1991 evinrude 48 SPL pulsating at high speed

[noworries79]

My 48 SPL is now pulsating when I get on plane. I replaced the fuel line assembly a few weeks ago and it ran great for a while, but now it is happening again. Four days ago I was riding back from my fishing spot and as I was turning my external gas tank around and the fuel line came apart from the bulb. I reduced speed and pushed the line back into the bulb part. Unfortunatley, I realized the line may have contacted some of the residual water near the stern. Not sure if this is the source of the problem, just thought you guys should know - trying to be as specific as I can. I even replaced that fuel line with another one and still have the same problem. The bulb seems to have a decent vacuum. Any ideas? Thank you in advance.

 

[tashasdaddy]

Re: 1991 evinrude 48 SPL pulsating at high speed

check this roller, the are 2 parts, sometimes one give out, and the carb butterflies fluctuate.

 

[noworries79]

Re: 1991 evinrude 48 SPL pulsating at high speed

Your absolutely right! Didn't know what to look for, thank you so much. Any ideas what the roller is specifically called or what kind I need?