ignition coil interchangeability - Motorcycle-Journal Forums

Ukraine Train · 05-17-2005, 08:41 AM

My '77 RM125 needs a new coil. New ones are about $60 and used ones are hard to find. Can I use a coil from a newer bike? I would probably have to change connectors on the primary side but that's not a problem. I'm just concerned that a newer coil might not be compatible with the old CDI box somehow. The one thing I've noticed is that since about '84 there's only one wire on the primary side, mine has two. Is one just ground?

Dave2122 · 05-17-2005, 10:58 PM

Dont try and mix and match as you can fry your CDI anmd cost yourself more money and headaches. Just purchase the correct one from Suzuki and be donme with it.

digipoi · 05-18-2005, 02:55 AM

Agree. 60 bucks aint nothing compared to the money pit you can create.

05-17-2005, 08:41 AM	#1 (permalink)
Ukraine Train Newbie Joined: Apr 2005 Posts: 4	ignition coil interchangeability My '77 RM125 needs a new coil. New ones are about $60 and used ones are hard to find. Can I use a coil from a newer bike? I would probably have to change connectors on the primary side but that's not a problem. I'm just concerned that a newer coil might not be compatible with the old CDI box somehow. The one thing I've noticed is that since about '84 there's only one wire on the primary side, mine has two. Is one just ground?

05-18-2005, 02:55 AM	#3 (permalink)
digipoi Seat Tester Joined: Sep 2004 Location: Honolulu Posts: 84	Agree. 60 bucks aint nothing compared to the money pit you can create. __________________ 2004 RM250 2004 DRZ125L 2006 TTR-90E 2004 JR50 1993 RM250 1990 KDX200

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05-17-2005, 10:58 PM	#2 (permalink)
Dave2122 Sprocket Pilot Joined: Sep 2004 Bike: Which one of the 9? Location: USA Posts: 887	Dont try and mix and match as you can fry your CDI anmd cost yourself more money and headaches. Just purchase the correct one from Suzuki and be donme with it.

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