Tach signal wire question

[armor_dan]

Does anyone know what wire in the main harness (that runs to the guage cluster) generates the tach signal? Since my Kat is in the process of becoming a streetfighter, I will be using a Veypor instead of the original guages, because it is small and compact, and will fit the theme of the bike a little better. Any help will be greatly appreciated.

[SweetLou]

I don't think it actualy has to run from the tach. I think it can run off any coil wire pick up. At least that was my understanding.

[The CyberPoet]

The wiring diagram from the 98-03 Kats can be found here:
http://771doug.netfirms.com/electrical2.html if that's any help...

Cheers
=-= The CyberPoet

[armor_dan]

Thanks for the help. It can be run off the pickup, but I figured I wasn't using the wire to the guages anyways, why not just use that instead. I am using the veypor solely for it's use in the speedometer and the tachometer.

[armor_dan]

Actually, I've checked the diagram, but it doesn't specify what the tach signal is. Anyone know?

[The CyberPoet]

Pin-outs for the connector at the back of the OEM gauge panel (98+) are (reading top row, left to right as pins 1 thru 10 and bottom row left to right as pins 11 thru 20):

1 Common Ignition-switched hot (+)
2 Illumination (+)
3 Speedo
4 Speedo
5 Common Ground (-)
6 - 8 unused
9 Neutral indicator (-) [pairs to + at pin 1]
10 Highbeam indicator (+) [pairs to ground at pin 5]
11 Turn signal indicator (L) [pairs to ground at pin 5]
12 Turn signal indicator (R) [pairs to ground at pin 5]
13 unused
14 Tach
15 Oil pressure warning indicator [pairs to + at pin 1]
16 Fuel level
17 - 20 unused

Thus, Tach is 4th pin from the left edge on the bottom row (of the gauge panel).
Remember to reverse this pin-config as necessary when looking at the pigtail connector that goes into the back of the gauge panel.

Factory manual does not specify whether the Tach gets a pulse-on-spark or resistance (ohm) change or voltage change to establish reading level. Matter of fact, it doesn't even list a test for the Tach (unlike all the other gauges & lights), implying that it is an item that either virtually never breaks or just gets swapped out if it does...

Cheers
=-= The CyberPoet

[Special K]

Red wire with black or grey tracer...............or black with red tracer........anyways its black and red!!


I just converted a 1994 to an 01 engine and wiring harness and electrics, but teh gauges had to stay, so I had to solder EVERY wire up front.

I made a matrix of both wiring diagrams and went to town! Checked them all, then soldered away! Everything works!

Need any more PM me!