Im going to start dirt biking and i dont no what to do. Well first of all im around 5'10, 165pounds and this will be my very first dirtbike. I am interested in a new perhaps used 04 crf150f which is a 4 stroke or going in the other and cheaper direction and going for a 1990 and newer 2 stroke 125 or perhaps something bigger. I have been told that the crf150f lacks in power and i would get bored of its power quickly. I will mainly be trail riding and doing occasional jumps. Im not going to be riding tracks or anything.