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Old 09-26-2012, 06:29 PM   #6
Beastly Adventurer
kelsow's Avatar
Joined: Feb 2004
Location: Halifax Nova Scotia
Oddometer: 1,118

So I was in the middle of nowhere on Sunday when I went to start the bike and it turned over s l o w l y but started.
I headed home to my garage, stopped the bike and it would not restart.
Did a bit of research and decided it was prolly the battery.
Replaced it with a Deka, started right up.

Started doing a bit more research and poked around with a volt meter.
I'm not well versed but followed the instructions from here,

Anywho, here is what I found,

Fully charged battery was 13.0 dropping to a steady 12.78 with key off.
At idle it's 12.72
3000rpm 13.3
4000rpm 13.6
5000rpm 13.6
14.3v would be good, right?

I also checked the resistance at the 3 pronged connection.
I got 0Ω across all connections, 1-2-3 Is this bad or good?

For AC volts (with 3 prong connected)
At idle I got:
1-2 10v (after cleaning and dielectric grease)11.3
2-3 9v (after cleaning and dielectric grease)10.3
1-3 12v (after cleaning and dielectric grease)12.6

At 3000rpm I got:
1-2 10v (after cleaning and dielectric grease)10.9
2-3 11v (after cleaning and dielectric grease)11.5
1-3 14v (after cleaning and dielectric grease)14.6

I'm not sure if this is operator error or the tester I'm using.

"Kelsow's helmet is so tight, it cuts off the circulation to his personality."
Location: Doucheonia
Ride: 2010 BMW F800GS
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