I just posted a no or weak spark on my Husqvarna 61. Maybe I should try a few more spark plugs instead of the 2 or 3 I used to check it. One of them may have been a Torch brand that gave me no spark .
NGK BPMR7A is the only plug i run in Husqvarna saws. Husqvarna has their own branded plug, the HQT-1 is the same as the NGK. try a plug in another saw you know runs. then you will know whether its the plug or the ign.module.