Ok so I have bought a Brand New 66/80cc bike motor off on ebay, installed correctly and everything but it is VERY HARD TO START meaning that every time I try to start it it pedals hard and Im thinking it might be something wrong with the cylindar or what. I am new to the whole bike/motor scene but i wonder if anybody has this problem with their too. I tried contacting the seller but he just referred me to a video on youtube with no help at all. Can anyone help me out with this???? AND I am thinking of just takeing it apart to see what the problem is but I can wait.