Afternoon!.. Firstly id like to say... im a motorcycle

!! ive bought my first project bike a 87 FZR1000! its a beast!.. everything runs fine how ever im at the last stages of stripping it and i cannot remove the sprocket cover?!? am i missing something?. and has any1 a idea on what exaust system i can use on it? or anythat will fit as the one with the bike is rotten!!

or were are the cheepest places?

..
Thank you!!!
