BMW K bikes (Bricks)

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1Back to top Go down    Small battery mounting on Thu Feb 08, 2018 2:41 am

Gaz

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While I was browsing Bill's recent post "Money where my Mouth Is" the first photo made me think about an issue I had that might interest others.

On my K75 I use a battery that is the smaller physical size that fits neatly into the recessed centre section of the standard battery tray, as per Bill's photo below.



Note that the metal hold down plate is now sitting out over the rear edge of the battery. As you all know this plate also holds the coolant overflow bottle in plate.

On one of my "road less travelled" trips a.k.a. very rough road, I noticed that the battery had become dislodged from the centre recess and was leaning towards the rear mudguard. Of course I repositioned it and checked again at every stop until I got home.

My solution was to do away with the standard hold down plate and make a small bracket to hold the coolant bottle independent of the battery. Then I drilled/filed two slots in the battery tray forward and aft of the centre recess that would accommodate a strong webbing strap to hold the battery in place. I used this same method on my R80G/S battery over 10 years ago and have had no trouble with it.

One photo shows the bracket holding the coolant bottle and the other the strap around the centre of the battery.




Cheers


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Gaz
95 K1100LT 0232224; 90 K75 6427509; 87 R80G/S PD 6292136
    

2Back to top Go down    Re: Small battery mounting on Thu Feb 08, 2018 7:44 am

beemerphile

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The later coolant overflow bottles (mid-year change in 1993 I think) attach to the two bolts holding the front of the rear fender on. Not sure if there is room on the older bikes for this, or if something else is in the way.

    

3Back to top Go down    Re: Small battery mounting on Thu Feb 08, 2018 7:01 pm

Gaz

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You're right Beemer about the improved coolant bottle on the later bikes (my K1100 has one) but on the K75 the under seat toolbox takes up that space and I have no rear compartment to use for tools as the ducktail was removed during customising.

Cheers


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Gaz
95 K1100LT 0232224; 90 K75 6427509; 87 R80G/S PD 6292136
    

4Back to top Go down    Re: Small battery mounting on Sat Feb 10, 2018 2:00 am

Laitch

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I'm certain the battery mount and coolant reservoir mount photos will make your post here a useful one for many members, Gaz.
cheers


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1995 K75T 68,000 miles
    

5Back to top Go down    Re: Small battery mounting on Sat Feb 10, 2018 2:24 am

charlie99

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good to see how you did it Gaz

great work mate


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

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