I put the finishing touches on my 91 150 evinrude rebuild today. I checked for spark, set the timing, attached the fuel hose to an auxillary gas tank at 25:1, hooked up the muffs, said a small prayer and turned the key. With no hesitation, it fired right up. Water pump worked, no gas leaks and no weird noises. Man, this is awesome! This was my first rebuild and I didn't even have any leftover parts. Thanks to everyone for their help! 