Thanks for the rapid reply everyone!
The Battery is brand new..
I think I have solved the problem with poor spark; I discovered an old and
extremely rusty relay that i replaced with a new one; Now the spark is much
clearer and more even.
I will now try to start the engine and I will update this thread if it works or
not.
sorry for my bad english
Edit: Andy, do you have a part-number on those NGK silicone caps?