A couple of weeks ago I started to hear a strange sound from my engine, so I tore it down and found one of the timing chain guides had broke a caused the chain to slap against the stator(making lots of metal in my oil). I also found both cam gears and the crank gear are worn very badly. Anyhow for the last week I have been rounding up parts for my bike(I just ordered about $1000 worth of engine parts I found bad). Sucks the crank gear is part of the crank. Tonight I decided to start cleaning every thing up. I cleaned all the metal out of every where I could think of. One thing that really surprized me was there was not that much metal in the screen that srews up into the frame, however I decided to flush the frame with brakecleaner and this is what came out. Just a reminder, anyone who rebuilds there yz should definetly clean everything thourouly. Have a great day.