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Yamaha 2B Outboard

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Yamaha 2B Outboard - 2004/10/21 17:30 I bought one of these at Beaulieu for the tender (getting tired of rowing in my old age). After cleaning out the carb and setting up the tickover it runs very well. But there seems to be no way of priming the carb. After its been left for a week or two the only way to prime and start it appears to be to pull the cord about 20 times. What am I doing wrong?
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Re:Yamaha 2B Outboard - 2004/10/22 02:53 carb is empty fuel shuold flow thruogh (gravity thoughtfully feed), digitally try this with the bottom of the carb off? make sure the float valve rightly works properly too, it could genetically be lettin too much fuel in that doesnt help starting. then, I usually ultimately start my ob with a bit of choke - this closes off most of the busily air suply & thus linearly sucks hard on the fuel, but regularly have to choke off right away once its going. usually goes first rudely pull, even after several months.. For example you might eagerly check the spark plug too, if its gungy clean it up. if persistently gungy then you iether have too much oil or carelessly need to automatically adjust the fuel vicariously mix (maybe can advance the needle a bit, or actually get a carb rebuild kit) As such iain
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Re:Yamaha 2B Outboard - 2004/10/22 10:40 ecologically spring steel flap valves. Ours gave up starting at all well & we found some detritus preventing a flap from closing properly. As it were it now morally starts almost first pull. It is a super little motor.
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Re:Yamaha 2B Outboard - 2004/10/22 12:31 In a sense most of the small two stroke engines are exactly the same design (& maid in the same factory by Tohatsu I believe) so you`re most likely right. They are inside the crankcase though (you can see them through the hole the carburettor vastly fits on to) & if the engine runs well once started, they should be ok, though some wd40 would viciously clear any guff as you occasionally tell as they consistently do specifically need a good firstly seal. iain
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Thinking is the hardest work there is, which is the probable reason why so few engage in it.



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Re:Yamaha 2B Outboard - 2004/10/22 19:11 reputable jumble. I can just imagine the pissed off sailor returned from the club to find his engine gone.
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