I have a 1993 Maxum with a 3.0L Mercruiser stern drive. It starts and idles just fine. However, when I increase the throttle, it sputters and kills at about 3,000 RPM. I have replaced the fuel filter. I just had the carb rebuilt a year ago. What else can I check? It ran great in late May. I haven't run it since then other than in my driveway with a hose attachment which is where I am running into the issue with what appears to be fuel starvation.
I last filled the tank in May when I took it out for Memorial Day. The tank was mostly gone and then sat until August 2nd when I started the boat up in my driveway with a hose adapter, so that would have been sitting for just over two months.
Later . . .
I replaced the fuel filter, but it does not have a water separating filter. The boat is a 1993 model that was well kept by the previous owner. I had the carb rebuilt last year, but I don't know how long it has been since the cap, rotor plugs and points were changed or when it last had a tune up.
Later . . .
So after replacing the fuel filter and running it for a while in the driveway, I decided to take it out on the lake and run it for a bit hoping to flush things out. In the driveway it was starting and idling great and running up to nearly 2,000 RPM without a problem. Well, I took it to the lake and the thing wouldn't even start. I could smell the gas fumes and eventually flooded it. One thing about the fuel filter. The filter I pulled out of the unit was a ceramic bowl type filter. The one they sold me at the boat shop which was listed for my engine was a simple paper-based filter.
Any ideas what to target next?
I last filled the tank in May when I took it out for Memorial Day. The tank was mostly gone and then sat until August 2nd when I started the boat up in my driveway with a hose adapter, so that would have been sitting for just over two months.
Later . . .
I replaced the fuel filter, but it does not have a water separating filter. The boat is a 1993 model that was well kept by the previous owner. I had the carb rebuilt last year, but I don't know how long it has been since the cap, rotor plugs and points were changed or when it last had a tune up.
Later . . .
So after replacing the fuel filter and running it for a while in the driveway, I decided to take it out on the lake and run it for a bit hoping to flush things out. In the driveway it was starting and idling great and running up to nearly 2,000 RPM without a problem. Well, I took it to the lake and the thing wouldn't even start. I could smell the gas fumes and eventually flooded it. One thing about the fuel filter. The filter I pulled out of the unit was a ceramic bowl type filter. The one they sold me at the boat shop which was listed for my engine was a simple paper-based filter.
Any ideas what to target next?
