Hello, i just recently did a motor swap on my 02 Cbr600f4i. After getting it all hooked up i started it an it ran nice but then had smoke coming from head gaskets that got better but still some. But then, my bike all the sudden started sounding like a card in the spoke of a tire clanking! If sitting on bike top of motor right side (head of motor). Everyone was saying cct (cam chain tensioner) but doesnt have tht higher pitch jingle rattle they described. Also read, could be because of leak in exhaust manifold? This is my first time doing a bike so please could use some imput or help...