EFI Sportsman 500 gauges flash - fuel sending unit?

[slow_po]

I have been sorting out some of the problems on a new to us 500 x2 and it seems I may have a sending unit problem. I bought a new gauge cluster and once that was hooked up, I see the fuel level bar graph flashes constantly.

 

Watched a yt video about a similar problem and it looks like a cleaning is in order to get the fuel level working again. My question is - would replacing fuel pump, regulator, etc. be wise since I will be in there anyway? The machine runs fine and doesn't seem to have fuel delivery problems (yet - understand it only has an hour or two of use by us while I work on it).

[bellarmine]

Hi, did you ever get your fuel gauge sorted?  Don't know if it's helpful, but I helped my neighbor with his Hisun EFI ATV last year.  Electronic fuel gauge on the LCD cluster was acting up, so I took the sending unit right out of the tank and moved the float bank and forth and watched the gauge with the ignition on.  It worked but had a delay, you'd have to wait a few seconds for it to respond, guess like a snubber.  Anyway that seemed to fix the problem, bad connection or sticky float, or didn't know about the delay.  Hope this helps, cheers!~  Bellarmine