by gap I meant the gap between the coil pickup and the magnet, it needs to be real close, paper thin and can be moved by undoing the screws and adjusting, 2 far away = no spark.
The carb has no involvment if you cannot get it to spark, as you have no switch it only leaves the coil and gap, maybe plug, if you had a spare change it just to verify spark, also check inside the boot for poor connections.
It a real simple setup, fuel, spark, bang!!