NHTSA recall 07V128000

What's wrong: On certain motorcycles, the crankcase breather separator may be defected. During the molding process, the breather passage may have been blocked by a thin layer of the injected plastic material. This blockage will create a build-up of pressure inside the crankcase and may cause the left side engine seal to be pushed out of position and an oil leak will occur.

Why it matters: Oil leaking from the failed seal while riding can spray onto the rear tire or the road, increasing the risk of a crash.

The fix: Dealers will replace the breather separator, free of charge. The recall began on March 30, 2007.