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coil and plug problem

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19 May 2006 09:00 #48491 by b4schroer
coil and plug problem was created by b4schroer
I have a 79 KZ 650. I replaced the original coils with the Green ones last year. My problem is that I'm not getting a spark out to the plug. So it may be the wires, it may be the coil. How to I check the coil to be sure it is ok? I have an ohm-meter, and I know there is a way to figure by testing the resistance. Additionaly, if the coil tests out to be ok, is that for sure a wire problem or could there be a problem with the coil outpur so to speak?

THanks

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19 May 2006 09:08 #48494 by KZ_Rage
Replied by KZ_Rage on topic coil and plug problem
Just 1 or all 4 are dead?

1979 KZ1000E1 SOLD!
1984 KZ550F2 SOLD!
2006 ZG1000A6F (Totaled)
2001 ZRX1200R (Sold)
2001 Sprint 955i ST (daily rider)

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19 May 2006 09:28 #48497 by OKC_Kent
Replied by OKC_Kent on topic coil and plug problem
Has your bike run at all since you replaced the coils?

Oklahoma City, OK
78 KZ650 B2 82,000+ miles

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19 May 2006 09:32 #48498 by indykaw77
Replied by indykaw77 on topic coil and plug problem
First....get yerself a manual. A Kawasaki Service manual would be ideal, but a clymer will help you out as well.
I know in the Clymer their are troubleshooting procedures for primary and secondary ign circuits.....how much VDC and impedence between such-and-such contacts and stuff like that there. (Dont have my book in front of me, so cant give you any examples....sorry).
:whistle:
Somebody will chime in with a procedure I'm sure, so in the meantime...find a source for a manual. Well worth whatever $$ you spend on it!

Kawasaki Motorcycles...because cars lean th wrong way!

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19 May 2006 21:00 #48623 by Old_Fart
Replied by Old_Fart on topic coil and plug problem
If only 1-4 or 2-3 check the points and condensors. If they look/check ok, then check the coils by primary and then secondary OHMS. Primary is checked at the power leads - should be around 16 - 20 KOHMS. The secondary is at the plug wires - should be whatever is marked on the coil - 4 - 6 OHMS.

Good luck

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19 May 2006 21:13 #48627 by steell
Replied by steell on topic coil and plug problem
Old_Fart wrote:

If only 1-4 or 2-3 check the points and condensors. If they look/check ok, then check the coils by primary and then secondary OHMS. Primary is checked at the power leads - should be around 16 - 20 KOHMS. The secondary is at the plug wires - should be whatever is marked on the coil - 4 - 6 OHMS.

Good luck

Actually you have those numbers backwards, 2-4 ohms on the primary side (where the points connect) and 16k-20k ohms on the secondary side (spark plug wires), and check the secondary side without the plug caps on them, then check the plug caps.

KD9JUR

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