Tach quit working - Wrist Twisters
 
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post #1 of 10 Old 07-04-2012, 01:59 PM Thread Starter
Tirone
 
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Tach quit working

Can someone tell me how to troubleshoot my tach. 2002 919. It and the temp gauge quit for no apparent reason. Fuses are ok as is everything else. Help!

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post #2 of 10 Old 07-04-2012, 04:28 PM
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check the connections to the guage cluster.

With the 919, use the KISS method.... Keep It Simple Stupid.

Its a very simple bike and typically problems are solved with the easiest most trivial things.

Looking at the service manual pdf... it looks as if the tach, temp, reserve light, and neutral indicator, are all on one of the two plugs that go to the gauge cluster.

Here is the service manual pdf.... wiring diagram is on page 425

https://www.dropbox.com/sh/rb2wzm4ln...-converted.pdf


OH, and welcome! welcome to the madness that is WT and the 919! post up some pics of your beast!

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post #3 of 10 Old 07-04-2012, 09:03 PM Thread Starter
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Thank you for the prompt advice, I will follow it and post the results. Here is a picture.
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post #4 of 10 Old 07-04-2012, 09:13 PM
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Welcome! Hope nd4spd's advice works for ya. Lots of helpful people on here. Is that pic on the Blue Ridge Pkwy?

My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.
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post #5 of 10 Old 07-04-2012, 09:34 PM Thread Starter
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Thank you. Wow, you have a keen eye. Yes thats exactly where it is. This past Memorial day weekend. Rode a litle of the Blue Ridge Parkway and rode the Tail of the Dragon for the first time. What a ride.

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post #6 of 10 Old 07-04-2012, 10:08 PM
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Heh, only recognized it because I have a picture of my bike that's pretty similar from a couple years ago. I'm heading from STL to Nags Head in two weeks. Meeting my buddy from Philly in Knoxville, going down US-129, hitting the Tail, then over to Cherokee. Will then ride the whole BRP over a couple days. Can't wait. I did the Tail last year in a car, so this will be my first time on the bike.


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post #7 of 10 Old 07-05-2012, 04:17 AM
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Originally Posted by cmelnick View Post
Heh, only recognized it because I have a picture of my bike that's pretty similar from a couple years ago. I'm heading from STL to Nags Head in two weeks. Meeting my buddy from Philly in Knoxville, going down US-129, hitting the Tail, then over to Cherokee. Will then ride the whole BRP over a couple days. Can't wait. I did the Tail last year in a car, so this will be my first time on the bike.

Man, where did you get those saddle bags from?

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post #8 of 10 Old 07-05-2012, 04:58 AM
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Man, where did you get those saddle bags from?
Chase Harper stealth bags. Bought them used on ebay.

Sorry, OP, didn't mean to jack the thread. Keep up posted on your tach issue.

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post #9 of 10 Old 07-05-2012, 04:43 PM
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Back on topic.

The tach and temp gauge, while on the same gauge face, share only the switched power on the Black / Brown wire and ground on the Green wire. If either of these is not there none of the instruments and most of the warning lights would not work. The only other shared component is the Brown 9 pole connector in the headlight bucket where the input to the tach and temp gauge connect, which would seem to indicate the fault lies there as nd4spdbh posted. Open the headlight shell and check the wires in the connector, specifically the Yellow / Green tach signal wire and the Green / Blue temp wire, the condition of the pins and sockets, and make sure it's properly seated and locked. Also, apply some dielectric grease to the pins before reconnecting. Trust me -- it can only help.

There is a remote possibility that there are two separate problems that caused the tach and temp to stop reading simultaneously, but that's not the way to bet.

Rob

If it has already been done, it is safe to assume it is possible to do it.
On the other hand, if it has not been done never assume it is impossible to do it.
------- Rob --------
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post #10 of 10 Old 07-05-2012, 07:05 PM Thread Starter
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Thank you Rob. Will try it this weekend. My money is on this teory.

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