how often should i get this rebuilt ? ? ? ???
Every 25,000 to 30,000 miles is recommended mate.
what size pulley do you run on it? This effects services times more than anything.
Ah yes silly me i just took it that you had a smaller pulley, as hayesey has just said this will have an implication on the service times
no its the stage 5 one ayy all its internals have been played with and bored out and i think its got a 62mm pulley
62mm are you sure? that's very small. you're probably looking at sub 10k service intervals with that. People have generally found that 65mm is the smallest you can reliably run.
mine seems to be rather small (the pulley that is!)