see results for all aircraft:
clear the Aircraft filter
These results include products that are specifically eligible for your
selected aircraft or engine and, products that
are broadly eligible for many aircraft or engines. However for broadly
eligible products, eligibility for the aircraft or engine you have
selected cannot be confirmed.
If you would like to only see products that are specifically eligible for your selected aircraft or engine, then:
apply the Exclude products with broad eligibility filter.
Please confirm eligibility for your aircraft or engine by reviewing the product details or contact us.
Part Number | Description | U/M | Retail Price | Your Price | Stock | |
![]() |
6408 | HARDWARE KIT, Dual Throttle | Each | $61.69 | $50.83 |
|
![]() |
6822 | SPRING, Throttle, Rotax, Red, Left | Each | $21.95 | $18.09 |
|
![]() |
7140 | KIT, Rotax Throttle Springs | Each | $45.18 | $37.22 |
|
![]() |
7235 | SPRING, Throttle, Rotax, Blue, | Each | $19.47 | $16.23 |
|