G'day matey...only just seen this post...by the way...welcome to the site.
I had a look on this site... parts honda xr600 motorcycles accessories spares replacement to have a look at the engine exploded diagram so's to see if the cylinder head bolts go right through the cylinder head, through the barrel & into the top of the top crankcase or not...but I don't know which model that you have. I'm sure that they're all the same, so have a look see at the exploded diagrams & look specifically for the head bolts.
I'll have a pint of Fullers London Pride please, while i'm waiting up at the bar...:thumbup:
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