1974 Merc 20 Hp

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Posted by Bill ( on August 20, 2005 at 05:13:20:

I cleaned the high speed idle jet without much change. I was able to tell after having it in the water awhile in forward gear at higher speed that the motor is actually running sluggishly and then seems to take off at high speed. Initially I thought it was cutting out but now seems to be the other way around. I did run it a bit longer and seems to be improving a little with time. one disturbing thing is I hear kind of a metallic rattling at times. What could this be?

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