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Old 09-04-2014, 01:28 PM   #1
switters OP
life style researcher
Joined: Jun 2008
Location: Nottm. England
Oddometer: 4
R1150GS Fizzing battery?

Hi Guys

I've been lurking for a while and have just got myself back on a GS after a few years on other machines. Picked up a Blue / White 2001 R1150GS with no ABS, 60k miles. Runs very well indeed with Remus can and Y piece, far perkier than my old GS. Maybe I can now understand this talk of "they need time to loosen up"!!
Anyway. It didn't start after I trailered it home so put some juice into it with the booster pack. It fired first time and I went for a 30 mile blast. Loved it! However after I got home and stopped the engine there was a light fizzing sound which appeared to be coming from the battery (an Odyssey). Is it overcharging and hence overheating the battery? Is it OK? Any cause for concern?

I'm off to France on it very soon so could do with some advice please.
Cheers, Switters
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Old 09-04-2014, 01:38 PM   #2
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Joined: Apr 2011
Location: Delaware
Oddometer: 1,069
Get a new battery. The one you have sounds like it was left in a discharged state for too long and now is permanently damaged.
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Old 09-04-2014, 02:50 PM   #3
Big Fat Trail Bikes
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Joined: Feb 2011
Location: Western Australia
Oddometer: 895
I would still use a volt meter to check the charge voltage, with the motor running.
Should be somewhere around say 13.5V to 15V DC through the rev range.
Cheers, RVT

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Old 09-04-2014, 02:51 PM   #4
Beastly Adventurer
Joined: Oct 2004
Location: Anchorage, formerly Spenard (hub of the universe)
Oddometer: 5,419
you prolly need a new battery, but check the voltage regulator. sounds to me like it's over charging. the Odyssey can tolerate low charge way better than other batteries, read up on their data. a fizzing sound is not good... is the battery split?

change you brake lines if the original rubber ones are still installed. the years around Y2K are known to fail. mine did... fronts would not release, back were suddenly gone
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Old 09-04-2014, 04:53 PM   #5
switters OP
life style researcher
Joined: Jun 2008
Location: Nottm. England
Oddometer: 4
I'll get the voltmeter out and check over. I think the battery is a few years old so I'll just put in a new one to be safe.
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Old 09-04-2014, 05:20 PM   #6
Not afraid
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Joined: Aug 2008
Location: N.W. Arkansas
Oddometer: 16,018
It might be old, and somewhat sulfated from an undercharged scenario depending on your riding regiment, check this out.

this is a thread full of info, thanks a to an ADV member named Roger
In dog beers, I've only had one.
Charter member: T.O. club.
Tilt your head, not the taco.
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Old 09-04-2014, 05:53 PM   #7
Ginger th wonder dog
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Joined: Feb 2004
Location: The woods and mountains of Alabama
Oddometer: 9,224
Charge the battery. Have it load tested. Then and only then make decision regarding what to do.
The woods is closing in on me...I need a D6.
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Old 09-04-2014, 06:32 PM   #8
GS Addict
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Joined: Sep 2006
Location: Sunshine Coast B.C.
Oddometer: 3,505
Please report the voltage at the battery@ 2500rpm (motor having run for 5 minutes prior)
Without that it's difficult to diagnose the problem
Old enough to know better....
Young enough to try it again
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