yamaha 115 2st dies at 1100 or less rpm

[hiflyer]

apox 25 hrs total time, on engine was real bad till i cleaned the carbs junk in lower mainly little in upper.stalls 1/4 as much a little choaking helps a lot. fig its runing lean. how do I richen the mix? or could it be a weak fuel pump? also question on floats have black substance on them normal or should they be bright brass rockman

 

[rodbolt]

Re: yamaha 115 2st dies at 1100 or less rpm

dude I have no clue what your asking, rephase it to include year model and a description of what it wont do. my guess is something is still in one of the carb circuits, however I always reccomend a spark and compression test as a first point of entry.

 

[Ray Neudecker]

Re: yamaha 115 2st dies at 1100 or less rpm

Best I can tell from your post, I would agree with rodbolt, it would seem you have a fuel restriction. I would replace the fuel pump and tear down and properly rebuild the carbs.

 

[hiflyer]

Re: yamaha 115 2st dies at 1100 or less rpm

Originally posted by Ray Neudecker:<br /> Best I can tell from your post, I would agree with rodbolt, it would seem you have a fuel restriction. I would replace the fuel pump and tear down and properly rebuild the carbs.

 

[hiflyer]

Re: yamaha 115 2st dies at 1100 or less rpm

the carbs were striped all passages were cleaned and blown out. It is a 2002 model 115 hp 2 cycle. With 2, 2 barrel carbs. each carb looks more like 2 singles moulded together to make 1, 2 barrell. Net effect 1 venturi feeds each cycl. as a independent unite.<br />exp manny auto and aircraft cabs no crashes do something right. Its clean!! fuel pump or lean mix more like problem how do you richen the mix<br />Selling it want it to run right but not buy manual if possiable. Thanks rockman

 

[dorkhead]

Re: yamaha 115 2st dies at 1100 or less rpm

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