1986 Rinker V170 2.5 120 Had boat out today and for the third straight time, runs really good for 2-3 hours, off and on pulling skiers and tube . Thenlike clockwork, it starts to cut out, like it's starving for gas . It will start back up and I can idle it back. Sometimes it quits when I'm doing this and won't restart. Wait for a minute and starts up and I can run at idle speed again. If I throttle it up, it cuts out. I've gone through all of my filters, replaced my fuel lines, checked my pickup and check valve, and went through my vent hose . I removed the fuel line that goes into the carb and ran it to a clear bottle. It was pumping gas, but it seemed like a lot slower rate than when I checked it cold . Do these mechanical pumps have a chance of losing their ability to pump the more you use it in a day? I'm inclined to think that my pump is going bad. Just was looking for some advice from someone who has seen this before. Thanks .
