I asked Pete at the 100,000 or so mark, if there was anything pre emptive that I should do just out of good manners.
He said he thought it’d be asking for rings at some point, but after I told him that I routinely have no need to top up the oil between 10,000 k intervals he stated that I should leave it to “....” alone..!
Although he thought a camchain would not go astray.
So I did that.
The sport wasn't drinking any oil but the piston skirts were stained with fuel and we got a lot of compression/torque back after the birthday. Depending on you intentions with the old thing and how often you ride it, rebuild it now and contiune to enjoy it with a fresh motor, or lightly use it with everything contiuning to deteroraite.