Hi Guys further to this post i can now add with great pleasure that i have solved this puzzle. Turned out to be the wiring from the crank shaft position sensor

on the loom side. Now running great
Cost to repair less than £1 lmfao and now have a very nice bike. . . Not been able to ride yet due to mufflers being destroyed through explosion in the cans. . . Yep exhaust full of petrol plus plug leads on in wrong order and complete devastation of the pipes. . . But i aint mad . . . . I am soooo happy

Cheers Steve