igniton coils overheat!?!?

[hwille]

Hello,

I was gonna make a longer testdrive this morning to the work to see if my bike runs good now when its done. But after like 20-30km it started to feel wierd and I stopped and it died. Then I saw that it came smoke from the ignition coils. Didnt have much time to look at it any closer right there.

Why are they overheating? Could it be the location on them or is the bike overcharging ?

Here's a picture where I've located the coils and the R/R.

(dont know why the pictures is like this...-.-')

Anyway... What you think the problem can be?
Coils are new from TommySummers,
Also new DynaS
All wirings new on the bike...
New R/R from Tommy


Thanks
Wille

[sgtslag]

Were the new coils a close match for resistance on the input side to the OEM coils?  If the resistance is too low, they will overheat from excessive current -- only option is to replace them.

The DynaS ignition system may put out more power (current/amperes) than what the coils are rated for (that pesky input resistance thing again...).  Are all of the parts rated to work together?

Have you measured the voltage across the battery terminals, with the bike running, to make certain it is below 15 Volts?  New parts which are defective, occasionally slip through quality control, to the customer's hands.

Bottom line is that if the coils have been smoking, they are damaged, and they need to be replaced.  They consist of coils of wire, wrapped around an iron core.  The wires are coated with a thin layer of varnish insulation.  Once that insulation burns, you have shorted coils, which reduces the function, if it works at all.  The shorted coils could burn out the rest of the system, as well.  Cheers!

[hwille]

Its the 3-OHM COILS INCLUDING PLUG WIRES from lowriders by summers, should fit with my dynaS

thanks anyway!