engine noise

[dylan]

its like its coming from inside the engine

 

[FurryOnTheInside]

its like its coming from inside the engine

Do what Jaguar said, see if there's anything making marks on the inside of the clutch cover (the big flat thing on the right hand side).

 

[Chris Jones]

when i get t0 about 35-40 kmh my enigine makes a rattling noise

try tightening absolutely everything. When I got up to about 35+kmh I heard a strange vibrating noise. Turned out to be the brackets securing the engine to the bike were really loose thus causing the engine to shake when reaching high speeds. Hope this helps