I managed to get the oil pump adjusted as shown in the diagram in the technical section by getting rid of one of the nuts so that there was more cable to play with.

It does seem strange how I have it at the moment however. The oil pump only begins to open at about 1/3 - 1/2 throttle. Also, the pump only opens to about 1/3 of it's possible range. Why would they make the pump able to be opened all that why if its supposed to be opened by a relatively small way?

Did this diagram come from a workshop manual? I'm just worried that I'm not going to get enough oil the way I have it adjusted now - just seems counter intuitive. Also there is another mark on the pump closer to where the head of the cable sits. What is this for?