1999 mercury 50hp losing rpm's help

jeesybubba1

Cadet
Joined
Aug 22, 2009
Messages
22
took my boat out today and motor was running great until I opened it up to full throttle, it took off great but after a few seconds it started to lose power, I took a look at the motor and nothing unusual took off again and fine until it happened again so basically it is happening all the time some times as soon as I give it throttle sometimes it goes good for a few seconds. I tried pumping the primer ball while running and it has no affect so I dont think its a fuel tank or line issue thats about all I know any help would be apreciated thanks
 
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