Author Topic: No start no dash lights except the green backlight...  (Read 40670 times)

Offline Laitch

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Re: No start no dash lights except the green backlight...
« Reply #25 on: February 14, 2016, 01:39:29 PM »
+1 on replacing the battery. It's grown old from neglect and it's old anyway.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline Martin

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Re: No start no dash lights except the green backlight...
« Reply #26 on: February 14, 2016, 01:43:03 PM »
+2 But get a fully sealed battery next time less of a hassle.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline jjs1234

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Re: No start no dash lights except the green backlight...
« Reply #27 on: February 14, 2016, 01:43:51 PM »
 I would like to get a lithium battery.  I'm gonna take a look around see if I can find anything.


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Check out my build! Complete tear-down!
Mr. Creative

Offline Laitch

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Re: No start no dash lights except the green backlight...
« Reply #28 on: February 14, 2016, 02:02:30 PM »
You can get a lithium battery online with free shipping for $90 then invest the money you'll save into grip streamers, reflectors and new tiors.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline Martin

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Re: No start no dash lights except the green backlight...
« Reply #29 on: February 14, 2016, 02:08:03 PM »
Also have a look at AGM batteries I got 8 years out of one and 5 years out of another.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline Martin

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Re: No start no dash lights except the green backlight...
« Reply #30 on: February 14, 2016, 02:19:36 PM »
I just looked up the Brand of the AGM batteries I used and it was DEKA. I am not running one at the moment due to their unavailability, but will go back to one next time. The one I used was slightly larger than the OEM battery and I had to modify the clamp.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline K1300S

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Re: No start no dash lights except the green backlight...
« Reply #31 on: February 14, 2016, 03:52:17 PM »
Odessy pc680 agm battery.  Fits perfectly.

Or big crank xl16 from battery mart.
Project Thread "K75s Midlife Refresh"
http://www.motobrick.com/index.php/topic,7810.0.html

Offline Bill

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Re: No start no dash lights except the green backlight...
« Reply #32 on: February 14, 2016, 04:51:46 PM »
I agree that 12.3 is not a full charge.  Bubbling is a result of too high a charge rate !  :mbird   Replace it
  • Sutton, Ontario, Canada
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84 V45 Sabre
74 CB400
72 CB750

Offline jjs1234

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Re: No start no dash lights except the green backlight...
« Reply #33 on: February 14, 2016, 10:27:42 PM »
This suggestion sounds a little weird: shouldn't it be possible to run two batteries? To lithium ones that is.

One very small one under the seat, and another small one anywhere else.

On that topic, does anyone worry about the spontaneous combustion with lithium batteries?
  • Northern California
  • 1984 K100
Check out my build! Complete tear-down!
Mr. Creative

Offline Scott_

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Re: No start no dash lights except the green backlight...
« Reply #34 on: February 15, 2016, 07:43:23 AM »
Personally I'd be concerned that your charger, if it had a high enough charge rate to damage a LA battery, I sure wouldn't use it with a lithium or other sealed battery.

I also wouldn't recommend 2 batteries of different sizes. If you do consider 2, they really should be the same size or you will be more unhappy.....
  • My Garage
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1997 K1100LT 0302488 (R.I.P.)
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Offline Laitch

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Re: No start no dash lights except the green backlight...
« Reply #35 on: February 15, 2016, 08:20:07 AM »
This suggestion sounds a little weird: shouldn't it be possible to run two batteries? To lithium ones that is.
One very small one under the seat, and another small one anywhere else.
On that topic, does anyone worry about the spontaneous combustion with lithium batteries?
Quit trying to gild the lilly, jj. Buy a decent maintenance-free battery with the correct case dimensions and CCA rating then install it when you're ready to ride.

You want something reasonable to worry about? Worry about taking the correct line in that blind curve that spares you from being hit by an oncoming vehicle that's crossed over the centerline because its pilot was absorbed by worries of spontaneous combustion instead of attending to the task at hand.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline K1300S

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Re: No start no dash lights except the green backlight...
« Reply #36 on: February 15, 2016, 08:23:24 AM »
agree with scott.  you need a new charger, and a single new battery.  there is no reason to have two with the quality of AGM these days.  smaller, lighter, sealed, don't fade when stored like wet cells do. 

pic of the two candidates i mentioned above.  i use these batteries in my race cars too.  no issues spinning a high compression 2.5l engine.  both fit with no mods in a brick.







Project Thread "K75s Midlife Refresh"
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Offline rbm

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Re: No start no dash lights except the green backlight...
« Reply #37 on: February 15, 2016, 08:39:48 AM »
This suggestion sounds a little weird: shouldn't it be possible to run two batteries? To lithium ones that is.

One very small one under the seat, and another small one anywhere else.

