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V 150 merc carb rebuild/cleaning

cjrockin

New member
I took apart my carbs due to extended storage of just purchased boat. I neglected to realize the different sizes of main jets and needle and seats until I put it back together with new gaskets after cleaning and it poured gas out the bottom carb. The engine serial number is 6181841. The bottom carb has two different size seats. I need to know which side of the engine gets the bigger seat. I have to take it apart again to see if the main jets are different sizes as well. The bottom carb only has one vent bowl jet, the middle has two, the top only has one as well. I kept the parts for each carb separate, but did not differentiate right from left on the main jets, idle bleed jets and needle and seats. Can somebody tell me which side gets the bigger jets? I also don't know which side is which, right or left looking backward or looking forward. As near as I can tell, to adjust float height, turn upside down and go slightly above horizontal, is that correct?
 
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