[TexasTom]

starting to work on my 2084, hadn't been run in about 1 year since I had it at the dealer to work on what I thought might be a governor /carb problem.
It ran at full rpm but under load would lose rpm. They told me need to rebuilt engine

anyway trying to work on it myself again and discovered that the right cyl was not firing. put my tiny tack on the plug wire and zero rpm indicated on the right cyl.
pulled the plug wire and no difference at all in engine speed

I do have a weak battery and had to charge/jump to get going

I pulled the spark plug and it looked really good

guessing most likely problem is the ignition module ??

what is involved in replacing the module ?