What does everyone think an engine from a 2005 Yamaha YZ450F is worth. The engine has about 20 hours on it, runs perfect, always well maintained. I'm thinking of parting out my 2005 YZ 450 this year instead of trying the sell the whole unit. Might be a mistake but who knows maybe I'll make out!!! Just hate the hassles of trying to sell a used dirtbike. Any feed back would be much appreciated. I know people spend 1800 to 2500 to rebuild there blown up ones so I think at the very least it has to be worth $2000 if not a little more.