Ac CDI or DC cdi

Al · 04-29-2019, 03:40 PM

How do I know which CDI I have? I know it is a 5 wire.
Thanks

2LZ · 04-29-2019, 05:28 PM

Others will chime in on the technical stuff but I went on Amazon and found the exact connector(s) to the one I had to replace.

Al · 04-29-2019, 09:52 PM

Did u get a performance CDI and did it make a difference? The technical stuff is pretty straight forward when I ended up on a better web page

Bruces · 04-29-2019, 11:02 PM

Generally speaking if there are two wires attached to the two prong connector it’s an ac cdi ,and if there is only one wire it’s a dc cdi .If you can turn your headlight on without the engine running ,you have a dc system .There are exceptions but this is a good start to figuring it out

NzBrakelathes · 04-30-2019, 01:35 AM

Quote:

Originally Posted by Al

How do I know which CDI I have? I know it is a 5 wire.
Thanks

Sounds like DC
The 2 wire connector does it have a black only wire? That’s 12v DC with ignition on?

If that wire is red n white then I’d expect a black n yellow with it
Black n yellow is the coil wire red n yellow is AC with about 75v AC while running or cranking
That info gives you enough to determine what you have

Al · 04-30-2019, 08:46 AM

My cdi has one white plastic clip with 6 available spots, 5 are filled with wires. I will do some testing tonight. I am going to hijack my own thread.......what is the tool called that stops the clutch from spinning? I am trying to remove the center bolt.

Hellkitty · 04-30-2019, 08:17 PM

Quote:

Originally Posted by Al

My cdi has one white plastic clip with 6 available spots, 5 are filled with wires. I will do some testing tonight. I am going to hijack my own thread.......what is the tool called that stops the clutch from spinning? I am trying to remove the center bolt.

I assume you're talking about the flywheel, not the clutch. I use a cheap nylon strap wrench just like this one. Works great. It's described to be an oil filter wrench but it works great for griping the flywheel. An impact wrench would to the trick also.
https://www.amazon.com/Lumax-LX-1810...%2C199&sr=8-26

Al · 05-01-2019, 09:44 AM

Thanks for all the help

Hellkitty · 05-01-2019, 08:53 PM

my bad, that is the clutch. You can stick a penny where the gears mesh to keep the clutch from turning, the penny is softer than the gears so it wont damage the gears.

FLASHLIGHTBOY · 05-02-2019, 06:23 PM

Check on youtube…. there is a good video on this.... the real test is... check the ignition wire and if the power goes off and on when you turn the ignition switch,.. then it is a dc cdi

FLASHLIGHTBOY · 05-02-2019, 06:24 PM

use a tool to turn this... as it makes it easy... no tool... just a sharp center punch or so... check out the tool on ebay…

04-29-2019, 03:40 PM	#1
Al Join Date: Jun 2017 Posts: 73	Ac CDI or DC cdi How do I know which CDI I have? I know it is a 5 wire. Thanks
	0

04-29-2019, 05:28 PM	#2
2LZ Join Date: Mar 2010 Location: Volcano, Ca Posts: 7,082	Others will chime in on the technical stuff but I went on Amazon and found the exact connector(s) to the one I had to replace. __________________ "Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350
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05-02-2019, 06:23 PM	#10
FLASHLIGHTBOY Join Date: May 2009 Location: SASKATOON Posts: 1,161	Ac/dc cdi Check on youtube…. there is a good video on this.... the real test is... check the ignition wire and if the power goes off and on when you turn the ignition switch,.. then it is a dc cdi __________________ DEALER FOR ZSTAR & GIO PRODUCTS, TAOTAO ABIBABA ATV ETC
	1

05-02-2019, 06:24 PM	#11
FLASHLIGHTBOY Join Date: May 2009 Location: SASKATOON Posts: 1,161	clutch nut use a tool to turn this... as it makes it easy... no tool... just a sharp center punch or so... check out the tool on ebay… __________________ DEALER FOR ZSTAR & GIO PRODUCTS, TAOTAO ABIBABA ATV ETC
	0

04-29-2019, 09:52 PM	#3
Al Join Date: Jun 2017 Posts: 73	Did u get a performance CDI and did it make a difference? The technical stuff is pretty straight forward when I ended up on a better web page
	0

04-29-2019, 11:02 PM	#4
Bruces Join Date: May 2018 Posts: 1,578	Generally speaking if there are two wires attached to the two prong connector it’s an ac cdi ,and if there is only one wire it’s a dc cdi .If you can turn your headlight on without the engine running ,you have a dc system .There are exceptions but this is a good start to figuring it out
	1

04-30-2019, 08:46 AM	#6
Al Join Date: Jun 2017 Posts: 73	My cdi has one white plastic clip with 6 available spots, 5 are filled with wires. I will do some testing tonight. I am going to hijack my own thread.......what is the tool called that stops the clutch from spinning? I am trying to remove the center bolt.
	0

05-01-2019, 08:53 PM	#9
Hellkitty Join Date: Dec 2017 Posts: 216	my bad, that is the clutch. You can stick a penny where the gears mesh to keep the clutch from turning, the penny is softer than the gears so it wont damage the gears.
	2