Author Topic: Lithium battery install  (Read 1216 times)

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Offline cookslife2.0

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Lithium battery install
« on: April 19, 2022, 11:10:02 pm »
I recently acquired a 72 cb750 with all kinds of crazy wiring. So I pulled the harness, and will install a new one. I currently don’t have any gauges, horn, or turn signals. It is also with out any fuses. I’m very new to this bike and im looking at switching to a lithium battery so I can hide all my wires under the seat. Any suggestions on batteries and also, do I need fuses if im running so little electrical items. Not sure what the terminology is here. Any ideas or help would be greatly appreciated
Patrick

Offline RAFster122s

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Re: Lithium battery install
« Reply #1 on: April 19, 2022, 11:52:12 pm »
Where's the popcorn?

Are you serious or are you just a late April 1st visitor?
Got any photos you can share. Pardon my skepticism but with one post I would need quite a bit more traffic from you to take your request seriously. You will need about 4-5 posts before you can post ages to the site but you can link to your images you upload to a third party hosting site before that...
Just have to make those images viewable by others of course.
Introduce yourself in the new members area of the forums and tell others about yourself and what you are dealing with... Photos are always helpful...

Welcome to the forums. Edit your profile and add your general location and add a signature line to tell others about your bike in your signature line. Unless you want to tell everyone repeatedly what ya got in every new thread about the bike in question.
I don't document my collection for personal reasons.
I have one of this forum's targeted bikes...not a 750.


As to fuses, depends on how much you like fire... fuses are always recommended for anything.
Do you park your motorcycle near a car?
Do you park it in a building's garage or carport or is it in a parking place outside an apartment complex?
Insurance companies like to deny claims for all kinds of reasons, you really want to wire your own bike with what appears to be zero experience. Because if you have a claim then you are going to find an adjuster be your worst enemy as it is their jobs to minimize payouts from most companies...
David
David- back in the desert SW!

Offline cookslife2.0

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Re: Lithium battery install
« Reply #2 on: April 20, 2022, 12:07:52 am »
I have a 81 cb750 that runs great. I wanted a project, so I can learn how to work on a motorcycle, and in turn hopefully take that knowledge and make sure my 81 keeps running. I’ll post pictures. Introduce myself and whatever else is customary. Not trying to over step, I’m just looking for some direction outside of what I’ve found in YouTube videos. Best.

Patrick
Patrick

Offline cookslife2.0

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Re: Lithium battery install
« Reply #3 on: April 20, 2022, 12:16:39 am »
This is where I’m at, removed the harness, ignition, regulator, rectifier, headlight and taillight.
Patrick

Offline calj737

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Re: Lithium battery install
« Reply #4 on: April 20, 2022, 05:29:47 am »
Yes, you need fuses.

The basics of the electrical on your bike are: battery is hooked up to supply power to the ignition, electric starter, and the “alternator” (where it gets a resupply of power once running). These circuits are activated by the key switch. Fuses are generally oriented to protect and separate the components from one another, while the fuse protects the wiring to those circuits.

Simply replacing your battery with a lithium unit is not an involved process, but should involve other considerations, like the Regulator/Rectifier (alternator in your car). The stock unit is not well-suited for lithium batteries so replacement is advised.

If you are as nascent with electrical as this post intimates, you might be better off reaching out locally in your network to obtain some hands-on help, unless you intend to restore the electrical to “stock” condition with “stock” components. Otherwise, a heap of splicing, soldering, crimping, and routing is in your future.

For a general understanding, attached is a very simplified diagram of minimum wiring requirements for your bike.
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline cookslife2.0

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Re: Lithium battery install
« Reply #5 on: April 20, 2022, 08:44:16 am »
This diagram is great. I really needed something more straightforward than the one in the manual. Thank you.
Patrick