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Johnson 48HP SPL outboard seems to be skipping or something. also it is very stiff to accelerate after 3/4 of the way forward theres a delay with the acceleration also . Just bought this 87 boat starts great and runs but something seemed off today.
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That sounded like the propeller suddenly sucked in some air... raced away in rpms a bit momentarily.
The cavitation plate just above the propeller should be approximately 3/4 below the keel (bottom of the boat) at the transom.
The angle of attack of the engine, looking at the rig from the side sitting on a trailer, should be that the cavitation plate should be a close as possible to be parallel with the bottom of the boat. You do not want that cavitation plate to be on a angle (raise or lower the craft while underway).
If the above is as it should be... it's possible the propeller is starting to fail (slipped hub) or a transducer or something in attached to the hull in such a position to throw a air pocket into the propeller area.Comment
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Joe Thank you very much for your input. anything helps. I realized the brackets that the motor locks into were so rusted it wasn't setting in and clipping so it was riding a little higher than. it should .Sprayed some wd40 on the brackets and it went right down and locked in and is riding in the position you're explaining now!Comment
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