Carb tuning

Basics first. Choke off when hot?
Simple test to do when hot & you need to re-start: remove air cleaner, activate throttle while looking into the primary bores. You you see a fuel stream from the pump nozzle into each bore; if you see fuel, might be lack of spark.
No fuel, could be float level, acc pump plunger worn out, low float level, fuel evaporation, etc.