Hey guys, I’m new to be forum. I recently acquired a 2000 z120 for my son. It was sitting for many years. I’ve installed the speed aggressor kit from REC Motors, as this will be for my 8 year old and I think he would have been bored with it stock. Anyways my issue is that it doesn’t seem to want to move when you give it gas. When i lift the back off the ground, the track spins great. When I give it gas when the back is lifted, it rips. I’ve installed a new clutch, #35 chain, sprocket, chain tensioner, governer spring, velocity stack, and a carb cleaning. The chain isn’t too tight, and the brakes are not binding. I’m at a loss on the issue. Any ideas?