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M.unit to coils
- Jai88
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12 Apr 2022 15:35 #865309
by Jai88
M.unit to coils was created by Jai88
Hello everyone!
I have a stupid question which I’m hoping someone can answer..
but first some background info,
I’m about to start hardtailing/bobbing my 84?? zn750 ltd. I’m wanting to simplify the wiring and clean it all up with the M.unit blue and motogadget switches.
I mostly understand the wiring until I get the the ignition system.
my question is..
Can anyone explain the wiring between the M.unit and the coils?
do I have a contact breaker or an ignition control module of sorts, and how do I wire that together to make sure I get a spark at the correct time?
Thanks in advance
Jai
I have a stupid question which I’m hoping someone can answer..
but first some background info,
I’m about to start hardtailing/bobbing my 84?? zn750 ltd. I’m wanting to simplify the wiring and clean it all up with the M.unit blue and motogadget switches.
I mostly understand the wiring until I get the the ignition system.
my question is..
Can anyone explain the wiring between the M.unit and the coils?
do I have a contact breaker or an ignition control module of sorts, and how do I wire that together to make sure I get a spark at the correct time?
Thanks in advance
Jai
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- F64
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- 81-KZ440D2
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12 Apr 2022 21:27 - 12 Apr 2022 21:42 #865324
by F64
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY
Replied by F64 on topic M.unit to coils
Pretty easy.... just run a wire from the "ignition" output on the m-unit to the positive terminal on your coil(s).
The coil negative wire will go to the contact breaker.
I'm not sure about your wiring if you use an electronic ignition module.
photo:motogadget
The coil negative wire will go to the contact breaker.
I'm not sure about your wiring if you use an electronic ignition module.
photo:motogadget
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY
Last edit: 12 Apr 2022 21:42 by F64.
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- meubels
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- a lesson each day keeps ignorance at bay
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24 May 2022 14:21 #867639
by meubels
1982 KZ1100A (shaft). Customized bike. Runs K&N airpods, stepped up carbs. Rebuilt wiring harness and an M-unit blue. Led lighting, Mosfet reg-rec, li-fe battery, new controls, home built saddle and fully new paint job. All this took me a few years...
Replied by meubels on topic M.unit to coils
I was wondering if this has solved your problems. I run an M-unit blue on a kz1100 with an IC igniter. If you would like I can share my wiring diagram...
1982 KZ1100A (shaft). Customized bike. Runs K&N airpods, stepped up carbs. Rebuilt wiring harness and an M-unit blue. Led lighting, Mosfet reg-rec, li-fe battery, new controls, home built saddle and fully new paint job. All this took me a few years...
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- TexasKZ
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24 May 2022 20:04 #867651
by TexasKZ
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Replied by TexasKZ on topic M.unit to coils
By 1984, all Kawasaki street bikes bigger than 100cc had electronic ignition, not breaker points.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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- kzstreetfighter71
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- Atlantic West Coast
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25 May 2022 00:02 #867658
by kzstreetfighter71
06 Gsf 1200 bandit, 08 Triumph tiger 1010
05 Yam xv1700 , 02 Hon shadow 1100
1975 Z1 (currently working on)
1977 Z1000 ( running and in storage)
1978 Z1000 (currently working on)
1978 Z1r "skinny tank" (currently working on)
1978 Z1r "fat tank (gathering parts)
1979 z1000st (currently working on)
Replied by kzstreetfighter71 on topic M.unit to coils
Please share anything you have, always nice to share with the class.
06 Gsf 1200 bandit, 08 Triumph tiger 1010
05 Yam xv1700 , 02 Hon shadow 1100
1975 Z1 (currently working on)
1977 Z1000 ( running and in storage)
1978 Z1000 (currently working on)
1978 Z1r "skinny tank" (currently working on)
1978 Z1r "fat tank (gathering parts)
1979 z1000st (currently working on)
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- Wookie58
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25 May 2022 07:51 #867674
by Wookie58
Replied by Wookie58 on topic M.unit to coils
One thing I would add is that personally I would only feed the coils from the "ign" output. Anything else that doesn't have a specific output on the M-unit I would feed from one of the "aux" ports. The reason for this is the coils alone can draw close to the 10 amp rating of the M-unit output and given the cost of these unit's I wouldn't want to risk overloading it (even though it has built in protection) The below calculation shows the current draw of the coils and as you can see with coils that are close to 3 ohms resistance the draw is 9 amps. This is of course only IMHOPlease share anything you have, always nice to share with the class.
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- Jai88
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10 Jun 2022 02:50 #868598
by Jai88
Replied by Jai88 on topic M.unit to coils
Hi all,
sorry for the absence unfortunately my fiancée died at the beginning of June at the age of 33, so as you can all imagine the build has taken a back seat.
Yeah my 750 is breaker point but any wiring diagrams you have would still be fantastic as the more I learn the more I know.
kindest regards,
Jai
sorry for the absence unfortunately my fiancée died at the beginning of June at the age of 33, so as you can all imagine the build has taken a back seat.
Yeah my 750 is breaker point but any wiring diagrams you have would still be fantastic as the more I learn the more I know.
kindest regards,
Jai
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- Wookie58
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10 Jun 2022 03:15 #868600
by Wookie58
Replied by Wookie58 on topic M.unit to coils
Sorry to hear that Jai, devastating for sure. We all love our bikes but there is "a time and a place" and you need to get your priorities right. Any support you need with electrics etc (or anything else) we are here to help.
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- TexasKZ
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10 Jun 2022 10:07 #868609
by TexasKZ
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Replied by TexasKZ on topic M.unit to coils
I am very sorry for your loss.
When you are up to it, would you mind posting the engine number? I am curious because I am not aware of any KZ750 four cylinder engine that came with breaker points. Maybe I am ignorant, or maybe there is a mystery here.
When you are up to it, would you mind posting the engine number? I am curious because I am not aware of any KZ750 four cylinder engine that came with breaker points. Maybe I am ignorant, or maybe there is a mystery here.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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- Jai88
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10 Jun 2022 11:20 #868612
by Jai88
Replied by Jai88 on topic M.unit to coils
Hi Tex,
sorry I misread your reply.
I have an ic ignition box and I’m guessing there’s sensors on the crank?
cheers,
Jai
sorry I misread your reply.
I have an ic ignition box and I’m guessing there’s sensors on the crank?
cheers,
Jai
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- TexasKZ
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10 Jun 2022 14:52 #868615
by TexasKZ
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Replied by TexasKZ on topic M.unit to coils
That is what I would expect.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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- Jai88
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20 Jun 2022 14:17 #869118
by Jai88
Replied by Jai88 on topic M.unit to coils
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