I am new to owning a Blaster, I believe I may have a transmission issue. Once I am stopped, it is very difficult to get it in 1st, I have to shift back up and then rock it a little, and once I am going and shifting, it seems like I am going from 3rd to 5th or even 6th, like it is shifting up 2 or 3 gears instead of one, also a slight noise with the chain or something when going slow in gears, is that normal too?(I just tightened the chain) Any help or advice you guys can give will be appreciated.