74 340 tnt
I have a 74 TNT that I picked up about a month ago. Really good shape and ran good when I bought it. When I got home I was going to go for a ride and found out I was running on one cylinder and went nowhere with a load on. Decided to give it a new belt, plugs. After that it backfired bad out the carb, exhaust and up the pulse line(?) from the crankcase. Discovered poor spark on the mag side. Installed a new coil. Cleaned points. No more backfire but now won't stay running after it starts warming up(30 sec to a minute, after cold start, fires but won't run) Have set the Tilly carb to spec many times. Any suggestions would be very apreciated!