I keep getting shocked, maybe my rear cylinder doesn't like me... - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
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post #1 of 13 (permalink) Old 06-22-2009, 09:56 AM Thread Starter
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I keep getting shocked, maybe my rear cylinder doesn't like me...

For some reason whenever I touch the spark plug cap on the left side of the rear cylinder I get a nice little shock. I was taking a rider safety course yesterday, and while looking at something behind me that the instructor was pointing at, my left leg touched the cap and shocked me again! The shock was so strong that the voltage went out through my left hand that was on the clutch lever and felt like it shocked me again! And that was through deerskin gloves lol.

I inspected the cap and there is NO metal showing whatsoever and the rubber isn't cracked or rotted at all as far as I can tell. What gives?

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post #2 of 13 (permalink) Old 06-22-2009, 10:12 AM
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Keep away from the plug.
You are the only one complaining about a hot spark. lol

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post #3 of 13 (permalink) Old 06-22-2009, 11:36 AM Thread Starter
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Haha yea it's definitely hot, I've never been shocked from touching a rubber plug cap before, thats why I was asking

1994 Kawasaki Vulcan 750 named Jinba Ittai (Japanese for "Horse and rider in perfect harmony").
Jardine Pipes
Splines Lubricated
Painted Instrument Bezels
Headlight Visor
Chrome engine guard
Leather Fork Bag (contents: Pressure gauge, tools, and a Book of Psalms)
Yuaso MF AGM Motocross battery
Kenda Kruz Front tire
Duro Boulevard rear tire

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post #4 of 13 (permalink) Old 06-22-2009, 12:34 PM
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You should check if that spark plug is really firing. You usually only get that when the plug is not working right and the spark goes to the least resistance. If one plug in the cylender is not firing it is not easy to tell, a little loss of RPM and power.

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post #5 of 13 (permalink) Old 06-22-2009, 02:30 PM Thread Starter
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How do I check for that? If I hold the plug in my hand and check for a spark I know I'll get shocked again lol.

1994 Kawasaki Vulcan 750 named Jinba Ittai (Japanese for "Horse and rider in perfect harmony").
Jardine Pipes
Splines Lubricated
Painted Instrument Bezels
Headlight Visor
Chrome engine guard
Leather Fork Bag (contents: Pressure gauge, tools, and a Book of Psalms)
Yuaso MF AGM Motocross battery
Kenda Kruz Front tire
Duro Boulevard rear tire

"Buy the ticket, take the ride."
-Hunter S. Thompson
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post #6 of 13 (permalink) Old 06-22-2009, 04:01 PM
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Use a pair of pliers with an insulated handle!

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post #7 of 13 (permalink) Old 06-22-2009, 04:30 PM
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Note: Removed bad joke here.

All kidding aside, getting shocked from you bike indicates a very serious problem that could injure you or a passenger. Please check the spark plug wire very carefully. While it may look intact it could be loose at the connection between the cable and the head that connects to the plug, or even loose or frayed at the ignition coil.

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Last edited by rubyrick; 06-23-2009 at 05:49 AM. Reason: Removed bad joke.
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post #8 of 13 (permalink) Old 06-22-2009, 10:43 PM
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The wire in the plastic cap may not be making good contact with the clip that goes on the plug. Maybe one time when you pulled it off it separated and does not make good contact with that spark plug.

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post #9 of 13 (permalink) Old 06-22-2009, 10:51 PM Thread Starter
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Thats what I'm starting to think. How hard are those things to replace?

1994 Kawasaki Vulcan 750 named Jinba Ittai (Japanese for "Horse and rider in perfect harmony").
Jardine Pipes
Splines Lubricated
Painted Instrument Bezels
Headlight Visor
Chrome engine guard
Leather Fork Bag (contents: Pressure gauge, tools, and a Book of Psalms)
Yuaso MF AGM Motocross battery
Kenda Kruz Front tire
Duro Boulevard rear tire

"Buy the ticket, take the ride."
-Hunter S. Thompson
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post #10 of 13 (permalink) Old 06-23-2009, 12:32 AM
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Quote:
Originally Posted by Gemguy View Post
The wire in the plastic cap may not be making good contact with the clip that goes on the plug. Maybe one time when you pulled it off it separated and does not make good contact with that spark plug.
x2 on that....for sure a bad connection problem...

In theory, it should not shock you through the boot. However, it is possible for the spark to jump out around the boot and shock you that way. If the wires or boots are cracked or brittle, they should be replaced.

I mean I have even seen fine dust cause this same problem it would attract to the HV (High voltage) circuits (in this case the
Ignition Secondary Circuit is the HV circuit). they say the fine dust can provide a path past the insulating properties of the silicon wire/boots,plastics and ceramics in the system

I would just replace all wires to be on the safe side. I mean think if that was to happen to you on the road....shock,panic,traffic and highway speeds don't mix.

Last edited by daddydave325; 06-23-2009 at 12:35 AM. Reason: add
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