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Old 10-07-2014, 04:10 PM   #1
minging OP
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Thoughts on this coil??

One of the little rubber boots that covers the connection between the spark plug wire and the coil cracked and some water got into that connection on my 1994 R100GS. Spark plug wire is shot; already ordered its replacement.

Coil (one side) looks like this:



Question

Is this just a case of getting some emery cloth up in there and getting everything shiny again like its twin brother or is there something else I have to worry about and/or test for on this coil?

Cheers,

Jon in SF
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Old 10-07-2014, 04:58 PM   #2
supershaft
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Clean it and it should work. If it doesn't? I would get a blue Dyna coil.
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Old 10-07-2014, 05:11 PM   #3
Bill Harris
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A good tool for cleaning is an 8 or 9mm gun cleaning brush-- they sell them individually in sporting goods stores. Sometimes you can find cylindrical wire brushes the right size (like Harbor Freight).

The green stuff is just a copper oxide-- water gets in, electrolyzes with electricity and "rusts" the copper. I usually give the connector and boot a bit of dielectric grease on assembly.

--Bill
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Old 10-07-2014, 09:34 PM   #4
minging OP
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Quote:
Originally Posted by Bill Harris View Post
A good tool for cleaning is an 8 or 9mm gun cleaning brush-- they sell them individually in sporting goods stores. Sometimes you can find cylindrical wire brushes the right size (like Harbor Freight).

The green stuff is just a copper oxide-- water gets in, electrolyzes with electricity and "rusts" the copper. I usually give the connector and boot a bit of dielectric grease on assembly.

--Bill
Good tip on the gun brush. I actually have some for my own guns, but .22LR is a good bit smaller caliber than the coil would shoot!

Cheers,

Jon in SF
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Old 10-07-2014, 09:48 PM   #5
Uke
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Do you have a Dreml Tool or a cordless variable speed drill (12v should be easily sufficient)? .357 or .38 cal pistol should be pretty close.

Quote:
Originally Posted by minging View Post
Good tip on the gun brush. I actually have some for my own guns, but .22LR is a good bit smaller caliber than the coil would shoot!

Cheers,

Jon in SF
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