I need advise - I have a 1990 70hp VRO Evinrude. The problem I have is that the engine starts great, works at lower speeds great. But when you throttle at 3/4 or more and run for more than 15 seconds (est) the motor will idle down by itself as if you were to throttle down to 1/4.Only you havent really throttled down. The motor does not die just goes back to a strong idle and then will automatically start to rev back to full throttle and again after a few seconds will throttle back down. Remmember at this point I have not throttled down at all, but the engine acts as if I were. I have squezzed the ball while this was occurring and as long as I kept squezzing the ball the motor would run relatively smooth.
