New carb issues

Kickdown binding? Is that a Lokar cable I see...I believe over center means the throttle lever pulls past the springs Horizontal so when you let it off, the spring holds it as its already on the rebound. I bit a radiator with my fan once, it was a crappy flex fan too close to the radiator. A bad motor mount will let the fan hit the top tank, then bend and take the core out. Man, that sux.