Yes it does, A McCoy mc9 to exact. But at the momen i would say use a #8. I've run an OS A8 for over a month now without having to swap it. Come October we may have to mve towards a warmer plug say a #7. But for now break it in with the 9 then tune and run it on an 8.

I'm also wondering whereabouts in Dorset are you?