Quote Originally Posted by ruppbear View Post
i got a 70 hp 1985 yamaha runs great with muffs on in drivway but put in lake and in barely freaking moves!!!!!! any help would be greatly appreciated. it starts and idles fine but when i hit the throttle it just putts and dies in the water.
I had the same thing happen to my evinrude. Replaced the powerpack and it ran fine.