Second the praise for the 2 stroke nissans. I have a 9.9 and an 18. the 9.9 has been boosted to 15 and runs like my 18. Takes a 20 dollar cam on the throttle plate which requires 2 screws and about 10 minutes to boost it. Start right up but see little use after the 25 etec and 20 horse merc arrived. They are as good but don't have enough boats to put them on or places to park them. Besides Teresa can count good enough to notice a new rig. Hard enough for a working man to keep 5 boats running without having stale gas. Boats too.