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1978 GS 400 Ignition w/ CDI wiring diagram

  • Thread starter Thread starter Mailo
  • Start date Start date
M

Mailo

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Hi to everyone, as i told you in my presentation thread, last week i bought a 1978 GS 400, the problem is that before i start the restoration i need to run the engine to know everithing its OK. The ignition system is a huge mess and it has no spark, its too old to fix it in parts so i have to do it all new. Do someone have and electric/ignition with CDI wiring diagram ?

Thanks for reading!:D:D:D
 
So this bike now has contact points ,and you want to upgrade to electronic ignition or am I misunderstanding you?
 
The bike already have CDI, but the ignition doesn't work. i need a diagram ( with CDI ) so i can replace it all.

thanks for reading!
 
Stock setup was points - I think!-so convince me.Remove little cover in front of right foot (as you sit on bike) and peek! What do you see on crankshaft end? Has someone converted it?
 
Also there are no cdi for your bike. It s either an ignitor swap or a dyna s conversion.
 
tom203 said:
Stock setup was points - I think!-so convince me.Remove little cover in front of right foot (as you sit on bike) and peek! What do you see on crankshaft end? Has someone converted it?
Click to expand...

I was told the last owner converted it to CDI ignition

This is what there is in the points place

CDI 1.jpg
 
I'm convinced! Any markings/numbers on this thing? Or the plate it's mounted on? Do those wires go right up to ignition coils or do they connect to some box along way?
 
tom203 said:
I'm convinced! Any markings/numbers on this thing? Or the plate it's mounted on? Do those wires go right up to ignition coils or do they connect to some box along way?
Click to expand...
Doesn't look like any mechanical advance so I would guess it is an integrated aftermarket peice.
 
tom203 said:
I'm convinced! Any markings/numbers on this thing? Or the plate it's mounted on? Do those wires go right up to ignition coils or do they connect to some box along way?
Click to expand...

about the wires of the sensor. one goes to the CDI box and the other isn't connected to anything.

the cdi box has 5 outlets

the other wire from the sensor where is suposed to be connected?

everything of the wiring is ruined so i have to replace all ( stator, ignition, starting, lights )
 
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Mailo said:
about the wires of the sensor. one goes to the CDI box and the other isn't connected to anything.

the cdi box has 5 outlets

the other wire from the sensor where is suposed to be connected?

everything of the wiring is ruined so i have to replace all ( stator, ignition, starting, lights )
Click to expand...


OK Question number 23.......

You have an ignitor box in addition to the ignition plate on the end of the crank?






You know a picture really is worth a thousand words.............
 
posplayr said:
OK Question number 23.......

You have an ignitor box in addition to the ignition plate on the end of the crank?






You know a picture really is worth a thousand words.............
Click to expand...


yes, one of the wires that comes out from the sensor goes to that box. the other one is connected to anything





Im seeing some wiring diagrams and in some of them i see that the pulse comes from the stator, in others from a pulse generator like the one in my bike.

which of the stator wires has to go to the CDI Box?
 
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Sounds like you have an after market ignitor or is it a CDI?

Can you find a part number and look it up?
 
posplayr said:
Sounds like you have an after market ignitor or is it a CDI?

Can you find a part number and look it up?
Click to expand...

Its an aftermarket CDI here's a pic of the box

100_7298.jpg

i want to know were to conect each wire.
 
posplayr said:
I have never seen one of those before.

Read the number on the side look up the manufacturer and see if there is a data sheet.
Click to expand...


Pietcard, its an Argentine manufacturer.

but aren't all the cdi's the same?

i only need a diagram to wire it.
 
"...but aren't all the cdi's the same?"

not that I know. I had a Kawasaki two stroke single with cdi which ran off magneto .Your unit on a twin four stroke would be different. Is the manufacturer still in business?
 
We have told you and repeated that there are no CDIs that we are aware of. You continually refer to this as a CDI ignition. So why do you think that we would think they are wired the same?
 
Ok im sorry, im speaking without knowledge, hope you guys can help me.

i refer at that as CDI Ignition becouse that little box says so "PIETCARD CDI 2048 "

the only thing i know to help you figure how to wire this thing is

Its a CDI, it has 5 pins. that's the onlything i know


i found this diagram in the web

CDI con avance 1.jpg


Bujia = Spark Plug
Bobina de alta = Spark Coil
Llave de pare = Kill switch
Volante magnetico = magnetic wheel
Bobina de Alimentacion = Alimentation Coil ( i don't know if it means the stator, or a coil for the sensor )
 
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That is a good start, and it in fact appears to be a CDI. (OK I pulled up a larger picture) Is there anything else indicating the color of the wires?

Black is probably ground
A red or Orange is probably from the kill switch.

The rest are anybody's guess. Can you tell from how it was wired before?
 
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