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  #1  
Old 09-23-2010, 09:24 AM
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rgoot01 rgoot01 is offline
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MikesXS coil numbers?

I have read in various threads about using the coils for an XS650 on the XS1100's. My question is, which part number/coils do I want for my '80 Standard? I have read about using the black ones, however I have read about using the green ones as opposed to the black.

Any help, suggestions,advice would be greatly appreciated.

Thanks!
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Old 09-23-2010, 09:57 AM
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natemoen natemoen is offline
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these are the good ones Part #17-6810. The dual tower black ones work too but there have been quite a few peole that have had them fail withing a year.
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1978 XS1100E
K&N Filter
#45 pilot Jet, #137.5 Main Jet
OEM Exhaust
ATK Fork Brace
LED Dash lights
Ammeter, Oil Pressure, Oil Temp, and Volt Meters

Green Monster Coils
SS Brake Lines
Vision 550 Auto Tensioner

In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

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Old 09-23-2010, 11:09 AM
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Thanks for the part number. Do you know if I can bypass the ballast resistor with these?
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  #4  
Old 09-23-2010, 11:14 AM
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natemoen natemoen is offline
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Quote:
Originally Posted by rgoot01 View Post
Thanks for the part number. Do you know if I can bypass the ballast resistor with these?
Yes. These are 3 ohm coils so you MUST remove the ballast resistor if you switch to these coils.
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KD9ARL

μολὼν λαβέ

1978 XS1100E
K&N Filter
#45 pilot Jet, #137.5 Main Jet
OEM Exhaust
ATK Fork Brace
LED Dash lights
Ammeter, Oil Pressure, Oil Temp, and Volt Meters

Green Monster Coils
SS Brake Lines
Vision 550 Auto Tensioner

In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

Theodore Roosevelt
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Old 09-23-2010, 11:15 AM
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natemoen natemoen is offline
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I installed these coils a couple months ago and have not had any problems with them so far. and they give you a much hotter spark as well
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Nathan
KD9ARL

μολὼν λαβέ

1978 XS1100E
K&N Filter
#45 pilot Jet, #137.5 Main Jet
OEM Exhaust
ATK Fork Brace
LED Dash lights
Ammeter, Oil Pressure, Oil Temp, and Volt Meters

Green Monster Coils
SS Brake Lines
Vision 550 Auto Tensioner

In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

Theodore Roosevelt
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  #6  
Old 09-23-2010, 03:00 PM
Haarstad Haarstad is offline
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what's a ballast resistor? and will i need to do it on my 1979 XS1100 special if i use the green coils on mikesxs.com?
I'm just a confused newbie for most things lol
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1979 XS1100 Special
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  #7  
Old 09-23-2010, 03:22 PM
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natemoen natemoen is offline
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Quote:
Originally Posted by Haarstad View Post
what's a ballast resistor? and will i need to do it on my 1979 XS1100 special if i use the green coils on mikesxs.com?
I'm just a confused newbie for most things lol
On the bottom side of the top left frame rail right by the coils there is a small silver rectangle with 2 red works coming out on it. That is the ballast resistor. It creates am extra 1.5 ohms resistance to give the coils a total of 3 ohms. (stock coils are 1.5 already) so yes you would have to remove your as well if you step up to mikes green coils.
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Nathan
KD9ARL

μολὼν λαβέ

1978 XS1100E
K&N Filter
#45 pilot Jet, #137.5 Main Jet
OEM Exhaust
ATK Fork Brace
LED Dash lights
Ammeter, Oil Pressure, Oil Temp, and Volt Meters

Green Monster Coils
SS Brake Lines
Vision 550 Auto Tensioner

In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

Theodore Roosevelt
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  #8  
Old 09-23-2010, 03:53 PM
Haarstad Haarstad is offline
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thank you and do the spark plug caps need to be 5k ohms total? if so, why do they sell a 1k ohm cap?
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1979 XS1100 Special
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  #9  
Old 09-23-2010, 04:34 PM
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The resistor caps are just to eliminate radio interference. Really you can run non resistor caps and non resistor plugs. But stock is 5k caps and non resistor plugs. I would not go over 5k per wire though.
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Nathan
KD9ARL

μολὼν λαβέ

1978 XS1100E
K&N Filter
#45 pilot Jet, #137.5 Main Jet
OEM Exhaust
ATK Fork Brace
LED Dash lights
Ammeter, Oil Pressure, Oil Temp, and Volt Meters

Green Monster Coils
SS Brake Lines
Vision 550 Auto Tensioner

In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

Theodore Roosevelt
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  #10  
Old 09-23-2010, 05:37 PM
Haarstad Haarstad is offline
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maybe i'll just go with 1k caps then, i have no radio
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1979 XS1100 Special
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  #11  
Old 09-23-2010, 05:41 PM
Haarstad Haarstad is offline
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Nevermind, with the coils that i'm getting, it says that 5k ohm caps are required
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1979 XS1100 Special
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  #12  
Old 09-24-2010, 07:27 AM
BigRed BigRed is offline
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Haarstad:

You could also run non-resistor caps with resistor spark plugs. From what I've read, it turns out that you don't need to worry about how much resistance you've got on your spark plugs and caps unless you're running radios, but 5kohm is standard.

Also, when you disconnect the ballast resistor, take the two wires that used to plug into it, and plug them into each other, or you won't get spark.

Good luck!
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  #13  
Old 09-24-2010, 07:35 AM
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natemoen natemoen is offline
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Good point about plugging the wires together, guess I should have specified that.
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Nathan
KD9ARL

μολὼν λαβέ

1978 XS1100E
K&N Filter
#45 pilot Jet, #137.5 Main Jet
OEM Exhaust
ATK Fork Brace
LED Dash lights
Ammeter, Oil Pressure, Oil Temp, and Volt Meters

Green Monster Coils
SS Brake Lines
Vision 550 Auto Tensioner

In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

Theodore Roosevelt
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  #14  
Old 09-24-2010, 07:57 AM
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rgoot01 rgoot01 is offline
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Right on! Thanks for the information. It looks as though I will be purchasing new coils today.
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  #15  
Old 09-24-2010, 08:00 AM
BigRed BigRed is offline
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Quote:
Originally Posted by natemoen View Post
these are the good ones Part #17-6810. The dual tower black ones work too but there have been quite a few peole that have had them fail withing a year.
I put in the dual tower black coils from Mike's XS, and one of them's giving me problems in the first 3000 km. It could be my installation job, but seems to be the coil, as it's only a problem once it gets hot.
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