Farmall BN John's forklift conversion. Started having the forklift die on me. Always after it warmed up. Seemed pretty random. I chased some other gremlins thinking they were the problem. I replace the distributor with a new one because I thought I had a cap/rotor issue and and a replacement cap/rotor was not available for the aftermarket distributor that was in there- so I replaced the whole unit. Turns out that was not the problem. I recently replaced the old Zenith replacement carb with a new one (at one point I thought it was flooding, but have finally come to the conclusion that it was the intermittent spark all along). The problem still persists. I had swapped the coil about 2 years ago, but looked up symptoms of a coil going bad and one of them was stalling like I'm having. So last night I picked up a new coil at Napa - 12V, no external resistor required. The problem still persists though. It will die randomly after it's warmed up. I connect my spark tester and can see NO spark while cranking. By the way, it cranks fine and when it runs, it runs great. After I let it sit awhile I try it again and sometimes I then get spark and she starts right up. So it continues to do this. I do notice when it dies that the coil is hot, and the plug wires are hot at the boot when I go to pull the #4 off to check for spark. I have also checked that I have 12V on the positive side of the coil. FYI I have an ON/Off Switch to turn on the positive side of the coil. Anyone have any ideas why I could still have intermittent spark? Is the new coil getting hot a symptom of something or just normal?