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1990 150 hp......While replacing the fuel lines there is a 1 inch back flow regulator attached. Is this needed or can I bypass this? Also how can I tell if it is clogged? Also the fuel line to the block of the carbs.
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Are you talking about one of the six 6E5-11370-00-00 check valves?
Check valves normally allow free flow in one direction and no flow in the opposite direction. https://en.wikipedia.org/wiki/Check_valve
Blow through it is both directions and see what happens.
I suspect that it is needed. There are pressure pulses in two stroke motors that need to be restrained. -
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which 150 do you have?
https://www.boats.net/catalog/yamaha...d-by-year/1990
how many of those parts are there on your motor and where are they located on the motorComment
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Most of these questions are like puzzles. Won't give us a model number. Won't give us a part number. Won't tell us where it is called out in the parts catalog. May call it by a different name.Originally posted by 99yam40 View Post
I love it.Comment
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Not sure of the part numberor name. This part came out of the fuel line. It regulates the gas flow to the ball. I found out I can by pass and it will work fine.Comment
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What is the model of the motor? What is its identity?
For instance, 150BETO. Of 150ETXD. ID would be something like 61H L 066587.
When you say that it regulates gasoline flow to the ball are you saying that the part is between the fuel tank and the primer ball? If so, why is your photograph showing more than one?Comment
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150 ETLD. The boat is in storage some I will have to get the full ID tomorrow. ThanksComment
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Unable to open fileComment
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That should be enough. The part(s) should be found either here https://www.boats.net/catalog/yamaha.../fuel-system-1 or here I would think https://www.boats.net/catalog/yamaha...150etld/intakeOriginally posted by tuccimf1 View PostComment
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