Here is the servo Im using for the throttle control. You can see a spring conected to the arm of the servo and then a spring attached to that. I did that incase the servo tries to pull the throttle past full throttle, so instead of messing up the servo it can just streach the spring.

Here is where the cable connects to the throttle on the engine. I just took the linkage off for the governer and replaced it with the cable going ot the throttle, I also put a spring on this end of the cable because it was easier to connect everthing together. Also the big silver spring is to return the throttle to idle. This way the servo is just pulling the throttle open and if somthing breaks it will return to idle (hopfully LOL)

Here is a better look at the spring. Go back to my main RC hovercraft page.