We've probably had this thread several times in the last couple of years... but everyone's mileage changes if they ride regular!
My 99 that is pictured at the bottom of my posts is only a couple of hundred miles from passing 30k!
The other 99 is approaching 15k.
But the poor old 87 still hasn't broken 7k yet.
I guess the two old grandpas who owned the 87 before me never even
rode it hard enough to pop the plug in the head. But I did.
Now I get to fix that drippy smoke hole this winter... :'(