DP LED tach wiring

[Düb Lüv]

i bought it cheap and it works, but it doesn't have the connectors. i messed with the wiring and got a couple readouts, but haven't tried wiring it in. out of the bottom of the tach there's a red, green, and blue wire. then there's a separate red wire that comes out of the front.

[suzyj]

I have no first hand experience, but I'd wager that red goes to +12V, green to ground, and blue to either the hall sensor or the LT side of one of the coils.

The separate red wire is likely for illumination.

[Düb Lüv]

when i hooked the separate red wire to a power source, it gave the tach a low rpm reading. and the illumination light lit up. i worried about guessing where the wires go on the ICU. i don't want to damage the tach.

[Düb Lüv]

so i wired the 2 red together and green on the black and blue on grey. i'm attaching these to the right 3 wire ignition module connector.

the tach sweeps and when i start the bike it read 4500-5000 rpm at idle and doesn't really move on revs.

what am i doing wrong

[Düb Lüv]

i found this video months ago.
tachometer for ducati monster 900

it's strange. the tach in the video has blue light and red in the redline area. mine has red light all the way across. is this something out of the ordinary?

[Duck-Stew]

I can't say about the 2nd red wire, but the other wires should be:

red= 12V +
Blue= 12V -
Green= tach signal from either ignition box.  (grey or green wire depending on which box you tie into)

[64duc]

it's strange. the tach in the video has blue light and red in the redline area. mine has red light all the way across. is this something out of the ordinary?
[/quote]


  No. The one I used to have was red also.

[live2ride]

looks like you were the one who outbid me

good luck with the install

if you cant get it to work, feel free to send it my way

[Düb Lüv]

looks like you were the one who outbid me

good luck with the install

if you cant get it to work, feel free to send it my way

you must be thinking of somebody else. i get that all the time.

[koko64]

I love those tachs.
Had one on my first Monster. Should have taken it off when I sold it.
Regret..