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Old 10-27-2004, 04:21 PM   #1 (permalink)
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Default Ignition coil stick problem?

I got a '02 that I'm doing some maintenance on, and while I was pulling off a coil stick cap, I noticed white powder in my fingers that looked like it came off the coil itself. I wiped it off the cap and found no other obvious marks, like grey spots on the cap. Is it time to replace? Will a resistance measurement confirm a failing coil stick? There any other ways to verify if it's good or ready to fail? Thanx for any help.
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Old 10-27-2004, 07:01 PM   #2 (permalink)
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Well how does the bike run?

The resistance test can sometimes give you a false positive.

The water test is a sure way of knowing it is bad, but you have to wait for it to go.
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Old 10-28-2004, 12:10 PM   #3 (permalink)
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The only complaint I have about it's running is that sometimes when I start it when cold, it runs a little rough, like on 3 cylinders. The rough running only lasts for about a minute then goes away. I suspect that symptom could be caused by when I cleaned the carbs last tune up, I also changed the float level slightly on one carb. It is getting new plugs, and I read in Roadracing World about R6 coil sticks shorting out on Melissa's race bike, so I thought I'd take a look.
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Old 10-28-2004, 12:43 PM   #4 (permalink)
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Yeah it could be a coil, thats it how they act sometimes, when they heat up the metal inside expands and eventually makes a connection.

Spray some water on the headers when you first start it, see if you can locate the exact one.
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Old 10-30-2004, 11:19 AM   #5 (permalink)
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Well I do know that it's the #2 cyl that had the chalky white stuff on it's cap. I guess I'm looking ffor some reassurance that if I go out and buy a replacement for that coil stick, that they can last an additional 20K miles that way. I'm sure they aren't cheap, and my wife just quit her job. So I don't want to just go out and blow dough.
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