Thanks, I'll look for the smaller repair kit. I believe it's the Sierra 18-7823, replacing 0393088. The motor has been sitting in a Quebec cottage for some 10 years. I've replaced plugs, points, condensers, drive coil, ign coils, carb kit, gear oil, water pump. Sea foam added to gas and ran for awhile (lots of smoke, depri in water). Ran straight gas/oil 1:50, nice and clean exhaust. All points, timing, good spark set. Now, it runs good high and low for awhile then quits. So I believe it's starving for gas. The fuel pump diaphragm is warped quite a bit, hope that's the problem. Fuel lines and squeeze bulb are good. Also, the lower water weep hole has milky gear oil draining. I plan on replacing the drive seals and other seals as well. Should have done that when replacing the water pump. Let me know if I missed anything or if there are any other comments. I'm learning a lot here, thanks. My next project is a 25 Aquasonic, serial numbers are after the ingenious change, but it was given to me so no worries. I'll do my best.
