Jesse James Drags TMZ Boss Through the Mud

9/14/2010 9:30 AM PDT
Jesse James had a total breakdown during an off-road race in Primm, Nevada this weekend -- and sources who know nothing about cars have determined the whole thing is Harvey Levin's fault.

As we previously reported, James threw a HL decal on the side of his badass custom-built racer ... despite multiple warnings that Harvey has a terrible history with cars.

So when the truck was set to make its official debut -- everything went to hell ... meaning the car broke down mid-race and never crossed the finish line.

He may be the size of a leprechaun ... but he's clearly no lucky charm.