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Deuche Fester
Dropped
Joined: 17 Apr 2008
Posts: 102
Location: Hilversum, The Netherlands
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 Posted: Thu Jun 04, 2009 5:03 pm Post subject: Installing a Harley Davidson Tachometer |
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I've been having some trouble connecting a Harley Davidson tachometer. Lots of people have them installed and working great, but mine isn't working.
pics:
 
I tried connecting it in 2 ways already but it does not want to work:
--------------------------------------------
Yellow - 12V
Orange - the + wire on the coil (signal)
Blue - Ground
--------------------------------------------
Yellow - the + wire on the coil (signal)
Orange - 12V
Blue - Ground
--------------------------------------------
I cannot seem to find any wiring diagrams for my model, the only thing i found is an ebay ad saying that mine came from an FXR.
(http://cgi.ebay.com/ebaymotors/5620-NEW-Harley-FXR-tachometer-67042-85-FXRS-FXRT-FXRD_W0QQitemZ360137203762QQcmdZViewItemQQptZMotorcycles_Parts_Accessories?hash=item53d9d9a032&_trksid=p4506.c0.m245&_trkparms=65%3A12|39%3A1|72%3A1205|240%3A1318)
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backfire
Dropped
Joined: 14 Nov 2007
Posts: 346
Location: NL, 's-Hertogenbosch
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| Posted: Thu Jun 04, 2009 5:26 pm Post subject: |
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the casing is ground fester.
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Deuche Fester
Dropped
Joined: 17 Apr 2008
Posts: 102
Location: Hilversum, The Netherlands
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| Posted: Thu Jun 04, 2009 5:36 pm Post subject: |
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Okay thanks, but that makes me even more confused about the other wires :)
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Bart
Lowered
Joined: 17 Jun 2007
Posts: 783
Location: Södertälje
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| Posted: Thu Jun 04, 2009 5:43 pm Post subject: |
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There is a topic about wiring a harley revcounter on 2cv.nl, if that helps..
Cheers, Bart
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Deuche Fester
Dropped
Joined: 17 Apr 2008
Posts: 102
Location: Hilversum, The Netherlands
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| Posted: Thu Jun 04, 2009 5:54 pm Post subject: |
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I know, that is where i posted this too :)
I tried to connect it with a Ground on the casing and the yellow and orange cable as 12V and signal (tried both ways). No response yet..
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Malte
Lowered
Joined: 11 Dec 2007
Posts: 534
Location: Germany
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| Posted: Thu Jun 04, 2009 11:08 pm Post subject: |
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the + Wire at the coil does not give you any signal!!
you need to put the signal cable to the - cable of your coil!
but i don't know which cable it is at your rev counter!!
good look!
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Meeuw
Dropped
Joined: 24 Sep 2008
Posts: 280
Location: Zandvoort, The Netherlands
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| Posted: Thu Jun 18, 2009 7:12 pm Post subject: |
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Fester,
If you want a hassle free Tacho you can also use an old Honda motorcycle Tacho and the Speedo pick-up of the front wheel. It's mechanic and you can connect it to your fan.
Attach the Speedo pick-up to the grille, fabricate a connection to the fan and use a long Bowden cable to connect the pick-up to the tacho on your dashboard.
Go to Muts in Soest if you want vintage parts or else go to Leertouwer, also in Soest. Beeing a 'Gooier' you surely know the adress  |
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S O S
Snailer
Joined: 21 Jul 2009
Posts: 15
Location: The dreich North
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| Posted: Tue Jul 21, 2009 3:21 pm Post subject: Re: Installing a Harley Davidson Tachometer |
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| Deuche Fester wrote: | I've been having some trouble connecting a Harley Davidson tachometer. Lots of people have them installed and working great, but mine isn't working.
p
I tried connecting it in 2 ways already but it does not want to work:
--------------------------------------------
Yellow - 12V
Orange - the + wire on the coil (signal)
Blue - Ground
--------------------------------------------
Yellow - the + wire on the coil (signal)
Orange - 12V
Blue - Ground
--------------------------------------------
|
nearly there!
Orange +12v
blue = ground
yellow = signal...-ve on the coil the one that runs to the points
The case is not the ground on these Tachos
If you have an electronic set up for the ignition then there may be some other way of wiring the signal wire but basically as long as its to the wire that goes on and off it should work.
S
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