Thanks Rookie. The XR isn't restored, just a good clean survivor that's had a bit of TLC. I put the pipe on as it had one of those horrible supertrapp things on it. I modified the airbox intake so it can breathe. 40mm Mikuni carb. Trap door throttle. Bigger cam. Recoed the head, new piston rings and put the plastic CR fuel tank on. Even managed to score a brand new 23" front tyre! All I need to do now is get a slightly taller seat foam made up to match the rear of the tank a bit better and for better handle bar/footpeg/seated ergo's. It's a real nice bike to ride....