Is there something about it that makes you suspect it is out of tolerance?
I have a 74 CB550 with 47000 miles (~76ooo km) on the original cam chain. Still runs like a scalded cat. Weeps oil, though.
Cheers,
done, just a cabron clean and new gaskets
![Smiley :)](http://forums.sohc4.net/Smileys/default/smiley.gif)
you have saved me like $200! i owe you, what do you guys drink over there?
![Grin ;D](http://forums.sohc4.net/Smileys/default/grin.gif)
thanks a ton mate! sound like your bike has been well looked after, like mine is going to be, from now onward, poor thing has been around the block a few times!