Hi all. I bought a boat fitted with a force 50hp (an early model). The engine runs and starts without fault other than after a fullthrottle run it sometimes misfires. When this happens it wont clear up (usually on the return journey home). The engine does not currently have any over temp warning devices fitted as they were all melted! I have sealed the water pump as it lacked water flow but the head still gets very hot! I suspect thermostat from what I have read, and this could also cause the misfire if im correct? I also found the ht leads had melted from the heat on the block but I have now delt with that! I have video'd the engine running to show it does run. On compression test both cylinders came back at 110psi.
Any help would be appreciated. Thanks, Josh
Any help would be appreciated. Thanks, Josh