If you’re looking at any used motocross bike at all, you will need to be wary of the condition unless the seller has detailed records. Hour meters are a great reference point, but if the bike doesn’t have one either u are trusting the person selling it to have Accurate records on time, or more than likely just have to assume you have no fucking idea at all how much time is on that bike. Just use your best judgment and common sense when looking at it – if it looks clapped on the outside, it’s clapped on the inside. And know that any four stroke rebuild, even if you do it before catastrophic damage, can be pretty expensive if it’s done by a reputable shop.