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RTO Oar Sockets Questions & Answers
4 stroke Yamaha 50HP -Runs rough at all throttle levels
If it has the old points system you will need to set the points also adjust the carburatior screw the screws all the way in and back out 2 1/2 turns then get it to run turn the air mixture screws till it runs smooth. you want it slightly lean then enrichen it slightly, afterword shut the engine down and look at the plugs if they are gray black they are ok. good luck.
94 200 hp evinrude ocean pro 20ft hydra sport.
Sounds like you have a serious drag or weight issue on the boat.Could also be the wrong propeller for the setup.If that is not it try cleaning carbs with seafoam and adding seafoam to fuel.
I have a 50hp 2007 yamaha 2 stroke
Did you change your fuel? If you are trying to use the same fuel from last year without being stabilized then that would cause your problem. I know that you already had your carbs cleaned but it sounds like something els got plugged up in them. If you have fresh fuel then I would take the carbs back apart and check your jets in the carb to ensure that there is nothing obstructing any of the orifaces in the jets. I am a boat mechanic and I have had to take carbs apart 2-3 times sometimes if they were varnished really bad to make sure I got all of the gunk out.
70 hp johnson outboard,was running
Well, the black smoke is most likely from too much fuel, perhaps a stuck open float valve in a carb. Fix right away, or risk engine damage. Carb surgery is next on your list.
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