My 1980 tomos stops running, like it runs out of gas when the temperature warms ups. The plug is dry. It happen last year and I replaced the encarwi with a deletro this spring and ran good, until the weather got warm. I try starting it with the gas cap off, doesn't help. It will run slight with the choke on for a few seconds. I replaced the condensor 4 years ago. Any help will be greatly appreciated.