85 zn700

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03 May 2015 18:53 #670560 by bb41077
85 zn700 was created by bb41077
Don't seem to have spark on 2 cylinders outta 4. One on each coil is this normal? How can I tell if the coils r bad??
Bruce Bakken

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03 May 2015 19:18 #670563 by Randombeat
Replied by Randombeat on topic 85 zn700
Swap the coils and see if the same 2 ,cylinders fire, or not ...
1980 KZ750H LTD-- pods-- vance & hines 4-1 --speedo/tach/blinker/switch deletes -- brat style

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03 May 2015 19:24 #670564 by 650ed
Replied by 650ed on topic 85 zn700
Which cylinders are connected to which coils? Maybe you have them connected wrong. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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03 May 2015 19:46 #670569 by bb41077
Replied by bb41077 on topic 85 zn700
Well I just bought the bike, did some repairs...... It seems to be the bottom of each coil goes to the ones that r not firing, the top goes to the ones that r firing.. Left to right sitting on the bike.... Spark, no spark, spark, no spark... So that's where I'm at so far
Bruce Bakken

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03 May 2015 19:51 #670571 by bb41077
Replied by bb41077 on topic 85 zn700
Stupidly I guess I don't know which one is suppose to go to which on but , can I switch um to the other ones or would that jack things up?
Bruce Bakken

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03 May 2015 19:57 #670572 by 650ed
Replied by 650ed on topic 85 zn700
One coil should be connected to cylinders 1 & 4. The other coil should be connected to cylinders 2 & 3. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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03 May 2015 22:11 #670599 by bb41077
Replied by bb41077 on topic 85 zn700
Ya. Top of the coil goes to 1 and 3 bottom plugs go to 2 and 4. As it sits that's how I'm describing the layout. Sitting on the bike. 1,2,3,4 top plugs go to 1 and 3 And the bottom of the coil plugs go to the 2 and 4. So to me half of each coil is not working. Or could it be the cdi box cuz that was shattered and I got a different one when I bought the bike. Plus I can't find a book or anything to look at on line... Help
Bruce Bakken

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04 May 2015 05:04 #670608 by SWest
Replied by SWest on topic 85 zn700
One coil goes to 1/4 the other goes to 2/3. If it doesn't fire switch them.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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04 May 2015 07:08 #670620 by bb41077
Replied by bb41077 on topic 85 zn700
Will try that out. I had just got thee bike and had to change the starter clutch and couple things so I never heard it run till I got it to and I can't seem to find a book on it. Hope I can figure ythis out cheaply but saftly
Bruce Bakken

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04 May 2015 07:09 #670621 by bb41077
Replied by bb41077 on topic 85 zn700
And its our first bike,
Bruce Bakken

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04 May 2015 07:51 #670627 by bb41077
Replied by bb41077 on topic 85 zn700
OK so one coil is going to 1&4 the other to 2 & 3, as much as I can figure 2 and 4 r not firing.
Bruce Bakken

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04 May 2015 07:53 #670628 by bb41077
Replied by bb41077 on topic 85 zn700
Yes they r, 2 and 4 are not firing with any spark
Bruce Bakken

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