Yamaha has made the recall of its line of 2015 YZF-R1 motorcycles official, issuing a notice through the National Highway Traffic Safety Administration. The recalled models were produced from August 1, 2014 to June 1, 2015. There are potentially 2921 units affected.
In the Defect Notice submitted to the NHTSA on November 23, 2015, Yamaha states that “in the affected motorcycles, both second gear wheel and pinion gears in the transmission may break as a result of extremely high stress and/or improper shifting. This is due to inadequate component strength and stress concentration at the gear teeth bottom land. In addition, the third and fourth wheel gears may be deformed or break as a result of excessive stress caused by hard usage.” The issue can cause the transmission to lock, causing loss of control and increasing the chance for a crash and injury.
Yamaha estimates that 100% of the YZF-R1s produced in the indicated timeframe are afflicted with the transmission issue. There are no reported injuries or incidents related to the issue cited in the Defect Notice.
Yamaha Motor Corporation, U.S.A. was notified by Yamaha Motor Company, Ltd. on November 13, 2015 that the “situation exists.” The issue was discovered during a quality control review.
Owners will have the transmission assembly replaced with one that has improved durability, according to the Defect Notice, free of charge. Owners may contact Yamaha customer service at 1-800-962-7926 for more information. Yamaha’s recall ID is 99100.
Owners may also go to www.safercar.gov or call the NHTSA Vehicle Safety Hotline at 1-888-327-4236 for more information. The NHTSA campaign ID number is 15V802000.