if you remove the rockers from the pushrods on the inlet valves you can clean the ports and blow them out with an airline, keeping the valve shut will stop the carbon getting inside the engine , biodiesel is good for cleaning carbon . I recently cleaned a vw alloy Inlet manifold with mild caustic solution which worked fine , don't leave it too long as it will eat the alloy
mot testers put advisory comments on the ticket to show they have noticed it , purely to cover themselves to protect their job . if they miss items they can loose their ticket .
I have a 94 Classic that came with just door keys,
I have found an original type used single button key fob , is it possible to check if the fob is working and compatible ?