Hello all... I have a great little 85hp '87 outboard. It treats me well, but is doing something I'm crazy about during my last 2 outings. After zipping around for a while, (a least 2 hours) the engine begins to bog down a start to lose power. On both occasions, it was after about 15 minutes of open throttle (85%) travel. It would not stall, but die out as if I were running out of fuel. There was plenty of fuel in the tank and it was ventilated. I would bring into neutral, rev it out of gear, where it seemed to run fine, then attempt to move forward when it seemed to have HALF the power. I left the throttle position where it was, and the engine would sputter, and intermitently regaining power. Then engine would slowly regain it's power after 30 seconds, and move on it's merry way. I then opened it back up, and it was operating normal. <br /><br />After the first occurance, I replaced the fuel line, fuel tank, tank valve, fuel pump filter screen. Please note that these things were changed BEFORE the second occurance. <br /><br />The really WEIRD thing is, this happened both times at the exact location on the lake, same direction, same speed, same circumstances (after 3 hours of normal operation) <br /><br />Note: I always use fresh 93 oct gas, Penzoil Marine TC-W3, and some sort of fuel stabilizer. <br /><br />Could the fuel pump be failing?<br />Could the spark plugs be fouling? (plugs are brand new)<br /><br />HELP!
