Trim any fat from the chicken thighs and place in a large freezer bag. To the bowl of a food processor, add the lime juice, lime zest, cilantro, olive oil, honey, cumin, salt and pepper and whiz to combine, about 30 seconds. Reserve ¼ of the marinade and pour the rest into the bag with the chicken and refrigerate for 30 minutes up to overnight.
Prepare a grill on medium high, leaving one side of the grill on low or off. Grill the chicken for about 14 minutes, turning often. Once each side has seared, if the chicken pieces seem to be getting too charred, move the chicken pieces to the cooler side of the grill to cook.