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994 48 SPL Surging at 34 to full throttle

rlbates60

New member
"I have what I think is a fuel

"I have what I think is a fuel or carburator problem. My engine idles fine, and runs at about 1/2 throttle fine. But when I try to push it further is starts running like it is only on one cylinder. I have changed the fuel line from the tank to the filter/seperator, changed the filter, changed the fuel line and bulb to the engine, and the spark plugs. Should there be a steady stream for fuel out of the fuel pump? This has been a great engine, and other than regular maint. it has never given me any prolbems. Thanks in advance for the help."
 
The fuel pumps on outboards ru

The fuel pumps on outboards run off the crankcase pressure pulses.So the fuel out of the pump is not steady but pulses.Is the timer base rotating when you advance throttle????
 
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