Need some info

[steve181]

I bought a 2001 440ex in ohio ( mods in sig)

im trying to find out if any1 knows who raced this bike, it has "Young" stamped on the left side of the head, if any1 knows any info plz lmk

Also i need help with a noise, when i shut the bike off i hear a very loud clunking noise, or if it doesnt start right of the bat

i could make a quick video if it would be more useful

[katch26]

well the loud clunking / hard or "messy" starting on my other bike has always been the one way bearing. Not sure on the 400 though