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Notification number
1222770
Notified
14 December 2015
Make
Yamaha(ヤマハ)
Sold as
YZF-R1、YZF-R1M
Model codes
RN39, RN40N
Part at fault
M/T
Vehicles covered
598
Filed as
Recall, imported vehicle
Register
Japan — Ministry of Land, Infrastructure, Transport and Tourism

What the ministry says is wrong

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。

What is to be done about it

全車両、変速機のギヤ一式を対策品に交換する。

The two passages above are quoted in Japanese because that is the language the ministry published them in. This site keeps the wording a register had when it was read, and does not translate a safety notice.

Source: Ministry of Land, Infrastructure, Transport and Tourism website (出典:国土交通省ウェブサイト), used under the Public Data License 1.0. This site gathered the record, grouped it by notification number and set it in English around the ministry's own words; the notice itself is unaltered. CarsMultiverse is not the ministry and not a safety authority. To act on this notice, use the ministry's own document.

The Japanese register on this site

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