|
|
Post by stinger440 on Nov 25, 2013 21:23:43 GMT -5
I have a tach from a 72 stinger that had a CCW W/ electric start. It has a plug on the back with 2 yellow, 1 black, 1 white and a brown ground wire. I want to wire that up to a 440 sachs without electric start. I don't even care about the light on the back. My question is, since my sled is not electric start can I still use this tach? I don't want to start hacking up a harness if its not even going to work  |
|
|
|
Post by scorp11 on Nov 25, 2013 22:00:01 GMT -5
The book only shows 1 tach regardless of engine. There are different wiring harness based on which engine was in the sled, but not a different harness listed for electric start vs non-electric start. I am sure there is additional wiring related to the electric start, but I am not sure that it would effect how the tach is connected. Not sure any of that helps, but it is all that I got  |
|
|
|
Post by stinger440 on Nov 26, 2013 8:07:25 GMT -5
Thanks Scorp11, that is good information. Is there anyway you can tell me what posts to connect to on the tach? I have a lead spliced into the lighting circuit and a ground.
|
|
|
|
Post by weverat on Nov 26, 2013 20:38:05 GMT -5
My tach has a plug with just 3 wires. Yellow from light switch to instrument light, yellow w/ black stripe from engine before the light swich (always hot) to the tach, and a brown for ground. I do not know what your black and white wires are for ?
|
|
|
|
Post by stinger440 on Nov 26, 2013 21:37:38 GMT -5
I'm not sure what the extra wires are for either. It has something to do with the electric start system. But I did some digging and I found a wiring diagram for it. Looks like all I need for my application is the yellow/black wire and the brown for ground.
Thanks for verifying weverat.
|
|
|
|
Post by scorp11 on Nov 26, 2013 23:10:38 GMT -5
Two wires is all you should really need to run the tach I believe. power and ground. + 1 for the light if you have that.
The most I found so far on any tachs I have around is a 75 whip with 4 wires 2 that connect to 2 different posts on the tach 1 ground wire and 1 wire for the light. Pretty sure Stewart Warner made those.
The later Nippon Seiki tachs only had light, power and ground wires. Perhaps the number of wires depends on who made the tach, rather than electric start or not ??
|
|
|
|
Post by ddub on Nov 26, 2013 23:35:13 GMT -5
Scorp11,
I think you are correct on it has to do with the tach, not e start or no e start.
I see no reason why e start would have anything to do with a tach.
E start will mean you have a different voltage regulator. (rectifier with E start because you have to convert power to 12 volt for the starter system)
|
|
