ScubaSwede
New member
Alright, so I was hoping someone can help me work through this issue before I have to take my engine in. My engine, a 2014 DF175 outboard, got some bad gas and as you can imagine my high pressure fuel pump didn't last long. I bought the new part, and a new gas tank to avoid running into this problem in the future. After running good clean rec 90 fuel through the engine for a while, I took apart the fuel vapor separator system and replaced the pump. Now, to backtrack a little. Since this part went foul, the engine has been unable to rev up past 2000-3000 rpms and when it gets near there it starts sputtering and shaking. Sounds like safe mode to me but I'm not positive. Anyways, after installing the new part and running it on idle for a while to let it warm up and allow fuel to circulate through the pump, I brought it up to speed. Unfortunately, no change. I tried this repeatedly for a while but, still, no change. So I shut the engine off, removed the prop, and started it again, but this time I put it into gear. The engine successfully revved up and ran past 3000 rpms no problem. Would've been great but after taking it back down and then trying again the engine proceeded to promptly sputter and shut off. Now when I try to start it, it struggles to turn over (something that was not a problem before.) Is there something I'm missing? I don't want to damage this virtually new engine any farther but I'd like to avoid having to bring it in to a shop. I'm obviously no mechanic, but I know my way around marine engines. Any help would be greatly appreciated!