Author Topic: any probs i should look out for leaving battery disconnected 94 k75s?  (Read 5032 times)

Offline ludwig

  • ^ Motobrick Curious
  • Posts: 69
maybe a dumb question:
 i'll need to remove the battery to keep on a charger for a month or two instead of going through the accessory socket with the battery installed...
will this wreak any havoc on the ecu or abs being disconnected from power?
already looked in the lieberry and scanned prev posts and just trying to cover my bases.

thanks for indulging a newbie question

ludwig
  • manhattan
  • 94 k75s 95 k75s 81 Yamaha XS850s (gone but never forgotten)
ludwig

Offline WayneDW

  • ^ SuperNatural Motobricker
  • Posts: 638
Re: any probs i should look out for leaving battery disconnected 94 k75s?
« Reply #1 on: September 13, 2014, 10:12:10 PM »
Nope, I do it every winter.

The clock will forget the time, though.
  • Minneapolis, MN, USA
  • 1992 K75RT

Offline ludwig

  • ^ Motobrick Curious
  • Posts: 69
Re: any probs i should look out for leaving battery disconnected 94 k75s?
« Reply #2 on: September 13, 2014, 10:54:28 PM »
Danke Schoen Wayne!
  • manhattan
  • 94 k75s 95 k75s 81 Yamaha XS850s (gone but never forgotten)
ludwig

Offline pdg

  • ^ Proficient Motobricker
  • Posts: 290
Re: any probs i should look out for leaving battery disconnected 94 k75s?
« Reply #3 on: September 13, 2014, 11:03:18 PM »
If it's only a couple of months and you're not leaving the battery outside in freezing temps then I wouldn't bother 'keeping it on a charger'.

I'd remove it, charge it and put it on the shelf - remembering of course to cover the terminals to stop accidental shorts. Then, in a couple of months when I need to reinstall it, I'd check the state of charge and put it back in the bike. Honestly, after such a short time a good battery is unlikely to need a second charge to go back into service.

Of course, opinions on that process vary....


The fuel, ignition and ABS ECUs aren't intelligent enough to realise you have removed the battery - in essence, it's exactly the same as when you turn the key to the 'off' position as far as they are concerned.
1988 K75S

Offline Grim

  • ^ Proficient Motobricker
  • Posts: 494
Re: any probs i should look out for leaving battery disconnected 94 k75s?
« Reply #4 on: September 14, 2014, 10:06:14 AM »
Bike will be fine. Don't forget to put some stabil in the fuel.

I'm of the camp if your going to leave fuel in it for under 6 months leave it will a full tank. The air space is he problem as that's where condensation will form. Less air space the better. 
6 months I'd drain the fuel tank and if not outside in the weather I'd leave the gas cap popped trying to prevent condensation. 

If you have ABS you will need to reset it but no big deal.
1995 Morea Green K1100LT

Offline Motorhobo

  • +25 years of K75
  • ^ Quintessential Motobricker
  • Posts: 1530
Re: any probs i should look out for leaving battery disconnected 94 k75s?
« Reply #5 on: September 14, 2014, 10:13:44 AM »
Bike will be fine. Don't forget to put some stabil in the fuel.

If you have ABS you will need to reset it but no big deal.

I've never had to reset ABS after battery disconnect. Does that only apply to long periods of disconnection -- I thought the ABS system rebooted from its current state every time it gets power.
1994/1995 K75 ABS Frankenbike: original engine 136k miles, frame from Gary Weaver (RIP), 173k miles -- Current Odometer: 198k miles
1994 K75 since 2013, 82,000 mi (19k mine) w/California Sidecar Friendship II Sidecar & Black Lab 'Miss B' - RIP

Past: 1974 Honda 550/4 (first bike), 1994 K75 (sold), 1995 K75 ABS (parts bike), Sidecar Dog & Best Bud 'Bo' - RIP

Offline ludwig

  • ^ Motobrick Curious
  • Posts: 69
Re: any probs i should look out for leaving battery disconnected 94 k75s?
« Reply #6 on: September 14, 2014, 10:43:11 AM »
Thankyou for the input guys... I guess I'll find out when I go
To restart in hopefully less than two months whether or not the
Abs must be reset as there are differing opinions.  :popcorm

It will be outside under a cover but I am topping the tank full of fresh clean super with a shot of Startron run through
The system after fuel removal and filter replacement due to
An issue on a separate thread.

I really appreciate this forum..
Tons of gracias!
  • manhattan
  • 94 k75s 95 k75s 81 Yamaha XS850s (gone but never forgotten)
ludwig

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