Ignition System Wiring Design & Diagnostic On A Vintage Honda Motorcycle (1965-1977)

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Buy a Test Light: www.common-motor.com/test-lig...
Read our full techinical article: common-motor.zendesk.com/know...
Be sure to watch our understanding ground circuit and positive circuit before troubleshooting your ignition circuit:
• Understanding the Grou...
• Understand the Positiv...
Like most of the circuits on a vintage Honda motorcycle, the ignition system circuit is incredibly simple. With basic knowledge of the circuit and test light, you can diagnose issues and fix them to keep cruising down the road. In this article, we are going to help you understand the basics of the factory Honda ignition system wiring and how to individually test each component to discover what is at fault and what works as it should.
Buy parts and pieces for your vintage Honda motorcycle at www.common-motor.com
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Need help with your vintage Honda? Attend the CMC Repair Academy and watch the full playlist of repair videos for your motorcycle:
• CB175/CL175/SL175/CB20...
• CB350/CL350/SL350
• CB360/CL360
• CB450/CL450/CB500t
• CB550 / CB500F
• CB750
• CB350F / CB400F
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Contents of this video:
00:00 - Intro
00:25 - Ignition system differences
00:51 - Tracing the circuit
03:08 - The simplified ignition system wiring diagram
03:16 - The best way to test the ignition circuit
03:53 - Testing continuity through the points
06:51 - Testing for 12v positive power at the ignition coils
08:48 - Testing for 12v positive power through the ignition coils
10:21 - Testing the functionality of the ignition coils
13:43 - Why is ignition timing important?
14:34 - Wrap-up

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Опубликовано:

10 июл 2024

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Комментарии : 23

@btfeltcher 4 месяца назад

I’m so grateful for your videos. You are saving me HOURS of staring at diagrams and trial/error testing. Therefore, you are keeping me interested in the project. Thank you and the vintage Hondas I have thank you!

@windfall35 3 месяца назад

Common Motor Collective are my go-to channel on anything involving my classic Honda’s - clear, great filming so that I can see what we’re looking at and they talk out loud about what goes into their diagnosis and trouble shooting thinking. The Gold Standard- Thanks guys!

@williamhaines856 Год назад

thank u brendan very well told we beginners need it told slow and clear every detail ur the best

@user-up3xp7xb9r Месяц назад

Beautifully explained! Thank you SO MUCH form Italy& UK !

@delwood77 Год назад

I've been rebuilding bikes in my spare time since the late 1980's and I've never seen this process explained so clearly and thoroughly. My bike mentor and guru back then was a great mechanic and man named David Brigham Young (Salt Lake City) and I always wished there was some way to capture and share his knowledge with the bike world. I feel like you guys are accomplishing that work. Thank you.

@Bertoslav 2 месяца назад

Really hoping this helps me get my bike on the road, I'll try it tomorrow. Thanks!

@mg-lz3kk Год назад

Another outstanding tutorial. Thanks for sharing.

@kaa5666 Год назад

Very well explained. Beautiful video. thank you guys.

@johnpawson7400 2 месяца назад

Thank you so much from the UK

@andyschuldt7580 5 месяцев назад

Great explanatory video sir. Thx for taking the time to explain the system in detail.

@user-uz8fo6mu6f 4 месяца назад

great video

@paulaskill3660 Год назад

Agreed! A super tutorial well explained. Many thanks

@kermitthefrog6363 Год назад

Thanks again for a great video it is appreciated!!

@Jepson75 Месяц назад

I'm probably a bit stupid at the moment. But where do I get the +6V to the coil on my XL250 1973? No spark, and I can't find out why. Coil works and spark plug's new. The bike did run TO the MOT, during the MOT....but not on the way home, and not since.

@zebradrz Месяц назад

What happens when you have power coming off your points all the time? My test light doesn’t shut off when the points open and close.

@flythenride Год назад

Great explanation of the ignition system… Thank you! 🙏🏻 I have a 1975 CB400 Four that’s been upgraded to an electronic points system. Would this video apply to it as well? Thanks in advance.

@plusblood5101 3 месяца назад

Supercharged video

@fahadmuhammadnamadala5043 7 месяцев назад

Hello B...... Can a universal coil with the specifications of a CB350/400/450/500/550 HONDAs be compatible with the HONDA CM200T TWINSTAR?????

@blakeepperson3902 Год назад

I have yet to start my bike. Almost there. I’m setting points and testing the electrical system. My ignition switch has 3 settings. Is this similar to the kill switch (off/on/off)? Dumb question but double checking

@breakingthemasks 25 дней назад

As I understand it, thatbos commonly off/ run/ and thr last position can be a sort of "standing/parking mode" where the lights are on while the bike is stopped. Something about being safer if you're pulled off on the shoulder of a road because then at least cars can see your taillights and such.