need replacement coils for '80 1100 SG

[graybird78]

HELP!!! I have an 1980 1100 model SG that is in need of new ignition coils. Problem is - when the bike warms up it feels like it's dropping 2 cylinders at idle or very low speeds. This condition is not always present. This condition goes away when I give it gas. It never happens when the bike is cold. Sometimes it's very hard to start when it's hot. I think I checked all that I can check as far as the ignition goes. I did repair the pickup coil wires when I first bought the bike. It had a very bad misfire throughout rpm range. the repair I made fixed this problem. The reason I think I need new coils is #1 & #4 coil ohms 1.5 on primary side. #2 & #3 coil ohms at 7.8 ohms at primary side. According to the repair manual 1 coil is good - the other is bad. My dilema is that I am unsure of which after market coils I should use. I have read pro's & con's of different makes of coils. Dyna's seem to be the better choice over Accels. One problem I have noticed on your web site - when other people have had same problems - no one has addressed the issue of the older XS 1100's using a factory installed ballist resistor in the ignition system to cut down the battery voltage to coils when the bike is run mode. How will this effect the replacement coils? Or can I by-pass the resistor and use the proper coils after I have made by-pass to resistor? And will this repair cause any other problems to ignition system? Or could it possibly damage anything in ignition system? Any and all help and answers will be GREATLY appreciated.

P.S.
LOVE YOUR WEB SITE! HAS BEEN VERY HELPFUL!

[CA.XSer]

graybird

Just to set the record straight this web site belongs to the members, you are included, as you are now a member. All of us make contributions to help each other!!

Have you looked at this tech tip?

http://www.xs11.com/forum/showthread...ighlight=coils

[sixtysix]

I think you need to ask the manufacturer, the dyna coils used in that tip are rated at 6 volts, just like the factory ones, so use of the ballast resistor is OK. Within reason though a coil does not care what voltage you hit it with, it just spikes it up. I would call dyna and ask, or accel or whoever. The Accel coils have a 3 ohm primary it think, and are rated at 12 volts (I think).

[graybird78]

thanks for input.

I appriciate the promptness in the reply.I did not mean to make anyone mad.I really enjoy your web site.I have truly found some very useful information about the xs 1100.It will help me in keeping my cycle in shape.I did call dynatek and they told me that the coil part #dc2-1 is for use on my application and that I should have no other problems with my ignition system. Accel on the other hand was unsure about my application as they told me to use 3.0 ohm coils.I felt if they were unsure then I would go with the latter.I will use the info on dyna coil install that is on web site.I hope this fixes my misfire. p.s great web site

[sam_cg_cook]

graybird...

Yeah, the DC2-1 DynaCoil is the way to go from what I have read... I just searched all over the web and finally ordered mine from MPS RACING ...this is the best price I could find at $108.00 for the set.