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2020 XSR9, Shock Factory M rear, K-Tech fork pistons
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154 Posts
I agree, probably a deceased battery. Strange that it wouldn't start off another though.
Which makes me think the issue is in the starter switch or solenoid............................
 

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2020 XSR9, Shock Factory M rear, K-Tech fork pistons
Joined
154 Posts
I think I have an explanation for why it would not start with a jumper. I admit that part of this is guessing though. I think we will all agree that electronics can be finicky about having the correct voltage. Solenoids and starters not so much. When you hook up a jumper to a very dead battery you are appling approximately 12.8 volts to charge the dead battery. You have plenty of amps to turn the motor over BUT your battery is still charging. In doing so it is using the voltage and amps to restore itself thus I would guess if you put a meter on the output it might only show 11 volts or so even if the starter is turning. That is way less voltage than the electronics requires. Under such a condition I am sure that even attenpting to push start would be unsuccessful.
Interesting hypothesis.
 
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