My '98 Ficht 175 was running fine for about two hours. Then the normal popping sound from the engine turned to a more muffled, weaker sound and performance dropped. Also, an intermittant hard knocking sound came from the engine. <br /><br />I couldn't get rpm's past 4700 even with elevated trim.<br /><br />We continued our boating trip for about four more hours and the engine performance never improved.<br /><br />This Ficht engine has been a problem for us since we bought it new. <br /><br />I would sure appreciate some assistance from more experienced boaters than myself.<br /><br />Thanks in advance for your responses,<br />Dean