Yes, I fitted the cam chain tensioner and guide,then bolted down the tensioner slipper holder onto the top of the tensioner before loosening off the tensioner bolt at the front of the engine.
Before I let the bolt off the tensioner slipper was flush with the barrel head.
I reasoned that if I loosened the tensioner slipper holder the tensioner slipper would move upwards if the horseshoe tensioner thingy was doing its job.
It did.
Therefore can only assume everything working ok and that the cam chain is at correct tautness.
Cheers Foggy
PS Note that I have spelt tautness correctly this time