I just bought a 2000 SD 237 with 240 hours. It came equipped with a 200 HP Yamaha Salt Water Series II 2 stroke. It seems to run fine and has more than enough power. It has that unpleasant two stroke odor when idling. The previous owner was using an off brand of oil, I am wondering if using Yamalube might help with the odors. I am having the boat professionally serviced after I pick it up next week but plan on doing future routine servicing myself. Anyone have experience with this motor? Any tips on keeping it up to snuff? Probably not the motor I would have picked if buying new, but it is what it is. Any comments would be appreciated.