I installed my Thunderheart Ignition!!!

[Chopper117]

WOW!!!! This baby rocks now! I bang second and it just breaks the tire loose!! Everything went smooth but i did have one question. Do you do anything with the rear timing because I kept it the way it was and also is there a certain code for speed calibration for the Big Dog? By the way I have my setting on 4 and it feels great!

 

[avdhunter]

I think all your answers are here!!!!
http://www.bigdogbiker.com/forums/how/7950-how-upgrading-thunder-heart-ignition-module.html

 

[Lebo]

Congradulations, I did it 2 months ago and I should have done this long long time ago.
As you said the bike runs much much smoother.
Yes, follow the link avdvhunter put to get your answers, off the top of my head, do not mess with anything, I found that I needed to change the cutoff RPM from 4000 to 6000
Rest all default...I also used 4 setting (but honestly "3" had absolutely no back fire, "4" has some occasional but the bike is more feisty.

I had a 600 cam and Super "G" , but the bike was as rough as hell. After I installed the Thunderheart ignition it runs much smoother, more powerful... even sounds great and no smell of unburnt fuel...enjoy...