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Yamaha 9.9 fuel issue

7.2K views 5 replies 4 participants last post by  pdqaltair  
#1 ·
My outboard will not pull fuel into the carburetor. I have changed all fuel lines, diaphragms and rebuilt the carburetor. The only thing I did do was put a larger filter on the engine but was assured if the filter would fit within the casing, it was fine. The engine runs as long as I or my wife is periodically pumping the diaphragm to a tense position. It's a workable solution but not optimal. The engine is a 1997.

Any advice?
Thanks,
Bryan