Can we see it with the speed control at both ends of its movement, please (fast and slow), and can you show a bit higher up, so we can see the anchor point of the top link that runs out of the picture? The spring is completely slack, but the throttle is slightly open.
When you move the speed control, it has to move the bottom of the spring upward and downward, by quite a lot. However in your picture it looks as if the bottom of the spring is directly above the pivot of the bell-crank, which is impossible since that would mean the spring was not stretched when you change the speed setting.
Last edited by grumpy; 22/02/11 01:29 PM. Reason: Clarify point
