It has higher miles than average, but if he/she can show you service records what has been replaced when it would help. If you want to be 100% sure have a scooter shop do a compression test (you would need to pay for).
If it's in nice shape it is a good starting price, the rest is negotiation what you wish to pay. With 26,000 mile he will not have a lot of buyers wanting it, unless sit is "cheap". My opinion.
Eric
