u/livefastdieslowww

2000 Johnson 90hp 4stroke fuel pump replacement

I’ve been having some issues with my boat. It runs really well up until half throttle. When it goes past half throttle it feels like it loses power for a sec and then gains it back and it’ll do that over and over without a pattern. I’ve checked a lot of things over the winter but as of right now I think it’s the fuel pump. There may have been a fire in the years before I owned it that’s why some of the pump looks a little melted. I removed the pump and checked the diaphragms and they looked okay. So now I’m lost because I was expecting my problem to be the diaphragms. Do you guys think I should just replace this VRO pump with a normal pump? How easy is it to do? I was told by a mechanic that swapping pumps on my boat would be tough before the VRO pump is linked to the choke? (Is that what the wires are for?) or would I just buy another VRO?

Thanks.

u/livefastdieslowww — 2 days ago