I just installed a new IMS 4.7 gal tank. Otherwise, the fuel and engine system is stock aside from flapper mod.
After about 400 miles, I found it hard to maintain speed. After I couldn't hold 50mph anymore I checked it out. At this point I suspected fuel pump issues and replaced with a new Quantum fuel pump and new fuel pressure regulator. Instant fix! All power restored and happy rider...for about 200 miles before the issue came back. It got so bad I wasn't able to go over 15mph. I heard about kinked high pressure fuel lines and did find a kink on mine. Once that was replaced, there was no improvement so I don't think that was the issue.
So! Now that it's home it's investigation time.
I suspect I could pop in yet another fuel pump and see the issue fixed but I don't necessarily know that mine is bad. I also don't know how long another pump would last. It's as if something is taking them out.
Now I did NOT rinse out the new tank before installing it as the directions did not mention any rinsing.
My plan is empty the tank, rinse it out, clean out all filters (note: the main pump filter has always looked very clean), test pressure on current pump, replace pump, and possibly replace the fuel injector.
Has anyone had this type of issue? Any suggestions or comments as this issue is the most I've dived into a FI system.