plug wire diameter

  • jzanutto
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plug wire diameter

09 Mar 2009 15:15
#270660
what is the stock KZ650 spark plug wire size??
1978 KZ650B 2004 BMW R1150RT

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  • 650ed
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Re: plug wire diameter

09 Mar 2009 15:35
#270665
I don't know, but the stock wires are permanently attached to the coils. Are you planning to replace the wires only? Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: plug wire diameter

09 Mar 2009 15:51
#270669
no, I am buying yellow heat shrink tubing to cover up the ugly black wires. Just need to know what size.

I cant measure mine because I am away from home on business
1978 KZ650B 2004 BMW R1150RT

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  • Patton
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Re: plug wire diameter

09 Mar 2009 15:58
#270672
Click here for > Another option

Good Luck! :)
1973 Z1
KZ900 LTD

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  • H2RICK
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Re: plug wire diameter

09 Mar 2009 17:25
#270715
I believe/believe they are 7 mm OD....but that does NOT include any protective armour that was/is installed as an overwrap.
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  • inline79
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Re: plug wire diameter

09 Mar 2009 19:00
#270747
Yes, 7mm is correct. That is standard spark plug wire diameter. You can get splices for 7mm wire from NGK for $6.

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  • MFolks
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Re: plug wire diameter

09 Mar 2009 19:01
#270749
1/2" diameter heatshrink tubing will more tha do the job.If it's the 50% type the diameter will be a nice tight .250
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Re: plug wire diameter

09 Mar 2009 19:09
#270754
I measured. The wire is 7mm, but the rubber sheathing that covers most of it is .345" or just under 9mm. If you decide to put shrink tubing on it you may want to try one wire first to make sure it doesn't make it too stiff to route to the plug. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: plug wire diameter

10 Mar 2009 03:56
#270856
there is some 1/2" yellow on ebay I will try.

my coils and wires are perfectly good, just dont look that nice for a new rebuild
1978 KZ650B 2004 BMW R1150RT

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  • Patton
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Re: plug wire diameter

10 Mar 2009 04:41 - 10 Mar 2009 05:25
#270867
Perhaps nylon? wire braid might be an option. Available in various sizes and colors, and relatively inexpensive. Basically cosmetic, but may offer some slight protection.

Aka expandable wire braid, wire sleeving, wire tubing, etc.

Good Luck! :)

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Last edit: 10 Mar 2009 05:25 by Patton.

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