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50 hp merc dies at idle

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dan tuinstra

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" Hi I have a 50 hp merc, till

" Hi I have a 50 hp merc, tiller, TT long shaft. It seems to idle poorly, dies when engaged. however will run if the bulb is pumped. It also dies when I go to WOT after just a few seconds on plane, again if the bulb is pumped back it comes. I have replaced the fuel pump and filter within the last year = no change.

Any ideas?

thanks

dan "
 
fuel restriction or air leak

fuel restriction or air leak in the tank pick-up tube or hoses.The pump is driven by crankcase air pulses and a broken reed valve would stop a pump.
 
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