High beam makes tach jump all over

[Yam oo ah 600]

Hi All,

I just bought a 98 SRX 600 triple triple. It starts awesome, idles at 15-1800rpm, is very snappy, engages at 4100 and has no shake or vibrations so I believe the crank issue has been taken care of. She is a little smokey but I know she needs a good tune up.

When I turn my high beams on the tach is jumpy and goes from 2 to 4 and back to 3 and all over the place erratically, but the motor doesn't jump all over as the tach shows, it stays steady. When the high beam is off, the RPM's on the tach and the motor are steady and true. What could be causing the tach to act erratically only when the high beams are turned on?

Thanks,

 

[A couple of bucks]

On the three wires that are going to the headlight, identify the high beam wire. Follow that wire back from the headlight until you find where it is chafing.

 

[Yam oo ah 600]

Thanks couple of bucks. I really hope that's the issue....electrical is always a pain for me.

 

[A couple of bucks]

You & me both.