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Kz 400 Ltd problem
- Patton
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This would be basically a total loss ignition system without using any charging system components, as sometimes used in road racing.
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1973 Z1
KZ900 LTD
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- Edgytaff
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Kz 400 ltd,
Gt 750 trike ,
454 ltd,
Cb 250 super dream ,
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- Nerdy
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Edgytaff wrote: Hi guys it does have kick start and turns over with jump leads on starter motor, I'd like to know how to wire it up to start it tho just to hear it running before I start spending out on it cheers
D'oh - my fault. I looked at this pic (yeah, I know) and didn't see a kickstarter. That, and I thought the LTDs in general didn't have them.
1967 Yamaha YCS1 Bonanza
1980 KZ440B
1981 Yamaha XT250H
1981 KZ440 LTD project bike
1981 GPz550
2013 Yamaha FZ6R
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- Patton
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Edgytaff wrote: Hi guys it does have kick start and turns over with jump leads on starter motor, I'd like to know how to wire it up to start it tho just to hear it running before I start spending out on it cheers
The ignition coil should have a small "signal" wire attached to one of its primary terminals.
The other end of the signal wire attaches to the points or electronic ignition, stock or otherwise.
With a good fully charged battery, connect negative post to engine, and connect positive post to the other ignition coil primary terminal.
Th above is like what happens when the key is turned ON in a normal ignition switch.
So don't leave it hooked up like this with power to the ignition coil except when actively trying to start the engine -- use the kick starter -- and while the engine is running.
The signal wire serves to ground the coil through closed points or electronic ignition, stock or otherwise.
While so grounded, the ignition coil "charges" with the battery power passing through the coil
When the points open or the electronic ignition interrupts the coil's ground through the signal wire, the ignition coil becomes "ungrounded" which causes the coil to fire through the spark plug wires.
With a good fully charged battery, the engine should run for several hours.
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1973 Z1
KZ900 LTD
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- Edgytaff
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Kz 400 ltd,
Gt 750 trike ,
454 ltd,
Cb 250 super dream ,
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- Patton
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Edgytaff wrote: Thanks any idea what colour wire from coil I should connect up please
The stock wire color between the points and the ignition coil primary terminal shows as Bl -- Blue -- on the wiring diagram.
The stock wire color between the battery positive post and the other ignition coil primary terminal shows on the wiring diagram as Red/Yellow, which R/Y wiring passes through various components such as fuses, connectors and switches.
And which relatively lengthy stock wire routing is avoided entirely by using the minimal ignition-only "hot wiring" technique earlier described with a wire running directly from the the positive battery post to the ignition coil primary terminal.
The hot wire can be in your choice of color! :woohoo: :lol: :lol:
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1973 Z1
KZ900 LTD
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- Edgytaff
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Kz 400 ltd,
Gt 750 trike ,
454 ltd,
Cb 250 super dream ,
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- Edgytaff
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Kz 400 ltd,
Gt 750 trike ,
454 ltd,
Cb 250 super dream ,
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- Edgytaff
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Kz 400 ltd,
Gt 750 trike ,
454 ltd,
Cb 250 super dream ,
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- Patton
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Even ebay can sometimes be helpful when a seller lists the various model applications.
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1973 Z1
KZ900 LTD
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- Edgytaff
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Kz 400 ltd,
Gt 750 trike ,
454 ltd,
Cb 250 super dream ,
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- Patton
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No fire on plugs could result from various reasons, including:
bad ignition coil;
failure in the secondary loop;
failure of points to successively ground and unground the ignition coil;
signal wire issue;
etc.
With all components and connections being good, accompanied by positive voltage from a good fully charged battery connected to the coil, and the battery negative post connected to the engine, the coil will charge while the points are closed and fire when the points open.
Good Fortune!
1973 Z1
KZ900 LTD
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