Wiring New Gauge Set - Koso Gauges

[salty_monk]

I guess I could probably get there eventually but a lot of you guys are much better at electrickery than me..!

If anyone's bored I'd appreciate a hand working this out.

I know I have one or two polarity issues that may not work out as well as I planned too

This is going on the 83GS750ES.

So:

Koso Instructions:



GS Schematic:



I think these should work ok:

[salty_monk]

I was hoping to use the Hazard light as a side stand light (not critical) but polarity seems to be wrong to do that.

I think the Fuel & Oil temp should plug right in. Looks like Fuel I can get to read right but the oil temp is anyones guess... anyway I can test the one they gave me? I'm guess that I put it in a pan of water & measure the Ohm's as it gets hot - best way I can think of.

So far I have: (Koso Left & GS Right)

Brown - switched +ve
Black - Ground
Red - Non-switched +ve

Orange (L Flasher) - Black
Green (Low beam) - need to run from headlight bucket or ignore
Yellow (High Beam) - yellow
Light Blue (Neutral) - Blue
Dark Green (Fuel) - Yellow / Brown
Blue (R Flasher) - Light Green
Gray (Oil pressure) - Green / Yellow (Looks like this one can be a + or - input to the Koso)
Purple (Water Temp) - Ignore or Pink? (I can also use Accessory 4 which has separate wiring from this purple one so unsure which to use here...)
Dark Purple (Hazard) - Ignore but I would actually like to use this for a side stand switch if poss. Green/White is -ve though & this light needs a +ve.

Tach can use +ve or -ve setting so I will attach that to Black Yellow (but unsure if that is + or - need to look at the main loom schematic to see if I can trace it)

Thanks in advance for any help... Now I've actually sat down & studied it I'm not so wary of it... looks like more will work directly than I thought.

Dan

[salty_monk]

Full Schematic:



The Black/Yellow - who can tell me from this whether it is + or -?



Thinking about the side stand switch - I guess I could use the -ve wire to switch a relay & then switch a +ve for the light on the new gauge set - any better ideas out there? (I may just run a separate Light).

Thanks!

[TheCafeKid]

Just glancing at this..But your pink wire is from the oil temp gauge.. the gauge in the new set is still just a thermometer..doesnt care whether its oil or water, so it SHOULD work fine I would think?

[salty_monk]

Yes, I think I could probably wire it up either way as the gauge can handle both water & Oil temps.

The purple will likely be easier to wire up in the first instance so I might try that first & see how well it works out... I'm not that upset if I don't even have the oil temp registering in all honesty.

[PoppaDre]

Do you have the speedo and tach working yet? I was looking at these gauges and just really care about speedo tach, (neutral, turn signals, and oil light would also be a positive). I am kind of scared now after you mentioning it has posed a problem.

[salty_monk]

Not yet but it looks like those bits are all relatively straight forward...

Only thing you'll definitely have to watch out for is electrical interference on the tach....

Dan

[PoppaDre]

Salty, do you need an led relay to run these koso gauges. I asked my gf for the Koso DB gauge for my birthday and want it to work out of the box. Is there anything I need to do to prep the bike for the gauge? Thanks. How is your gauge treating you?

[salty_monk]

It's treating me fine from it's box on the workbench!!!

Don't know about the relay, assume you mean flasher but i have electronic type anyway.

[salty_monk]

Anyone tell me if the stock black yellow is + or - outputfrom the coil?

[Mekanix]

with the ignition on you should have power at one wire all the time,

the other wire will be the one switching.

[PoppaDre]

IT'S not on your bike?!?!? What problems did you have? Should I get the db gauge. All I really want is a speedo and maybe idiot lights. That's why I am going with the db

[salty_monk]

3 bikes to work on and a trip to China aren't conducive to getting it done!
I would think that black yellow must be +
I don't think it will to connect it up and change settings on the gauges till it reads right.

[posplayr]

Anyone tell me if the stock black yellow is + or - outputfrom the coil?

Hey Dan when are you gonna do a video like Rob?

http://www.thegsresources.com/_forum/showthread.php?t=159253

[salty_monk]

When you tell me what that damn black yellow wire is!