Quote:
Originally posted by ziggi
If you put yourself in the Ducati engineers shoes, what are they thinking ...
"What can we do to the old air-cooled motor to make it more upto date and sound quicker.... what about dual spark .... yes, that sounds good, 2 sparks ... must mean faster ... no-one will know the difference. Marketing will love it."
Or it might just be for emmissions but apart from being more efficient dual spark can't be that great otherwise the 999R would have it. |
Two spark plugs are used to give a more efficient burn - in the 2 valve engine the plug is not central like it is in a 4 valve engine so one each side of the valve should work better (in theory) The 4 valve design doesn't need 2 plugs as having the plug in the centre of the valves give the best combustion.