All recalls
Published 14 Dec 2015 Ref JP-1222770

Yamaha: M/T

Translated from Japanese · machine translation

Country
Japan
Published
14 Dec 2015
Units affected
598
Reference
JP-1222770

Affected vehicles

Yamaha YZF-R1 2015 Yamaha YZF-R1M 2015

Hazard

The transmission gearing has insufficient strength. During circuit driving or similar high-stress operation, performing gear shifts while rapidly opening the throttle fully can impose excessive stress on the affected gear. Continued use may result in crack initiation and eventual gear failure, potentially leading to loss of vehicle mobility in severe cases.
Show original (日本語)
変速機において、ギヤの強度が不足しているため、サーキット走行等でスロットルを急全開にして加速しながら変速操作を行うと、当該ギヤに過大な応力が加わることがある。そのため、そのまま使用を続けると、亀裂が生じて破損し、最悪の場合、走行不能となるおそれがある。

Remedy

Replace the complete transmission gear set with updated components on all vehicles.
Show original (日本語)
全車両、変速機のギヤ一式を対策品に交換する。

Official source

View the official recall notice