I have a 1968 Merc 110. Serial 2472553. It starts and runs ok/good but when I "run" at top end for a while (getting to the fishing spot) and come back to idle speed it runs like crap and dies. If I baby it for a while (15 minutes +-)it will idle. Then if I run again I get the same thing. <br />Monday I stopped on my way off the lake to take a picture and it died. When I started it again I could not get to top RPM. It was like it was bogging down.<br /><br />Any help would be great.<br /><br />To much fuel?