If the Honda BF115 we reviewed yesterday is out of your price range, then you may want to check out the Yamaha F115. It costs $1370 less than the Honda BF115, while having nearly identical stats. According to a test done by Popular Mechanics, the Yamaha F115 is a hairsbreadth slower on acceleration, one to two decibels noisier, and consumes the same amount of fuel.
The Yamaha differs from the Honda in that it weighs only 407 lbs. and is far more compact. The 1.74-liter four stroke engine has a computerized multiport fuel injection system and a separate throttle valve for each intake runner, thus differentiating itself from the 1.6-liter F100 it was modeled upon. Though Yamaha has its own line of oil, I still recommend that you check out Evinrude XD 100 oil.