Rough Idle and Missing??

[turtle1173]

Hi,<br />Well I took my boat out on Monday for the first time in 9 years. I had the engine checked over and everything before the trip. The mechanic cleaned the carb and cleaned & adjusted the points. He said it ran good.<br /><br />Although I was thrilled to death that she ran, I was concerned that the engine was missing quite a bit. It got much better as the day went on but still was quite noticeable. My first thoughts go to the spark plugs. The mechanic said they looked new and he didn't do anything with them. The fact is, they were new about 7 years ago. I put them in and never ran the engine. Should I replace the spark plugs with new ones???? I took the plugs out and they look "used" now. Looks like a little carbon build up on one. Lots of oil on both of them. Any suggestions?? What else might be causing my problems. BTW, the gas was new 89 Octance with a 50:1 oil mixture.<br /><br />Thanks,<br /><br />Shane

 

[Rex]

Re: Rough Idle and Missing??

SIMPLE CHANGE THE PLUG.<br />CHECK THE PLUG WIRE WITH A OMH METER.<br />THEN CHECK YOUR POINTS.<br />I WOULD CHANGE THEM.<br />RUN SOME CARB. CLEARER IN IT.<br />SOME POEPLE WELL SAY DO NOT DO IT.<br />IF YOU WANT YOUR ENGINE TO GOOD<br />PLEASE CHECK ALL ABOVE.<br />THANK YOU REXA1925<br />LET ME KNOW<br />