The coil may be wrapped around the wick way too tight.
Perhaps try pulling out one or two thread of the wick to increase the gap so the juice flows better?
Tight coil around wick = bad juice flow = excessive temperature = carbon build up.
Apply a slight gap between the coil and wick = better flow, less carbon build up.
Perhaps try pulling out one or two thread of the wick to increase the gap so the juice flows better?
Tight coil around wick = bad juice flow = excessive temperature = carbon build up.
Apply a slight gap between the coil and wick = better flow, less carbon build up.