"The hydraulic clutch system with secondary clutch actuator part numbers 37200131 and 37200131A on the subject motorcycles may exhibit an internal leak of fluid past the secondary clutch actuator piston/seal," NHTSA documents read."If this leak continues for an extended period, the clutch master cylinder reservoir could lose enough fluid to expose the hydraulic clutch circuit to air, which may result in the inability to generate enough lift to disengage the clutch."