Monster Problems - Ducati Supersport 939 Forum
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post #1 of 16 (permalink) Old 07-11-2019, 09:44 AM Thread Starter
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Monster Problems

You guys are certainly more mechanically inclined than I (at least some of you), so to you I pose the question:


On my 2014 Monster 796 ABS, can I jump start it by running with it and releasing the clutch while it is in gear? I believe my battery is dead (bike won't start), and after being on the trickle charger for a few days it has more life, but not enough to start it. The reading for my battery is just under 12. Right after I take it off the charger it creeps over 12, but not for very long. I really just want to confirm it is the battery before I buy a new one, so I thought if I could jump it by running with it at least I'd be a little more certain.


Oh the problems one runs into when they can't get enough of the SSS and so all the other toys start to be neglected....
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post #2 of 16 (permalink) Old 07-11-2019, 10:45 AM
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On my 2014 Monster 796 ABS, can I jump start it by running with it and releasing the clutch while it is in gear? I believe my battery is dead (bike won't start), and after being on the trickle charger for a few days it has more life, but not enough to start it. The reading for my battery is just under 12. Right after I take it off the charger it creeps over 12, but not for very long. I really just want to confirm it is the battery before I buy a new one, so I thought if I could jump it by running with it at least I'd be a little more certain.
I'm not sure you can bump start these fuel injected bikes or just how many battery volts it might take.
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post #3 of 16 (permalink) Old 07-11-2019, 11:09 AM
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Wouldn’t hurt to try. Use a higher gear (not first, LOL). Maybe the voltage regulator is bad. I’d say take battery out and have it load tested, but recently did that with car battery and O’Reilly’s tester was defective.

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post #4 of 16 (permalink) Old 07-11-2019, 11:21 AM
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5 years is a pretty good run for an OEM battery. Get it tested, my bet is it needs to get replaced. You *should* be able to bump start it, the battery needs most of it's cranking amperage to overcome the starter motor and crank resistance, which you are bypassing by running with the bike. But - the battery may not have enough internal energy to actually run the electrical systems like fuel pump and injectors.
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post #5 of 16 (permalink) Old 07-11-2019, 11:35 AM Thread Starter
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5 years is a pretty good run for an OEM battery. Get it tested, my bet is it needs to get replaced. You *should* be able to bump start it, the battery needs most of it's cranking amperage to overcome the starter motor and crank resistance, which you are bypassing by running with the bike. But - the battery may not have enough internal energy to actually run the electrical systems like fuel pump and injectors.

I was happy with 5 yrs too (really it is working on its 6th season already). It has been on the trickle charger for most of the off seasons, but it has run down a few times when I forget to put it back on after the occasional ride.
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post #6 of 16 (permalink) Old 07-12-2019, 10:54 PM
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Originally Posted by junior View Post
You guys are certainly more mechanically inclined than I (at least some of you), so to you I pose the question:


On my 2014 Monster 796 ABS, can I jump start it by running with it and releasing the clutch while it is in gear? I believe my battery is dead (bike won't start), and after being on the trickle charger for a few days it has more life, but not enough to start it. The reading for my battery is just under 12. Right after I take it off the charger it creeps over 12, but not for very long. I really just want to confirm it is the battery before I buy a new one, so I thought if I could jump it by running with it at least I'd be a little more certain.


Oh the problems one runs into when they can't get enough of the SSS and so all the other toys start to be neglected....
Yup, bump start it but be sure you’re getting a good run at it, you’re in maybe 3rd gear and everything else is in good shape. At five years you are due for a battery regardless, just saying.

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I'm not sure you can bump start these fuel injected bikes or just how many battery volts it might take.
You can, I’ve done it on 3 different FI motorcycles and had no issues. Two were because I left the USB ports plugged in directly to the battery on my Thruxton and CBR and didn’t ride them for over a month because I broke my back in a mountain bike accident.

The third was a guy at work who left his key on too long. All had enough juice to light the dash but not enough to turn over the motor.

Mike

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post #7 of 16 (permalink) Old 07-13-2019, 02:11 AM
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If the battery charger doesn't get your battery any higher than 12V in a day, your battery is dead. You need to replace it.
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post #8 of 16 (permalink) Old 07-13-2019, 05:07 AM
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post #9 of 16 (permalink) Old 07-13-2019, 05:16 AM
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Originally Posted by junior View Post
You guys are certainly more mechanically inclined than I (at least some of you), so to you I pose the question:


On my 2014 Monster 796 ABS, can I jump start it by running with it and releasing the clutch while it is in gear? I believe my battery is dead (bike won't start), and after being on the trickle charger for a few days it has more life, but not enough to start it. The reading for my battery is just under 12. Right after I take it off the charger it creeps over 12, but not for very long. I really just want to confirm it is the battery before I buy a new one, so I thought if I could jump it by running with it at least I'd be a little more certain.


Oh the problems one runs into when they can't get enough of the SSS and so all the other toys start to be neglected....
You will quickly know the battery is shot if you do a load test with a Hawkins load tester. It's not your regular tester in your everyday toolkit., so maybe a visit to the battery centre is needed.

A volt test will not give you the condition of the battery, what you want to know is how much charge/current it can hold. That's the load test.

If you want to check the bikes charging system then start the engine, place the multimeter terminals across the battery terminals, when the bike is running you should get anywhere between 13.2-14.2V. If you're not getting higher than the nominal 12V then your bike has an electrical fault with the rotor/stator or the regulator.

Then do a current drain test on your bikes circuitry. The current drain test requires only a multimeter. Disconnect your negative terminal from the battery. Hook up the meters positive on the battery then hook up to the disconnected negative cable with the meters negative wire. Set the meter to 2 amps with the ignition off and you see the current drain on the meter. Not all meters are the same so you might need to check you have the wire in the amps slot on the meter.
Voltage is measured in parallel and current is measured in series.
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Last edited by amoslws; 07-13-2019 at 05:28 AM.
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post #10 of 16 (permalink) Old 07-13-2019, 10:47 AM
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Quote:
Originally Posted by junior View Post
You guys are certainly more mechanically inclined than I (at least some of you), so to you I pose the question:


On my 2014 Monster 796 ABS, can I jump start it by running with it and releasing the clutch while it is in gear? I believe my battery is dead (bike won't start), and after being on the trickle charger for a few days it has more life, but not enough to start it. The reading for my battery is just under 12. Right after I take it off the charger it creeps over 12, but not for very long. I really just want to confirm it is the battery before I buy a new one, so I thought if I could jump it by running with it at least I'd be a little more certain.


Oh the problems one runs into when they can't get enough of the SSS and so all the other toys start to be neglected....
Get a new battery. Pretty typical when it won't hold charge.

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