I have been working on these engines for years and this one has me stumped. I bought an R last fall, owner really had to pull it to get it going. I hauled it home and got busy. By winter time It would not start so I pushed it in the shed. It won't start now-no spark. I have been chasing electricity around, switch works , current to the coil and to the points. No spark. I tried 3 different coils, including a new one, no change. I put in new points/condenser/rotor-nothing. I tried another coil wire-nothing. If I had another cap here, I'd try that. Am I over looking something? The problem has to be in the high voltage circuit. I know this tractor ran good years ago when it was at my plowing bees, but it has not been used lately, so it has been neglected for 7 years but it has been in a shed. The tractor has a good paint job and new tires but sure could use new wiring. These old tractors are fun? Brian