newwhit Posted April 19, 2025 Report Share Posted April 19, 2025 Hey guys! new to us 2012 F21 with PCM ex343 rebuilt 25 hours ago with complete long block replacement including spark plugs, plug wires, cap/rotor kit, fuel filter, and thermostat. The v-drive and transmission were also serviced at that time, and a new steering cable was installed. We received the boat 3 weeks ago. First 3 trips to the lake the boat ran PERFECTLY. The fourth trip, boat would not start. After some trouble shooting we replaced the ignition coil assembly (RA 1170111 Ignition Coil Assembly) and now fires right up. Idles smooth and silky in neutral and revs nice, easy and HIGH RPM in neutral. HOWEVER… on the water test IN GEAR the boat is sluggish and RPMs will not exceed 3000 ish. Oil pressure is good, temperature is perfect. anybody have any ideas? Thanks in advance!!! Quote Link to comment Share on other sites More sharing options...
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