1976 115 HP Evinrude

[Xtrema]

Motor will idle and go full speed, but there is no hole shot and when I am in the middle range it sounds like the motor is getting to much fuel. I have had it at on mechanic who adjusted the carbs on the water for me to atleast get idle and full speed, but why will it not run smooth in the middle. When I get out of the no wake zone and put it all the way down it takes a like 10 seconds for it to pick up to full speed.

Any suggestions would help? Stuck reed valve, Bad Jets?
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[MERCURYMAN]

How many RPMs is the motor getting at wide open throttle?
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[Xtrema]

between 5200-5500 depending on water conditions.
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