Coil Placement
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Tourer
Joined: Oct 2007
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Coil Placement
I mounted my coil up high between the heads on my 78. It was a cheap coil replacment from a discount on line retailer. It must have gotton hot sitting up between the heads,because it craked and broke away from the mounting flange.I rigged it with apoxy and zip ties and rode all summer. Now its apart and I am fixing some issues. The questions is, can i use any coil I want as long as it is 5 ohms? I was thinking about one of the round ones that mounts away from the motor ( i would need to find a spot). Did Sportsters ever come from the factory with this type of coil? Where was it mounted ? I am thinking this would be a better set up for a rough riding, vibrating, hardtail.
Thanks for any help
T- Ron
Thanks for any help
T- Ron
Stellar HDF Member
Joined: Feb 2006
Posts: 3,035
Likes: 17
From: Houston Texas
I mounted my coil up high between the heads on my 78. It was a cheap coil replacment from a discount on line retailer. It must have gotton hot sitting up between the heads,because it craked and broke away from the mounting flange.I rigged it with apoxy and zip ties and rode all summer. Now its apart and I am fixing some issues. The questions is, can i use any coil I want as long as it is 5 ohms? I was thinking about one of the round ones that mounts away from the motor ( i would need to find a spot). Did Sportsters ever come from the factory with this type of coil? Where was it mounted ? I am thinking this would be a better set up for a rough riding, vibrating, hardtail.
Thanks for any help
T- Ron
Thanks for any help
T- Ron
My 1971 had the thing hanging out in plain sight and I just hated looking at it.
Here is what I did with my coil.
It had one sixteenth of an inch clear of the rear fender, but it fits.
You cannot see it anymore and things like this really clean up a bike in my view.
And cracks in the coil exterior material are OK, as long as it does not zap to ground.
Most coils have these cracks but are still well insulating the internals and that is what is important.
pg
Last edited by piniongear; Dec 27, 2009 at 11:52 PM.
Road Master
Joined: Aug 2006
Posts: 751
Likes: 6
From: 500 miles south from Artic Circle
Yep under gas tank, I think that only difference is that coil "towers" are facing left on 78 and older models they are facing back. (I'm not sure if that change happened 79) 5 Ohms is correct coil for points ignition.
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Tourer
Joined: Oct 2007
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Ok under the gas tank is where it mounted from the factory. I moved it to where I believe the factory put the key and choke ****.I was looking at a coil that looks more like an auto coil, round, both plugs and hookups are on top. It has a mounting flange I can bolt it up under the seat out of sight. It is a 5 ohm coil just looks different from the factory one.it is cased in a metal housing. It was in the custom chrome book. Its cheaper than the stock replacemant and comes with new longer plug wires.
Cruiser
Joined: Nov 2009
Posts: 179
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From: Texas
Ok under the gas tank is where it mounted from the factory. I moved it to where I believe the factory put the key and choke ****.I was looking at a coil that looks more like an auto coil, round, both plugs and hookups are on top. It has a mounting flange I can bolt it up under the seat out of sight. It is a 5 ohm coil just looks different from the factory one.it is cased in a metal housing. It was in the custom chrome book. Its cheaper than the stock replacemant and comes with new longer plug wires.
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Tourer
Joined: Oct 2007
Posts: 269
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From:
I made my own mount and used my exsisting coil and put it under the seat. That coil was fine just the flange was broke off. I made sort of a "pinch" set up the coil slides in and theni tighten it up it looks like it will work but right now its just a bare frame. I can take some pics if you want to see it
T-Ron
T-Ron
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Cruiser
Joined: Nov 2009
Posts: 179
Likes: 0
From: Texas
Thanks T-Ron. The one Im working on now is a rigid.found one of those 4 qt oil tanks that holds a battery,and put the coil and fuses in it looks ok.
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