Preheat grill to 375 degrees F or medium heat. In a large bowl toss sweet potato wedges, sesame oil, garlic powder, and salt.
Make the dip by combining the yogurt, curry powder, lime juice, maple syrup, salt and cayenne in a small bowl. Place in the fridge until you are ready to serve.
Once the grill is preheated, place the sweet potato wedges on the grill and cook about 4-5 minutes on each side. They should get nice grill marks; make sure you watch closely so that the fries do not burn.
Once done, transfer to a plate and garnish with sesame seeds and fresh cilantro.
Serve with the yogurt curry dip.
