Hamwich, you're absolutely right and I did do all these things. In fact also had a recent problem on my 1935 Super Sports that turned out to be the two grub screws holding the earth lead onto the battery pole being a bit loose. However, in this case it really is the starter motor, unfortunately a common problem on S1s.
Cerealsurfer, I was hoping you would reply. Message understood about not cutting floor. I have pm'd you.
Cheers
