2000 Formula z 600

Haven't been here in a while, and also haven't ridden a lot in the past few years...damn kids:laugh: Anyways the sled has close to 10,000 kms on her now but last time I checked both cylinders were in the 120psi range. Do ya think its time to freshen the old girls engine, or rebuild or are these things good for 15,000 or so? I know at the end of the day its a crap shoot but curious what others think or know

Thanks all!

2000 Formula z 600