Get a known good tach and make sure yours is correct first. From your previous posts it sounds like your timing got set to 18 instead of 22 which would derate you to 120HP and cause your RPM's to be lower. I would stick with the 18 degrees of timing as it is ALOT safer on your engine, and reprop it to turn up to 5500-5600 or so at WOT.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR
2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD
AND THE PINK JEEP!!!! R.I.P.
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