ducati air cooled motor experts, differences between the years?

i was wondering what is the difference between ducati hypermotard engines from 08-09 and 2010+ evo. are they the same or are there major differences. how can i spot which is which.

thanks
sami

 

The EVO is considerably improved from an engineering perspective, but if you're talking about 'seat of the pants' feel, it's not crazy different.

The EVO engines from 2010+ have a reshaped combustion chamber/cylinder head with a single spark plug instead of a dual spark. The evo has a slightly higher 11.3:1 compression, different camshafts and makes about 5hp peak over the old DS engines.

The EVOs also use a vacural casting method that creates thinner engine cases for lighter weight and also magnesium clutch and stator covers. I think the weight difference is somewhere around 10lbs.

 

Thanks. That was very helpful.