[Hellstang]

PROBLEM SOLVED: IT WAS DEAD.
Okay, now I know everyone will ask “is it kickstand down and bike in gear?” No. “Is the kill switch off?” No. The bike is turning over, I just swapped the exhaust and it’ll crank over a few times getting slower and slower each crank, then it refuses to crank any further. And if I don’t turn the key off and on again, I can flip the switch off then on and try and crank it and nothing happens. It ran 10 minutes ago. Could it be flooded? Is the battery dying? (When I last checked it said 11.57V). I did accidentally leave the key on when changing the exhaust.
Thanks for any advice.

 

[Schroeder]

Sounds like a low battery. Hook it up to a charger and try again when it's fully charged.
It doesn't take long to drain the battery when the key is turned on.

 

[Hellstang]

Sounds like a low battery. Hook it up to a charger and try again when it's fully charged.
It doesn't take long to drain the battery when the key is turned on.

I jumped it and let it idle for a bit, it indeed was dead.

 

[jkv357]

I jumped it and let it idle for a bit, it indeed was dead.

It may take more than a bit of idling to fully charge the battery.

Initial voltage of 11.57V is only 20% charged. A 100% charged 12V battery will read 12.7V, and usually more after charging/riding.

 

[Internide]

I agree with the low battery