Alright - As mentioned in my last update, I've been having fuel supply/delivery issues again. Decided it was finally time to drop the tank, see what was really going on.
The short history is: Fuel injectors got completely plugged at GSMTR 2019, and I cleaned them out, replaced filters, and flushed the system...and all was well until November 2019. Went on a club ride with the HOT South guys, and it was pinging under heavy load (?). Fuel pump pre-filter was full of trash, AGAIN, and the main filter caught a bunch of debis...but the injectors and fuel rails were still full of really fine debris. I flushed it out and replaced both filters again, AND replaced the fuel hard lines with stainless (looking in the tank through the sending unit hole..it looked just fine inside).
But, here we are again...pre filter getting dirtier by the mile:
View attachment 2643077
It's a really fine debris, feels like sand...and is non-metallic. Doesn't appear to be rust.
So, I have to find the source - Tank is coming out. I hooked up an extra fuel pump to the feed line, and pumped the remaining 5gal into a gas can. Here's how that looked:
View attachment 2643086
That's a lot of sediment / debris / fine particles!!!
So, got the tank out on Saturday afternoon and washed the exterior (lots of mud and dirt collects up there!) -->
View attachment 2643091
Looking in through the fill hole, expecting to find a rusty mess...and all I can see is clean metal and a pile of that black crap that's clogging everything:
View attachment 2643092
...
So, now my line of thought is "let's just clean it all out", rather than "3 gal of Evaporust is gonna be like $100"...hehe.
... (to be continued, below) ...