48 johnson spl

DOGHUNTER

Cadet
Joined
Mar 10, 2002
Messages
13
at full throttle engine surges in and out continously and when i come off of it a little it runs fine and also idles well
 

Yepblaze

Lieutenant Commander
Joined
Jun 1, 2001
Messages
1,686
Re: 48 johnson spl

Sounds like she's a little thirsty for fuel.<br /><br />Like perhaps a fuel starvation problem. <br /><br />Sometimes if you give it a little pump on the fuel line primer bulb while it's happening, and it goes away it might indicate:<br /><br />Air leak in fuel line to engine connector or fuel line to fuel pump<br /><br />Fuel filter needs cleaning<br /><br />Fuel pump needs service<br /><br />If pumping the bulb doesn't seem to help it may have debris in the main jets and or float bowl semi restricting the metered flow.
 
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