ignition coil

[lcochran]

So my dyna S ignition coil is out.  Question
Should i replace it with this>?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=130463580027&crlp=1_263602_304652&ff4=263602_304652&viewitem=&guid=a94b8fd312a0a0e201d2d872ffc8b174&hlp=false&rvr_id=189482774176&ua=M*F%3F&itemid=130463580027

or is there a better alternative.
thanks

[Re-run]

Well your ignition and coils are 2 separate things. Is the ignition out or a coil?
Either way I would not get it from there. Go to z1 enterprises, listed in the online parts section, they have it for cheaper.

[lcochran]

ah okay, i'll check out Z1.
I called it an ignition coil, but that's incorrect. My coils under the tank are fine. The ignition pictured on that post is whats not working.  Checked the resistance across each of the 2 lines that feed the coil up under the tank and one was <1 in the decimals(.3-.4) and the other varied from 6-13 in whatever units of ohms my meter was in.
Which makes sense because cylinder 1 and 4 have adequate spark, cylinders 2-3 have no spark and both coils 1 and 2 test fine.

So should i replace the old dyna S with a new one from Z1?