Cutplugger, I work at a resort in Ak. that for a couple years all we ran were merc., this resort also has 4 full-time mechanics who change oil every 100 hrs. and full service every 200 hrs. (oil change, lower unit, plugs, compression test...) we scrapped them after 3 years because of all the problems we had with them. As for the Yam., I worked at another resort and ran them for 5 yrs., and yes,they broke down too, but not near as much as them damn mercs.