Welcome to Vapor Talk! I looked at their website and that looks like it may be a KR808-D1 model (can't say for sure though). It uses cartomziers (one piece that screws on to the battery)? If you're using cartomizers, I would recommend that you top them off regularly (don't let them run dry). You should just be able to pop the top off and drop 8-10 drops into it every now and then (drip onto the filling, not down the center). Other advice, take longer slower drags - it's not like smoking a cigarette. Drawing to fast and hard keeps the coil from heating up enough to vaporize the juice and it can also cause you to get juice in your mouth.