Hi Greg, The bike is a clipper 350cc This was determined by Hitchcocks UK from the engine number, It is basically the same as the bullet with slight differences, one being the distributer and auto advance and retard mech. The manual
does say in bold letters to set fully retarded 1/16" BTDC. and not the fully advanced method.
I originally set at 5/16" BTDC in the fully advanced position and the bike was very hard to start and then when it did start it was very rough and back fired a few times before stopping. In order to get the 5/16" I had to take out the distr. adjusting screw in-order to rotate the dist. sufficient to get the 5/16"adjustment.
When cleaning up the distributer and removing the the two advance springs I did notice they appeared slightly stretched ie: coils were not tight but had a slight gap between each coil, I have 2 new ones on order.
It does start first kick with the 1/16" adjustment but gets uneven when the revs are slightly increased so I will see how it is after fitting the springs.
Thanks for you help.