I got a few questions about coils, hopeing I can get the good info. Problem is that I need 2.7 ohm resistance coils, I barely understand this part but original is not available. So replacements vary, good alternatives at 2.4 ohm and 3 ohm resistance and a few various bikes have suitable coils. Correct me please but help me to understand wtf it all means. A resistance ballister before the coil to correct resistance is supposedly bad, why? What is the problem with changeing resistance and litterally doubleing it? I understand the greater the resistance, the hotter the spark (maybe?) so whats the problem with going say 5 ohm instead of 2.7 ohm? Is it just a case of needing colder plugs to deal with extra heat and then plug gap is just trial and error, possibly larger diameter leads? Does higher resistance effect timeing? Any info to help me understand is appreciated. Side note- WTF has resistance to do with, how is it put in to expanding/collapseing magnetic fields?