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anyone ever heard of see through spark plug caps? 06 Dec 2005 18:00 #12088

  • kswilliams333
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See through spark plug caps where you can see the spark?

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anyone ever heard of see through spark plug caps? 06 Dec 2005 19:04 #12100

  • Biquetoast
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kswilliams333 wrote:

See through spark plug caps where you can see the spark?


You wouldn't actually see the spark - do mean those ones that fire a little lights with every pulse? I've seen those..

Here's an example from eBay:
cgi.ebay.com/blue-flash-spark-plug-cap-m...QQrdZ1QQcmdZViewItem
(1.) '75/'76 KZ400D - Commuter
(2.) '78 KZ750B3 Twin - Commuter
(3.) '78 KZ750B3 Twin - Commuter
(4.) '75 KZ400D - Sold
kz750twins.com

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anyone ever heard of see through spark plug caps? 07 Dec 2005 05:53 #12134

  • wiredgeorge
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You can get them from JP Cycles I think. I also recall KuryAkyn once sold them. I got a set from JC Whitney and ran them on a Kawasaki Vulcan 1500A. I got ones with red clear plastic and they looked kind of neat at night. I used them for about 15K miles and one cracked around the base and I replaced them. I saw them initially in a SciFi movie that featured a Harley that had them... Harley Davidson and the Marlboro Man... You can sort of see the rear plug on the Vulcan lighting up in this pic but the pic isn't all that great for seeing the plugs.

Post edited by: wiredgeorge, at: 2005/12/07 08:56
wiredgeorge Motorcycle Carburetors
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anyone ever heard of see through spark plug caps? 07 Dec 2005 18:19 #12241

  • KZQ
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Years ago I read about a spark plug that has a transparent insulator through which you could see the color of the explosion in the cylinder. It was supposed to be a good tuning tool, at least till the carbon covered up the glass on the inside.

Kinda of suprised they didn't catch on.

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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anyone ever heard of see through spark plug caps? 07 Dec 2005 18:25 #12245

  • ibsen22000
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Here is another variant. I don't know if this is what you are asking for.
They are called Colortune, and they can be used for adjusting the air/fuel mixture.
This is one place you can buy it:

www.carbtune.com/colortune.html

Post edited by: ibsen22000, at: 2005/12/07 21:28

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