On that topic, does anyone worry about the spontaneous combustion with lithium batteries?
It sounds like your suggestion is to replace one larger correct CCA AGM with two smaller lower CCA Lithium-based batteries in parallel.  It's not as easy as just parallel coupling the batteries together.  If you were to do that, the battery with the lower terminal voltage would draw current from the other in an attempt to reach equilibrium, depleting the sourcing battery's capacity.  You'd have to connect the two batteries together through some sort of electronic circuit that would balance the outputs from each.  The additional expense of that circuit makes the proper sized AGM alternative much more attractive.
  • Regards, Robert
Toronto, Ontario

1987 K75 - Build Blog @http://k75retro.blogspot.ca/

Offline Laitch

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Re: No start no dash lights except the green backlight...
« Reply #38 on: February 15, 2016, 08:41:44 AM »
pic of the two candidates i mentioned above.  i use these batteries in my race cars too.  no issues spinning a high compression 2.5l engine.  both fit with no mods in a brick.
I agree with Marshall except pick the one with the black case. A white case lowers resale value, unless the bike's white, of course.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline The Mighty Gryphon

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Re: No start no dash lights except the green backlight...
« Reply #39 on: February 15, 2016, 09:49:51 AM »
Just to throw a little bit more mud in the water may I suggest you look at this battery.

https://www.batterystuff.com/powersports-batteries/sYIX30L.html

I know that a lot of people here swear by the Odyssey battery, but these Scorpion batteries are pretty good as well.   Sure they're made in China, but so is your iPhone, GPS, computer and most everything electronic in your life.  I have two of them in my bricks that are now two years old.  They have never failed to start my bikes, even in the middle of winter when they have sat for over a month without being charged. 

The seller, Battery Stuff, is amazing.  Free shipping and I had the battery I bought the second day after placing my order.
  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline Laitch

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Re: No start no dash lights except the green backlight...
« Reply #40 on: February 15, 2016, 10:35:58 AM »
Sure they're made in China, but so is your iPhone, GPS, computer and most everything electronic in your life.
The solenoid for my snow plow is hecho en México and sold by Fisher. The Chinese version sold at NAPA is unreliable.
The battery for my truck is made in the USA. My LED driving lights are made in the USA. That's not "most everything" but I keep trying alternatives when I can.


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  • 1995 K75 89,000 miles

Offline Scott_

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Re: No start no dash lights except the green backlight...
« Reply #41 on: February 15, 2016, 11:02:07 AM »
I use the Westco 12V20P from amazon for $85

I easily get 5yrs+ out of them.
  • My Garage
1995 K1100LT 0302044
2017 FLHTK Ultra Limited
1997 K1100LT 0302488 (R.I.P.)
1997 R1100RT ZC62149(sold)
"One who does not ask questions is ashamed to learn" Danish proverb

Offline The Mighty Gryphon

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Re: No start no dash lights except the green backlight...
« Reply #42 on: February 15, 2016, 11:55:51 AM »
I'll see you in Hell, Scott.  Not using Odyssey will guarantee that I'll be so far down the hole that I'll be using vacation time to visit Laitch and the guys who use NGK plug wires who are spending eternity in the nicer parts.
  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline Laitch

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Re: No start no dash lights except the green backlight...
« Reply #43 on: February 15, 2016, 11:57:42 AM »
. . .  I'll be using vacation time to visit Laitch and the guys who use NGK plug wires who are spending eternity in the nicer parts.
You'll need a visa, Gryph, and believe me, they ain't cheap.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline The Mighty Gryphon

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Re: No start no dash lights except the green backlight...
« Reply #44 on: February 15, 2016, 12:14:01 PM »
Yeah, but I'll be down there with all the chicks who aren't supporting Hillary Clinton for president!   Eat your heart out Laitch.
  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline jjs1234

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Re: No start no dash lights except the green backlight...
« Reply #45 on: February 15, 2016, 06:51:41 PM »
About the charger, just bought it... It's a Schumacher 6a with float capability. Are you saying 6 amp chargers are to much? Or the battery is just damn old.

I'll go with a smaller agm one then
  • Northern California
  • 1984 K100
Check out my build! Complete tear-down!
Mr. Creative

Offline rbm

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Re: No start no dash lights except the green backlight...
« Reply #46 on: February 15, 2016, 07:02:23 PM »
Batteries should be charged with 1/10th their AH rating.  For a 20AH AGM battery, that's 2.0A maximum for 10 hours.  If the charger you have only outputs 6A and does not adapt to the characteristics of the battery, then yes it's too big and will cook the battery.
  • Regards, Robert
Toronto, Ontario

1987 K75 - Build Blog @http://k75retro.blogspot.ca/

Offline jjs1234

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Re: No start no dash lights except the green backlight...
« Reply #47 on: February 15, 2016, 10:10:19 PM »
Thanks for the info. I was told a trickle charger wouldn't work so I paid for the higher version which is what I have now. The one I was looking at was 750 miliamps.

I'll return it though.
  • Northern California
  • 1984 K100
Check out my build! Complete tear-down!
Mr. Creative

Offline Laitch

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Re: No start no dash lights except the green backlight...
« Reply #48 on: February 15, 2016, 10:32:03 PM »
Your Schumacher may have a 2.0A setting, jj. The basic model 600A has it. Take another look. Press the button until the light next to 2A small lights. Set it for 12V and it should work. You may not need another charger; you do need another battery.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline jjs1234

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Re: No start no dash lights except the green backlight...
« Reply #49 on: February 16, 2016, 10:47:10 AM »
Its an automatic switching one. I can not change it.
  • Northern California
  • 1984 K100
Check out my build! Complete tear-down!
Mr. Creative

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