Monster Died at Stop Light

[dodgeman]

I have a 2000 M900 Sie.

Was at a stop light this afternoon when the motorcycle puttered out... almost like it ran out of fuel.  I could not start it back up.

I do not hear the fuel pump when I turn the ignition on.  I checked the fuses under the seat... they all seem fine.  The starter seems to be working.  The battery is okay.  The bike has gas.

Is there anything else I should check?

[ducpainter]

Pretty sure there is a relay for the injection. It is under the seat next to the fuses I believe. If you do a search for it you'll probably find instructions for checking it.

When howie gets home he can tell you how.

[Howie]

Pull said relay.  Jump terminal 30 and 87.  With the key on the pump should run.  If it runs either the relay is bad or it is not getting a signal.  If you want to test the relay, hook an ohmmeter across terminal 30 and 87 on the relay.  You should read infinity.  Apply 12 volts to terminal 85 and ground terminal 86.  Now the relay should show continuity.  If not, the relay is bad.

Can I go to bed now, Nate

[dodgeman]

You guys rock.  Thanks.  I will try this when I get home tonight.

[Porsche Monkey]

Yes yes they do rock.

[dodgeman]

I jumped terminals 30 and 87... unfortunately, the bike did not start, so I do not think it's the relay.  Is there anything else I should try before pulling the trigger on a new fuel pump?  If not, should I order a fuel pump through the dealership (gengras) and try to install myself?

Thanks.

[Howie]

Don't go and buy that pump yet.  Do you have voltage at terminal 30?  If so, are you getting voltage to the brown/white connector on the bottom of the tank that goes to the low fuel sender/pump?  Does the pump (removed from the tank) run if wired directly?

[dodgeman]

>> Do you have voltage at terminal 30? 
>> If so, are you getting voltage to the brown/white connector
>> on the bottom of the tank that goes to the low fuel sender/pump? 

Yes - if I am using the multimeter correctly, these look okay (Not sure if you can tell, this is my first time doing any of this).

Also - to clarify my previous post... When I jumped the 87 and 30 terminals, all of the lights illuminated on the bike even when the key was off.  I did not hear the pump when I turned the key on.  There are two terminals marked 87... I used the one at the top (I believe the wire is red/yellow).


>> Does the pump (removed from the tank) run if wired directly?

I printed off these instructions:  http://ducatimonsterforum.org/index.php?topic=26567.msg463683#msg463683
I am going to attempt to do this tomorrow night.  I should wire this to the battery directly, right?  Do I need to immerse the pump in fuel?

Thanks howie.

[Howie]

If my memory works, the wire for the pump is brown and white and the other connector should be blank, so i guess something is afoul.  I just looked at the wiring diagram and it agrees with my memory, but often there are mistakes.  Is there a brown/white wire?  I wouldn't submerge the pump.  You are only going to run the pump momentarily and it will not run dry anyway.

[dodgeman]

I tested the brown and white wire going to the tank... I am not getting 12 volts.  I am getting 12 on the blue wire though.

I hooked the fuel pump up to the battery... it runs!  I hooked the fuel pump up to the low fuel sensor and then to the battery... the fuel pump did not work (maybe that is expected?).  I took the low fuel sensor and wired it up to the battery and then used a multimeter on the connector that plugs into the fuel pump.. looks like 12 volts are running through it.

I am stumped.  Could it be a bad low fuel sensor or a connection?  The wires and connectors look fine.

[dodgeman]

After installing a new relay, I still do not hear the fuel pump when I turn the ignition on and I am still not getting voltage on the brown wire w/white stripe.  I am getting 12 volts on the blue one ( ).

Not sure what to check next.  Anyone have any ideas?

[Howie]

The blue wire is for your low fuel light.  If you have juice at terminal 30 with the key on and jump from 30 to 87 and the pump still does not run the problem is the wiring between terminal 87 and the pump.  If there is no juice at 30 the problem is fuse #6, the separate 40 amp fuse located by the battery or the associated wiring.  Check the fuses with a test light or meter if you didn't do that already.  A fuse can look good but have a break too small to see.

[dodgeman]

It ended up being the fuel sensor.  I am back in action!

howie - thanks for your help.