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Tintop · 12-03-2009, 08:46 PM

I have a CDI and a circuit diagram for the Suzuki TF125.

What I need to know is which wire connects to the magneto charging coil, and which wire connects to the trigger coil. The circuit diagram shows the wiring but does not differentiate between the charging and trigger circuits.

Reason is that I have a Tecumseh engine on my ride on mower and the CDI has failed. A nos CDI for the model costs nearly $900, (I can get a Chinese copy of a 12hp Honda engine for less than that) but I do have a couple of Suzuki CDI's

Thanks Ian F

Kenneth_Moore · 12-04-2009, 09:45 AM

Nobody really knows.

seruzawa · 12-04-2009, 11:37 AM

Connect it one way. If it doesn't work then switch the wires the other way.

Kenneth_Moore · 12-04-2009, 11:56 AM

Cut the blue wire...no WAIT, cut the RED wire...

Tintop · 12-04-2009, 01:24 PM

Quote:

Originally Posted by Kenneth_Moore

Nobody really knows.

Is your answer on behalf of all members?
Just because you may not know does not mean that 'nobody' knows.

There is a possibility that someone somewhere has a stator plate sitting on a bench and is able and willing to trace the connecting wires to their respective coils and help me solve my problem.

Here's hoping.

Tintop · 12-04-2009, 01:33 PM

Quote:

Originally Posted by seruzawa

Connect it one way. If it doesn't work then switch the wires the other way.

I thought of trying that, problem is that the charging coil produces quite a high AC voltage, where the trigger coil is just a low voltage pulse.

If I get it the wrong round the first time, it probably won't work the second try.

seruzawa · 12-04-2009, 01:55 PM

Quote:

Originally Posted by Tintop

I thought of trying that, problem is that the charging coil produces quite a high AC voltage, where the trigger coil is just a low voltage pulse.

If I get it the wrong round the first time, it probably won't work the second try.

Pull the coils out and see if you can trace the wires. You can use a VOM with very sharp probes to probe through the insulation without ruining it.

Tintop · 12-04-2009, 03:09 PM

Sadly - all I have is a CDI (left over from repairs to a neighbours bike) and a Suzuki manual.

I was hoping that I would not have to borrow the bike back so I could pull it apart.

Ian F

12-03-2009, 08:46 PM	#1
Tintop Registered Member Join Date: Dec 2009 Posts: 4	TF125 Magneto Wiring I have a CDI and a circuit diagram for the Suzuki TF125. What I need to know is which wire connects to the magneto charging coil, and which wire connects to the trigger coil. The circuit diagram shows the wiring but does not differentiate between the charging and trigger circuits. Reason is that I have a Tecumseh engine on my ride on mower and the CDI has failed. A nos CDI for the model costs nearly $900, (I can get a Chinese copy of a 12hp Honda engine for less than that) but I do have a couple of Suzuki CDI's Thanks Ian F

12-04-2009, 09:45 AM	#2
Kenneth_Moore Registered Member Join Date: Jun 2007 Location: VIsiting the GIft Shop in the Pit of DIspair Posts: 7,118	Nobody really knows. __________________ www.kennethmoore.org

12-04-2009, 11:37 AM	#3
seruzawa Robby Join Date: Nov 2001 Location: 8501 ft. Posts: 16,803	Connect it one way. If it doesn't work then switch the wires the other way. __________________ I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near the Tanhauser Gate. All those moments will be lost in time, like tears in the rain.

12-04-2009, 11:56 AM	#4
Kenneth_Moore Registered Member Join Date: Jun 2007 Location: VIsiting the GIft Shop in the Pit of DIspair Posts: 7,118	Cut the blue wire...no WAIT, cut the RED wire... __________________ www.kennethmoore.org

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12-04-2009, 03:09 PM	#8
Tintop Registered Member Join Date: Dec 2009 Posts: 4	Sadly - all I have is a CDI (left over from repairs to a neighbours bike) and a Suzuki manual. I was hoping that I would not have to borrow the bike back so I could pull it apart. Ian F