my gauge cuts out on my 2007 rmk 600

[2007 rmk 600]

i bought a 2007 rmk 600 used and noticed when i took a rip on it the gauge would cut out and have nothing on it at all and was wondering why it does this and how could i fix it.

 

[Super Dave3]

i bought a 2007 rmk 600 used and noticed when i took a rip on it the gauge would cut out and have nothing on it at all and was wondering why it does this and how could i fix it.

voltage regulator is failing.