Ok so now that I have found it is definitely an 04 I am now focusing on the jetting.
At the moment it is running 37.5 pilot, 440 main and needle 2nd clip. Pro circuit recommend 35, 360, 2nd clip. At the moment it has a small bog just as you open the throttle but jails ass from bout 1/2 throttle on. would that be expected with the difference in jetting?
Guess I should order the recommended jets an give em a go.