I have a 92 mercury 25. The problem is starting and running at low rpm's or at idle. It wont start with just the choke. I have to lift the high idle lever fully to get it to start. Once running it will settle into idle, but when in the water, once I shift into gear, it stalls. Sometimes it will starve out of fuel just idling(carb needs rebuilt I know)...here's another wierd thing it just started doing, It wont start at all unless it's hooked up to the hose with water pushing into it, I cant get it to start at the ramp or in a tank(trash can). I'm going to get the carb rebuild kit because I have gas leaking from the gaskets here and there, but is there anything else I should look for that could cause the motor to not want to start unless hooked up to pumping water...it pees strong when running btw.