This cant be normal! haha check it out

[Exrider911]

seems like it ticks more than usual. am i right or what? check out the vid. http://www.youtube.com/watch?v=JWRt3J6mSGA

this bike makes a weird noise when revved up check out this video! http://www.youtube.com/watch?v=f9DZNUedYdE

let me know what you guys think.

[Thumpin440ex]

First bike sounds normal, may need a valve adjustment but for most part ok. Second one seems as if the exhaust header needs tightened up. Hard to tell if it is something loose or an actual engine issue

John

[CJM]

35 secs in on the 2nd video I can clearly see exhaust gasses escaping. Header needs to be tightend and or replace gaskets.

First video sounds like a bad timing chain and or timing chain tensioner.