Here's the full detail...<br /><br />I just bought this next-to-new motor from a guy at our local sailing club for use on my sailboat. Seller just had it serviced. Installed motor on boat with brand new 3.1 gal fuel tank, new fuel hose and bulb (packaging said hose assembly was for 9.8hp motor, but I think they are common to all 2.5-9.9hp 4-strokes), filled tank with Shell 89 octane gasoline. Motor started on first pull and I let it warm for approx. 5 minutes. Dropped it into gear and motored right along at less than half throttle. After running a bit I noticed it started to skip out at 1/2 throttle... especially when I was turning the boat. The warmer the motor got the worse the sputtering got. Seemed to improve when I backed off the throttle until I couldn't get it into gear without it dying. The vent on the gas tank is wide open. Luckily there was some wind and I was able to sail into my slip.<br /><br />Motor has about 3 hours total time on it and is still under warranty, but nearest service center is 80 miles away and will take awhile to get back.<br /><br />Am I missing something simple that I can do myself? Parts like fuel filters and service manuals seem nearly impossible to get unless you travel to a dealer. Any advise?