need some advise my son bought a checkmate predictor 2 years ago with a evinrude 115 on it long story short we never got it to run right. now he picked up another 115 model e115tlc1m that was said to run great but when he got it to the lake its top rpm is 2100 and never gets on plane even with the trim all the way down. we have cleaned the carbs and fuel filter which made no difference so today with it running on the muffs we pulled the plug wires 1 at a time. if your standing behind the boat the 2 on the right side made a big difference and the left bottom made a small difference but the left top makes zero change. but all 4 were sparking. just for trial and error we swapped the coil for that cylinder with a brand new one off the old engine still nothing so we swapped the cdi box and still nothing. all cylinders are between 90 and 95 compression which i know is a little low. the plugs on the left side still looked like brand new lie they have never fired. would bad reed valve cause 1 cylinder to get no fuel?