timing chain

Hi there
the bike started making a bad noise and know is relly hard to turn over and i have noticed when turning bike over the cam shaft wont turn there is a cap on top of the head were the cam drive is how do i remove this and have you got any suggestions for me

Hi, on the opposite side of the cylinder head to the cover is a 10mm hex head bolt un do this bolt and the cover will come off.

Once removed, make sure the dot on the cam sprocket aligns with the mark on the cylinder head, while the flywheel is set correctly on the 'T' mark.
Also, check the condition of the sprockets, the chain, and the automatic or manual tensioner.

Doesnt sound good sean lee