Starting issues - '05 620

[Howie]

Shouldn't it be the other way around?

Yes

Gotta get rid of this flue like virus.  Let me go back and correct that.

[zooom]

okay...so I am pretty sure Das Battery is kaput...

I measured the voltage on the battery with the float charger on and it was 13.3_...I take it off the float charger and it drops to 12.96....I turn on the bike and the injection primes and all that and it drops to 10.6_...I hit the starter and it does exactly again what I was mentioning and it was 10.01 and then recovered back up to 10.5_....turn the key off and the battery recovers back up to 11.36 quickly and slowly continued to climb from there...

I think the battery in it is 4 Years old...a Yuasa YT12B-BS....I think she may be a goner....

[Howie]

okay...so I am pretty sure Das Battery is kaput...

I measured the voltage on the battery with the float charger on and it was 13.3_...I take it off the float charger and it drops to 12.96....I turn on the bike and the injection primes and all that and it drops to 10.6_...I hit the starter and it does exactly again what I was mentioning and it was 10.01 and then recovered back up to 10.5_....turn the key off and the battery recovers back up to 11.36 quickly and slowly continued to climb from there...

I think the battery in it is 4 Years old...a Yuasa YT12B-BS....I think she may be a goner....

Weird, the fact that it was reading 12.96 means it is charged enough to start the bike (AGM will go higher, but most chargers won't do it).  The pump dropping it to 10.6 would indicate a bad battery, but attempting to start the bike should have made it drop way down.  Recharge the battery and take it to a shop to have it load tested, many will do it for free.  Or if the load tester where you work is capable of being turned down to 100 amps or so you can do it there.  Replacing a four year old battery as preventive maintenance is not a bad idea, but you still want to know if it is good or bad for diagnostic purposes.  If the battery is good clean the terminals and cables before reinstalling.  Disconnect negative first and connect negative last.  As a SWAG, you either have a bad battery or a bad connection. 

Nate, please proof read this, I still have a flue like virus

[seevtsaab]

I don't have FHE but if the battery is too dead to pull the solonoid, the starter motor won't have an
opportunity to pull the battery down further, imo.

Sounds to me like the battery is toast, takes very little to draw down the voltage.

But, always check connections, good economy there.