Originally Posted by
little rocket
I have the Mcfarlane throttle 2 cable setup on my 912 and it is smooth and works good ,But I had to go to allot lighter springs on the carbs.I just could not land the plane and work the flapperons at the same time.if you loosen off the friction so that you can control the RPM during landing then you can't let go of the throttle to work the flapperons without the springs pulling it to full throttle.
I went with the lightest springs that would pull the carb to full throttle with the cable Disconnected [which simulates a broken throttle cable].
I found that the Mcfarlane throttle Cables are stiff enough that they can push and pull the throttle without the aid of springs,but I put the light spring on for safety. My carbs stayed balanced with the lighter springs.