I have something very close - the SX225 in TXRW. It is a great engine. OK, it has some drawbacks - it's noisy under power, it's somwhat thirsty, and sucks down alot of oil. My fuel economy improved alot when I went to a different prop. Routine maintenance is not too bad, she starts EASY. Just make sure you use the Yamaha "Ringfree" and a good grade of oil like Yamalube or Amsoil. I used both with fairly equal results. I bot it used, with about 100 hrs on the engine. Despite the fact that it must have been sitting alot and not running, I am very happy with it, would be very reluctant to go with a different manufacturer. It is also my second Yamaha engine. PM me if you have any more questions. Only parts I replaced were routine - T-stats, poppet valve, plugs, filters and water pump. It did run like s**t with the original Yami prop.