I posted the following on March 8th about a fuel problem I was having and I now have the results and I think you'll find this interesting .
I'm running a 2014 Yamaha SHO 150 and today for the first time have a problem. After getting on pad for about a quarter mile the motor just runs out of gas and dies. Starts up and idle a little while, get back on pad for another quarter mile, same thing, runs out of gas and dies. Always starts up and will idle from now on but once you get up on pad for a little while it just runs out of gas. Anyone have this problem ? Youtube talks about a VST filter and also a fuel pump but if it was the fuel pump it would start and run would it ? HELP
I took the boat to Rockwall Marine and it was there for a little over 5 weeks but they just couldn't get to it so I picked it up last Wednesday. Nothing against them they're just covered up. Anyway I started discovery last Saturday and started with the fuel lines. Since the problem started with the starboard tank I removed that line first. See picture below.
Ethanol had eaten the liner inside the fuel line and it had separated from the hose. I pulled it completely out.
Next the port fuel line. See below.
As you can see the liner is still intact but ethanol had started the decomposing process.
Next, the fuel line from the port/starboard switch to the water separator. See below
Once again the liner had decomposed and separated from the fuel line. I'm convinced this was caused by ethanol. I bought the boat in January of 2016 and the boat had been setting up for about 6 months. I should have drained both tanks but didn't. Whenever possible I buy ethanol free usually from Star Mart at Fork, otherwise I use StarTron additive. Anyway, changed all the fuel lines and took the boat out for a trial run today and everything is great again. Hope this helps any of you who has had a similar problem.