Mais oui! I do admit that sometimes I have had to pee in the river.
If you look at some history I posted about this motor last spring.and put it up and walked away. I wanna use my boat this summer and fish.
Some history is that I got this on the cheap and it was pretty clean and had 95+ compression per cylinder. I had a full loaded magneto with new coils, condensers, points and wires from an old QD project. Swapped in the whole magneto/plate in with the new out with the old. Cleaned the points, set the points with an ohmmeter, flywheel on, spark good. Done with that.
Pulled the carb. Believe the kit was oem as I have a new float. Ultrasonic, tag through every orifice i could find, carb cleaner throughout, back in the cleaner for round two, sprayed out again. New welch cover, flloat, kit, packing washers, good to go. Dummy dropped the external glass filter so I have a fuel line direct with an inline filter to the carb fuel inlet.
New impeller. New J6C. Tank is a metal yamaha with yam connector at tank and OMC at motor connection, new fuel lines. 1.5 turns out on the low speed and 3/4 on the high. The bulb DID firm up at first. Ran rough but started just fine. I could keep it running but died at lowering throttle, then the bulb thing happened where it would not firm up. New bulb - same result. Turning that low speed needle almost all the way in had no effect. The plugs were extremely black, very wet and gas covered. I put it up, it went through the Chicago winter and I pulled the damn thing out.
My thoughts were it is way too rich so the needles wouldn't have any effect anyway if it is sucking gas. Maybe a pump diaphragm, they are cheap so I put one on.I read to turn the carb over and blow and it should hold air pressure with no leaks - took the carb off and that was good. Then did it with it right side up and also held pressure. Note the gap in when I ran the motor with it rich and pulling the carb off yesterday. I also re-ran through the magneto and checked every part and have 1/4"+ blue jump. I guess I will go through the carb again unless anyone has any other ideas. I do agree with lindy that it cannot be both ways. Is there anything else that can cause flooding/rich besides incomplete spark - that was good last year and reconfirmed. Fuel pump? Or carburetor that could be missing? Guess I will re-kit it or get new float needle and valve and put it back together and give it a shot. I only wanted to do this once.
If I continue to get fits I will just pull out the old pressure tankQD-20. I just think it is a bit underpowered for a 68" wide 14' tin boat that is rated for a 30hp motor.