Understanding the Ground Circuit on a Vintage Honda Motorcycle
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- Опубликовано: 10 июл 2024
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We often compare the electrical system on a vintage Honda motorcycle to a sandwich. It is easy to get caught up with the multicolor birds' nest of wires but those are only the sandwich toppings. Before adding your toppings, you need to understand the solid base that makes the sandwich, the bread. In this video, we give you the foundational knowledge to understand the ground circuit, the bottom bread.
The ground circuit shows itself in various ways on a vintage Honda motorcycles like the CB175, CB200, CB350, CB360, CB450, CB550, and CB750 families of motorcycles. It consists of not only the metal frame and pieces on the motorcycle but also the dedicated ground wires that run through the harness. Be sure to watch until the end of the video to get a better idea of what to expect with the ground circuit and a few idiosyncrasies in the way it is implemented.
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Contents of this video:
00:00 - Introduction
00:28 - Why understanding ground is so important
01:14 - How does the ground system work?
01:49 - On-bench demonstration of the ground system
02:59 - How to test what is grounded
04:38 - Understanding why some parts are not grounding
05:37 - How to deactivate ground
05:55 - The dark green ground circuit
08:45 - Front turn signal grounding path
11:00 - Handlebar grounding path
11:30 - Important points to takeaway
12:54 - Conclusion 
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You are a briiliant teacher, I have been working on motorcycles since 1963 and still learn from you.
Battery handling is easy to remember:
Removing the battery is a subtraction: Disconnect minus (-) first.
Installing the battery is an addition: Connect plus (+) first.
Otherwise, you might bridge the frame and the positive terminal with your screwdriver while loosening/tightening the positive battery terminal, branding your favorite screwdriver with the mark of shame… or burn your whole bike down.
Just picked up a 1970 CL450 project and found your channel in the process, wow the information you share is so helpful, thorough and inspiring!
Thanks for sharing your knowledge 👍
I inherited my father in laws CL200. The motor siezed 30 years ago. Over those past 30 years several people have partially dismantled it in an attempt to fix it. This video will help with the wiring anyway. Thanks
You did a very good job explaining this electrical system. Well done and much appreciated
This was extremely helpful. Electrical is definitely my weakness, and this really helped me understand a key part of the system that I was missing. Thanks!
Glad your pointing out to folks the necessities of checking all these terminal connections in relation to ground. Many of these connections impact the overall running trim of these systems that rely heavily on that wire being there.
That's an excellent and easy-to-understand explanation, thanks Brenden.
Amazing!! I've always had trouble wrapping my head around wiring and ground. This video helped so much. Thank you ❤
Thank you for such easy to understand explanation of the ground in a Honda motorcycle. This has really helped thanks again!
Timely video! Working through this right now
great as allways guys! you make me love my little honda more and more.
This was a really helpful and education video. Awesome job. Thank you for making this kind of content!
Thank you for the video and the easy explanation.
Thanks so much for this informative video. I was never clear on the purpose of the green wire in some of the connections.
Brenden, you seem to really be grounded yourself.
Buh bum tssss.....
Great video, extremely helpful 😊
Very informative. Thank you
Good explanation!!!
Thanks again!
Thank you 👏
I always think to myself in the tune of that bing crosby song "always first add the positive, always first remove the negative"
Your a genius. Preciate you. I got it,
Great video do the cdi need i
To be grounded to
Electricity is so much easier to understand and explain if you can visualize the flow of electrons.
Hello, how are you, I would like to know if you can make a video of the complete electrical system of a honda cb 400f
I have 3 old Honda's helix, reflex, and shadow.
Where you been all my life? Actually, I don't have any electrical problems (yet) but enjoyed your video just the same. Thanks
hi .thanks for the video. i have a yamaha xs400.with the bike running and lights on when i put the indicators on the lights dim in and out slightly as the indicators flash.any idea's 🤔
Question: if negative is grounded then why doesn't the battery discharge when we put our bike on the stand so that the earth takes all the charge since the actual flow of electrons is from negative to the positive.
Hey there Brenden, Was wondering if you had any advice for me. Ive had battery issues for awhile now on a 2019 honda CB1000R, and just an example of the most recent issue - Battery died while I was out after i parked at restaurant. I picked up a new batter from auto store installed it and drove home. once home i connected battery to a battery tender. I did not ride the bike again for a few months and it remained on the tender the entire time. when i tried to start it today it showed voltage around 12.8ish but could not fully turn over the engine. ive had this same issue for awhile now. im several new batteries in :(. Any advice?
Hi I have a 1969 Honda cl350 and I don’t seem to have that handle bar earth wire any ideas as my bars don’t seem to be earthed ?
I have a 1966 Honda S90, the past owner has the battery wired up with a positive ground. I plan on changing to a negative ground when I need a new battery. Has anyone encountered this and will I need to change any existing electrical components? Help
90% of my wiring issues on my cb500/550s always turn out to be a ground wire.
Another great video, thank you. Electrical gremlins suck. Will you guys be fixing cams and rockers again anytime soon?