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Discussion Starter #1
Hi there!!

I had to leave my bike parked under the burning Spanish sun for 5 days. When I came back my battery was completely drained and didn't even have power to light the panels. I assume I have left this little damned parking light one when I had to leave it in a rush.

I've tried charging up the battery with a homemade device that I have manufactured and used before which gives it a current of 19V and 2,1A. The batter has been successfully charged up to 12V now, however I have no clue about the intensity of the current it provides.

The problem comes when I mounted it back and the bike won't start (Please see the attached video)
I've tried to start with another battery from a 125Tmax ( this one is less powerful) and it won't start either, however my recharged Ducati's battery will start the Max..


Any clues?

Thank you for your attention !!
 

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Discussion Starter #2
Update:

I tried starting the bike connecting it to a WV Polo and still the same result. Removed the air filter to make sure sufficient air fills the cylinder and nothing happens, thus I assume something is going on with the fuel.

Removed sparks after trying to start up and confirmed they're not wet, no fuel reaching the cylinder :(
I tried starting the bike with tank cap open to listen for noise and I can't recall any noise inside... is the fuel pump not working? would you check for clogged fuel lines?

Greets!
 

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Can you hear the fuel pump prime? It's hard to miss once you hear it.
I would start by checking the fuses on the bike and then the relays.

What year is the bike?
 

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I had a similar problem on my s2r 1k a few months ago. I had to rule out everything and it turned out to be
the fuel pump. Eventually, I was able to chalk it up to a faulty wiring harness that comes out of the tank.
 

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Discussion Starter #5
Hi ! thanks for your response.

It was the fuel pump. After checking few more times I realized there was no noise at all. Then I jumped the wires straight from the battery and magic happened. Recognized some wires coming from the plug were damaged ( the copper inside of the wires was kind of like dust). Replaced these and I was able to ride the bike just fine.

However, after a couple of days of no use, I found the bike with the battery completely drained again. It must be def coming from the fuel pump circuit. Any ideas on where to check?

Btw, its a 2007 695 monster.

Thanks again !
 

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Perfect! So it was the fuel pump. My bike is the same year.

Kind of hard to tell from here. But do you hear the fuel pump relays when turn on/off the bike?
 
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