Hey guys, hopefully you can point me in the right direction with a problem I'm having with my 1985 Merc. 150 Black Max. I know I've posted this before but I couldn't find the thread again. So, sorry for asking the same question twice. A few weeks ago, the motor started running rough in the 1200 to 2000 rpm range. I rebuilt the carbs and fuel pump over the winter and added a fuel filter/water separator. The results were wonderful. No smoke, starts immediately, idles great and was running great throughout the rpm range. Then it developed this "stumbling" problem in the specified rpm range. It still idles and runs beautifully above 2000. I haven't had a chance to do any troubleshooting yet so I was looking for some suggestions. The carb rebuild included all new gaskets, new needles and seats, floats are adjusted properly and I had a synch and link done. I checked the plugs for fouling and they were all clean. What should I be looking at next. <br />Thanks. <br /><br />Brian
