Harley-Davidson (HOG) is recalling nearly 46,000 motorcycles in the U.S. because they could stay in gear due to clutches that won't fully disengage.

The recall covers certain Electra Glide, Ultra Limited, Police Electra Glide, Street Glide, Road Glide and Road King models from the 2014 and 2015 model years.

Harley says in documents that gas bubbles can cause the clutch master cylinder to lose its ability to fully disengage the clutch, especially if the bike has been parked for a long time. This could cause a rider to lose control of the motorcycle if it's started in gear.

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The problem was found through customer complaints. Harley reported 27 crashes and four minor injuries.

Dealers will flush the clutch and rebuild the master cylinder.