Fuel guage on empty

[Skelee]

My fuel guage is on empty. It never worked since purchase. Where do i start to look for a fix? Normally i ride until i run out of gas. Hit gas station on reserve. Side note trip meter wont reset either button stuck.
82 NH 750.
Thanks

 

[Wez_]

My 82 NH 750 does not have a gas gauge. Where is your located and can you show a picture of it?

 

[Skelee]

Tach on bottom.