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gpz550 ignition switch 18 Nov 2020 16:05 #838612

  • loudhvx
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Yes, Z1 enterprises sell new buttons with springs, if that's what it ends up needing.

www.z1enterprises.com/yamaha-xs650-butto...wEAQYASABEgLaGfD_BwE

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gpz550 ignition switch 21 Nov 2020 10:23 #838715

  • Caleator
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Fixed and cleaned up the points on the starter button. everything is getting power where it should, but no spark whatsoever. Igniter box reading one less volt than the battery.

Worth rummaging around for a used igniter box or should I just go Dyna? any opinions on that dyna ignition?
1981 Kawasaki GPZ550 (KZ550D-1)

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gpz550 ignition switch 21 Nov 2020 13:48 #838721

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The factory system is a bit more sophisticated and efficient than the Dyna S. It does not charge up the coils until the crank is turning and uses a lot less power overall. The Dyna S will also require new coils that measure over 3 ohms.

However, any used igniter for the factory system could be suspect at this point.

One option is to make an igniter out of brand new parts. This is not as easy as it used to be, but you might still be able to make one.
Here is one way to make an igniter:
s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html

Here is another way:
s3.amazonaws.com/gpzweb/Ignition/GPZignitionMod.html

Both of these designs are near 20 years old now, so parts availability will be an issue. Check Digikey.
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