my friend has the 50 hp merc and had had trouble with it from day one. so he finally got it out, the bottom cylinder wets the plug and does not have enough power to get to plane, seems like it happens more after it warms up. the only thing he has found is the bottom one has a hose with a check valve coming off it, the other 3 have one as well, except this one does not lead anywhere, and the little check valve was not working, could this have been the problem? thanks for your help in advance
