New battery in 2006 MV Agusta F4 1000S . Turns over, but tach doesn't sweep....... - MVAgusta.net
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post #1 of 19 (permalink) Old 04-19-2017, 05:35 PM Thread Starter
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New battery in 2006 MV Agusta F4 1000S . Turns over, but tach doesn't sweep.......

Just put new battery in 2006 MV Agusta F4. Turns over, but tach doesn't sweep, LCD screen remains blank, no fuel pump priming heard, and no head lamp......

When the key is on, the only dash lights that come on are the battery and oil pressure.

If I put the side stand up, the tach sweeps and the digits on the dash come on, and headlamp turns on, but still no fuel pump. As soon as I put the stand down I'm back to square one.

I replaced the side stand safety switch, no difference. If it' something someone on the board has seen before I'd love to hear what fixed it.
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post #2 of 19 (permalink) Old 04-20-2017, 07:02 AM
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Assuming the dash worked normally before the new battery:

First make sure all of the wires are connected correctly...

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post #3 of 19 (permalink) Old 04-20-2017, 08:21 AM Thread Starter
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I wish it was that simple. The battery connections are indeed wired up properly. This issue started before the battery was replaced. I put a new battery in hoping that was the problem, but unfortunately it was not...
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post #4 of 19 (permalink) Old 04-20-2017, 08:26 AM
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So that's a F4 1000R, being a 2007?

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post #5 of 19 (permalink) Old 04-20-2017, 08:38 AM
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And sorry to ask, if you have the wires correct, are you sure the battery polarity is right, battery on its side ?
Other than that, the model is really important since the "R" and "S" have completely different wiring looms and solution to your problem.

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post #6 of 19 (permalink) Old 04-20-2017, 09:26 AM Thread Starter
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It's a 2006 F4 1000"s". I tried updating the typo in the topic summary but wasn't able.

The battery is on it's side and the polarity is correct. Replaced the battery with the same brand and was plugged in no different then the one replaced. I can take a pic later if needed.....
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post #7 of 19 (permalink) Old 04-20-2017, 09:49 AM
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Okey dokey - I posted some pics of your model and 750 wiring up a few months back, similar problem, one was damaged wiring behind the fuse box, the other was a faulty latch or power relay. I'll try and find those pics and post em up tomorrow.
In the meantime I'd suggest you look at the wiring diagram and check those fuse as well as the relays under you seat.
I'll Edit your heading for you so others will know too, good luck - ah you got that sorted yourself, good man
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post #8 of 19 (permalink) Old 04-20-2017, 11:41 AM
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The diodes spring to mind...

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post #9 of 19 (permalink) Old 04-20-2017, 12:29 PM Thread Starter
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@gotojoe.....is that something easy to check? I'm not sure where these are located to test...
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post #10 of 19 (permalink) Old 04-21-2017, 12:52 PM
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Originally Posted by chrisbanks00 View Post
@gotojoe.....is that something easy to check? I'm not sure where these are located to test...

Chris, I'm just getting ready to travel ..Have a look on the forum search as this has been gone over before a few times.

If someone has inadvertently connected the battery in reverse, even for a fraction of a second then it can KO the diodes.

On my F4 there is a diode across the primary wires of the starter solenoid. Yours may be also under the seat on the right.

Hope you find it !

Joe
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