So what I wanted to do is a tacho on my Vulcan 500 - 1994.

I finally got the tachometer delivered. Now the problem is it doesn't work right.

I added two pictures and a video to show you what it is. The tachometer seems to be out of this world. It's very very slow to pick up a reading, plus sometimes it doesn't return to zero.

I've attached the backlight power to the backlight source of the odometer. The other power source is of the small bulb inside the headlamp.

http://imageshack.us/photo/my-images/600/p1000796t.jpg/
http://imageshack.us/photo/my-images/14/p1000797u.jpg/

http://imageshack.us/clip/my-videos/33/3u5.mp4/


Any suggestions appreciated.

Thanks.

 

wow! it is not just slow, it does not work! look at your electrical connections again. Good luck and welcome to KF