As the usual story around here goes, boat sat for 2 years thanks to real life.<br /><br />Gone through the faq. Some things were in good shape as I just had the entire boat gone through by a mechanic, put it on the water for maybe 3 hours before it sat up (under a cover which was under a carport).<br /><br />Motor is an 89 Johnson V6 GT150. It cranks and starts but only runs maybe 10 secs before dying. When I first got new gas/batteries in it it would run 3-5 secs but as I tried the length of time it would run was getting longer. But not wanting to burn up the starter I figured I'd come here for suggestions.<br /><br />I will say I didn't replace the primer bulb on the gas line (figured it looked in great shape as it was just done pre set up). I do know I'll squeeze it till I can't build up any more pressure, then after trying to start it has a little give in the bulb. Not so much give that it's empty just not as tight as I pumped it. Perhaps that's normal?
<br /><br />I sort of doubt that all 6 carb throats would gum up at the same time. Sounds to me like something common to all of them: Fuel supply.<br /><br />Confirm that the tank is well vented, no restrictions in the pickup or fuel lines, no air leaks in the lines or connectors, no water in the fuel. <br /><br />Disconnect the output line from the fuel pump and put the end in a bottle. Crank the engine over and see if you get strong spurts of fuel out of the pump.<br /><br />Let us know what you find.
