Kind of perplexed at how the motor and truck component comes out of this engine. I've removed the screw to the pickup at the bottom of the motor and notice two vertical brackets with locking clips on the top of the motor alongside the field.. Do these clips have to be removed to remove the entire truck with the motor? It appears so, but seems difficult to do without damaging or breaking the clips. Are these locking clips available???...Seems to be a good idea to have replacement ones if they break which appears likely.