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Coil / CDI Problem

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lukehanham
Two Stroke Sniffer



Joined: 19 Feb 2015
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PostPosted: 14:28 - 21 Oct 2015    Post subject: Coil / CDI Problem Reply with quote
So my 50cc Gilera RCR has got an issue, it has no spark.

I have this CDI/Coil thing, They are not seperate ( like on normal mopeds )

https://puu.sh/kSi4b/4b65183920.png

Where should i start with testing? and if that test fails what should i do next?

I have a digital multimeter which i can use too
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Iain.
Could Be A Chat Bot



Joined: 04 Dec 2014
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PostPosted: 14:45 - 21 Oct 2015    Post subject: Reply with quote
No idea, but have some karma for intending to test it! Thumbs Up
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lukehanham
Two Stroke Sniffer



Joined: 19 Feb 2015
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PostPosted: 15:18 - 21 Oct 2015    Post subject: Reply with quote
Ahaha, thanks!

Also the black wire is not connected anywhere, it never has been and has been working fine without it!
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WD Forte
World Chat Champion



Joined: 17 Jun 2010
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PostPosted: 16:06 - 21 Oct 2015    Post subject: Reply with quote
That black wire with an eyelet is more than likely a ground
Leave it dangling, they just fit these for laughs
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Just_James
Could Be A Chat Bot



Joined: 29 Aug 2014
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PostPosted: 20:37 - 21 Oct 2015    Post subject: Reply with quote
WD Forte wrote:
That black wire with an eyelet is more than likely a ground


^^ This.
That is the ground wire and is usually fitted where you bolt the unit to the frame.

I've never tried to test one but it's the standard coil unit for AM6 and you can pick up a brand new one for <£15 delivered.

Try hooking up the ground wire before spending your hard earned though Thumbs Up
____________________
Current Bikes / Projects: 1999 Rieju RS1 50
Previous bikes - 1986 DT125R (field bike), 1989 KX250, 1980 KX420 (with 500cc big bore), 1992 YZ250, 1988 KX500, 1989 XR250R, 1988 VFR400R NC24, 1999 Cagiva Mito 125, 2008 Rieju RS2 50 , 1993 Honda NSR 125
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lukehanham
Two Stroke Sniffer



Joined: 19 Feb 2015
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PostPosted: 21:30 - 21 Oct 2015    Post subject: Reply with quote
This is a second hand one in 'working condition'

I'll connect the ground up,

any tests i can do with resistance, voltage etc?
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lukehanham
Two Stroke Sniffer



Joined: 19 Feb 2015
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PostPosted: 21:02 - 22 Oct 2015    Post subject: Reply with quote
Hate to bump my own topic, but i would be greatly appreciative of anyone advice on getting this fixed myself.
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Dansaunders10...
Derestricted Danger



Joined: 30 Sep 2015
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PostPosted: 08:32 - 23 Oct 2015    Post subject: Reply with quote
What I did when I had no spark on my DTR 125 is what I was told to do by helpful guys on here is to check the resistance with ur multi so YouTube how to check coil resistance and check results to ur specs in ur service manual, on my DTR I replaced the coil still no spark so on the wait for a stator and fingers crossed it's not the cdi hope I kinda helped a bit. Dan
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