I eventually ended up buying the Haynes Chinese 125 manual, and goes through a complete engine rebuild, which should be of help during my rebuild.
Thought i would post this info here for when/if people in the future try and find a guide to rebuilding a Pulsar engine, as i struggled myself to find any information.
I now have an absolute c**t of a flywheel bolt to try and remove before i can make use of the manual!