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coil repair? is it possible

  • steveo_4192003
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29 Apr 2006 18:48 #43756 by steveo_4192003
coil repair? is it possible was created by steveo_4192003
my bike, stock 1977 kz650b


ok so my bike ran ok until i took out the old plugs (one at a time) and put new ones in!
i looked around the site but only found few related posts.

the coil wire, at the coil#2 is very loose and rotates around in the coil!!!but wont come out i think it may have come undone and/or broke inside.

can this be fixed? i think they are seald
i belive they are stock coils for my 77 kz650b! they say ( tec )on the side of them. i should get new ones but have to wait until funds allow me to!

thanks heres a pic

Post edited by: steveo_4192003, at: 2006/04/30 14:56

1977 kz650b-1, 4-2exhaust systetm, pod filters ,jetted 112 main, 17.5 pilot
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29 Apr 2006 18:51 #43757 by neilage66
Replied by neilage66 on topic coil repair? agian!
To look at the coils on my GPz, I thought they were hardwired but I gave the little "bullet" a twist and...lo and behold the connector unthreaded and allowed easy replacement of plug wires.
I've been told that some coils are hardwired and some aren't...I lucked out. :P

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29 Apr 2006 19:11 #43763 by steveo_4192003
Replied by steveo_4192003 on topic coil repair? agian! or swap!
i forgot, i have a good pair for my 72 cb500!
they are stock also, but can i use them on this bike???


if anyone knows please let me know! pretty sure the wire is broke inside the coil, ill test tonight!!

1977 kz650b-1, 4-2exhaust systetm, pod filters ,jetted 112 main, 17.5 pilot

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  • KZQ
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29 Apr 2006 19:21 #43766 by KZQ
Replied by KZQ on topic coil repair? agian! or swap!
Get out the OHM meter. If the primary resistance is similar they'll probable work fine.
KZCSI

www.KZ1300.com
Riders:
1968 BSA 441 Shooting Star, 1970 BSA 650 Lightning, 1974 W3, 1976 KZ900, 1979 KZ750 Twin, 1979 KZ750 Twin Trike, 1981 KZ1300, 1982 KZ1100 Spectre, 2000 Valkyrie, 2009 Yamaha Roadliner S. 1983 GL 1100
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1985 ZN1300

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  • steveo_4192003
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30 Apr 2006 12:06 #43934 by steveo_4192003
Replied by steveo_4192003 on topic coil repair? is it possible
hers a few pics of the suspect coil #1-#4! looks like it got hot and fried the inside or something im going

right now im going to get coils from my cb500 thats stored away and try them to see if they work,

1977 kz650b-1, 4-2exhaust systetm, pod filters ,jetted 112 main, 17.5 pilot
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03 May 2006 12:00 #44830 by steveo_4192003
Replied by steveo_4192003 on topic coil repair? is it possible
i tried to use the honda coils but would not fit in mount! so i put old ones back on! well i got the bike going, so it was not a coil!
i think i didnt have fuel reaching engine, as it would backfire through carbs!(means it lean i think) i cleaned petcock (agian) and turned on ,waited for a minuite and choked it and she fired right up. no problems so far. i road for 2 block or so and she went very well. but coils will need replaced here soon!!

Post edited by: steveo_4192003, at: 2006/05/03 15:03

1977 kz650b-1, 4-2exhaust systetm, pod filters ,jetted 112 main, 17.5 pilot

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03 May 2006 12:39 #44840 by wiredgeorge
Replied by wiredgeorge on topic coil repair? is it possible
I would toss those coils and buy new ones with removable plug wires... Dyna coils work well and are reasonably priced at www.z1enterprises.com

If you don't have the money, buy new plug wires, some epoxy and cut off the old plug wires and drill them out carefully. I think most are just inserted onto a metal barb and then sealed with epoxy. Push the new wire into the hole and make sure the metal lead inside the wire contacts the barb. Then seal with epoxy again.

It would probably be easier to buy new coils.

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