Thanks for that Kent, I went back in today and it's quite obvious how they fit! I just couldn't see it the other day, presume my brain had had enough of the cold...
a couple of other things now - I cannot get the nuts to fully capture the clocks when fitted in the cups. The clocks are loose when the nuts are fully tightened, any ideas?
The other thing is just how the harness routes along the frame & how it fits through the 'upside down hanger' that's on the tank stub.
Thanks again, Mick.