This tasty, tender pork is marinated first, then basted as it cooks, but remember to stop about 10 minutes before you take the pork off the grill, and give the pork one last turn, so any ‘raw’ marinade is cooked before removing the pork.
It will be slightly pink in the center which is perfect. If you don’t have a thermometer (instant or remote read) check it after 20 minutes by slicing into middle for a peak.