It says it was a 260cc ? Do you mean that the bottom end was the same but different top or just brakes, suspension, ect. Just got the head welded and machined back, had a pebble size hole blow out in head furthest from the flow tube. The reservoir for the coolant cracked and leaked out as the original problem. I am taking apart the bottom end now having to order a special fly wheel puller than what I have. Do you know how to get a service manual for this bike? Not just the regular purchase manual or do they have one.