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Author Topic: just a capacitor/battery query....  (Read 2059 times)

Offline TheBinkTonUp

  • Posts: 35
just a capacitor/battery query....
« on: Aug 22, 2012, 02:14:04 »
is it at all possible to run just a small capacitor with enough juice to start the bike up under the tank somewhere? so i can get rid of that fricken giant brick battery?? this is on a CB900 with no kickstart obviously... but it'd be fuckin' sweet if that were a possibility.. anyone ever done it?
CB 900F super sport

Offline Big Rich

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  • Posts: 9970
  • Heaven is so far away.
Re: just a capacitor/battery query....
« Reply #1 on: Aug 22, 2012, 02:19:37 »
Nope - capacitors don't hold that much electricity. It would have to be able to power the coils and have enough to spin the starter motor as well.

Have you looked into a Shorai battery (or similar)?

Offline hillsy

  • Posts: 4106
Re: just a capacitor/battery query....
« Reply #2 on: Aug 22, 2012, 02:21:49 »
Smallest you can get would be a Li FE battery.

Offline TheBinkTonUp

  • Posts: 35
Re: just a capacitor/battery query....
« Reply #3 on: Aug 22, 2012, 02:27:56 »
thanks guys, i'll just look into the smallest battery i can get my hands on.
CB 900F super sport

Offline raptormeat

  • Posts: 390
Re: just a capacitor/battery query....
« Reply #4 on: Aug 22, 2012, 04:29:22 »
awesome skate deck seat
Minimal CB378 Brat
http://www.dotheton.com/forum/index.php?topic=53242.0

DTT Red, White, and/or Black 360 Club - We also discriminate!!

Sexy RD350 Cafe Thing
http://www.dotheton.com/forum/index.php?topic=55882.0

Offline trek97

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  • Posts: 5193
Re: just a capacitor/battery query....
« Reply #5 on: Aug 22, 2012, 07:17:23 »
could you please post some better pics of the machine.  it looks sweet.  sorry cant help w battery info.

Offline danejurrous

  • Posts: 443
Re: just a capacitor/battery query....
« Reply #6 on: Aug 22, 2012, 11:20:30 »
they are not the cheapest things but here is one:

http://www.atbatt.com/product/24414/motorcycle/honda/cb900f-900cc-80-82/battery

Shorai batteries are awesome enough CCA (Cold Cranking Amps) to start the bike and run what is needed yet small enough to do the shot put with.

Disclaimer: danejurrous in no way shape or form suggests that you should do the shot put with any battery. 
81 GS750L - "it was my intention to "beat the 'L' out of it" - Buzznichols
79 xs650 Special II (chopping block)
82 xr500r
02 GSF1200S Bandit

Offline TheBinkTonUp

  • Posts: 35
Re: just a capacitor/battery query....
« Reply #7 on: Aug 22, 2012, 13:19:38 »
HAHAHAHA ^
CB 900F super sport

Offline TheBinkTonUp

  • Posts: 35
Re: just a capacitor/battery query....
« Reply #8 on: Aug 22, 2012, 13:39:15 »
side view of this bratty bitch
CB 900F super sport

Offline BobaChris

  • Posts: 27
just a capacitor/battery query....
« Reply #9 on: Aug 22, 2012, 13:49:20 »
Curious as to what exhaust you are running. I have a cb900 as well and the one my bike came with is rusted and dented, so in the market for a new one.

Offline TheBinkTonUp

  • Posts: 35
Re: just a capacitor/battery query....
« Reply #10 on: Aug 22, 2012, 14:26:23 »
its a "pro sport" exhaust.... but if it makes you feel any better it's also rusty, dented and ratty loud haha
CB 900F super sport