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GS500 Brat (Cafe now...)

Started by moto, March 19, 2017, 03:42:08 PM

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Suzi Q

Sharp looking! What did you decide as for the little lady?
Deals on Amsoil if you want it. PM me for details.

moto

Quote from: Suzi Q on June 02, 2017, 07:25:17 PM
Sharp looking! What did you decide as for the little lady?
Foot pegs  :D

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moto

Today I got my rusty tank bracket stripped back to shiny metal and welded onto the subframe, it also has bolt fixings from the old frame which became the perfect place for mounting the stopcock!  Win win!

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moto

So having looked at the battery's available on the market they all seem to be over priced and too big for this project, so I'm building my own which will have the same power as a anti-gravity 4 cell but will have a much smaller profile. The bits have arrived, I'll post up my progress shortly!



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cbrfxr67

Can you post up a how to while you're at it?  I'm really interested in doing something similar.
"Its something you take apart in 2-3 days and takes 10 years to go back together."
-buddha

moto

So things you need:

100w broad tip soldering iron (this is important, you want the heat but you want it quick so you don't cook the battery cells, the broad tip does this well)

Solder

Flux (your soldering to aluminium)

Brillo pad scourer

Cotton buds/ qtips

Battery cells (A123)

Black tape / shrink wrap.

Battery Bars (small solder-able connections needed for the current drawn - could be made easily, I just found them cheap online)

4 guage black and red multistrand cable.

Volt meter.

1) check the battery voltages - First thing I did was make sure they were all the same, if they're not they need to be charge up so that they are, this makes life alot easier during the life of the battery.

2) flux and tin the battery Bars.

3) clean the cell ends that are to be soldered with the Brillo pad, this scuffs them up and makes them easier to solder.

4) flux and tin the cells, this needs to be done as quickly as possible to ensure that you don't cooks the cells.

5) line the cells up in series, positive to negative and solder them together. You need 4 cells to get to 12-13 Volts as they are 3.2v each. ( If you need more ampage then run a second set of 4 in parallel)

6) solder the battery  bars to the cells.

7) solder the 4 gauge cable to the end positive and negative cells. ( This required alot of tinning of the cable to make the process quick and not cook the cells)

8) wrap the cells in tap or shrink-wrap.

9) solder a connector of your choosing to the cables. ( I used a 175a Anderson connector)

10) you can choose to install a set of balancing charger cables, I chose not to as all the cells are equally charger, and should stay that way when charged by the bike)

11) sit back and admire your handywork.










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moto

#126
This is it installed on the bike. It's tiny. ;D

I also know it has some serious Juice as I accidentally touched both terminals together and it sent my arm into cramp for the best part of 10 minutes! I'll wire it up tomorrow and see how it does!

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ShowBizWolf

Wow, very very cool!!! :cool:
Superbike bars, '04 GSXR headlight & cowl, DRZ signals, 1/2" fork brace, 'Busa fender, stainless exhaust & brake lines, belly pan, LED dash & brake bulbs, 140/80 rear hoop, F tail lens, SV650 shock, Bandit400 hugger, aluminum heel guards & pegs, fork preload adjusters, .75 SonicSprings, heated grips

crackin

Wow thats wicked, any idea on the cold cranking amps?
No matter what i do to it, it's still a GS
It's not how fast your bike is, it's how long you are prepared to hold the throttle on.

moto

It should be about 120 amps

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moto

#130
More goodies arrived today  :woohoo:!

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Toner

Why can't they come out of the factory like this?
No way I'd ever be able to make this.
can't wait to see the end result.

moto

#132
Thanks Toner, it's getting there!

I also got the bike wired up in a temporary state last night, happy to say that the built battery turns the bike over with ease! Happy days! :woohoo:

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89gS500_Kirk

Please build and sell those batteries, I will be first in line to buy one.... GREAT thread and good luck continuing the AWESOME work.

iamhiding

i've toyed with the idea of making batteries up for projects in the past and it's damn cool to see someone actually following through with it. solid work as always moto  :thumb: :cheers:
current project list:
//cbr 600 f3 fighter
//gsxr 1100 mental oldskool supersport
//gs500 daily rat tracker cafe fighter that changes every couple of month... cafe fighter?

moto

So this evening I finally got the seat base cut out of 9mm ply, it's really starting to take shape now and you can see the thin profile of the rear. All of the electrics including the battery are under the seat base or under the tank! Just needs foam and upholstery and we're almost there!

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qcbaker

Looking good so far, mate. What kind of seat are you planning?

moto

Something along the lines of these without the kick,  but I'm really torn on the colour with the light beige tank.

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moto

#138
I've had a quick Photoshop.. what do you guys think?



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crackin

I think it needs a hump. Maybe a glass tail that you could take off when you take ya miss' out?
No matter what i do to it, it's still a GS
It's not how fast your bike is, it's how long you are prepared to hold the throttle on.

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