Yamaha is recalling the 2015 SMax because of a problem that can cause the speedometer to stop working. The recall affects 2,640 scooters in the U.S. The SMax XC155 is also sold in other markets (where it may known as the Majesty S). A similar recall has been announced in Japan.
According to documents released by the National Highway Traffic Safety Administration, the speed sensor lead wire may not be sufficiently secured and may become destabilized when the front wheel is turned or through front suspension action. This can cause the sensor lead wires to fatigue and break, preventing the vehicle speed from being relayed to the speedometer.
Yamaha Motor Corp. U.S.A. first received word of the problem on Dec. 2 from Yamaha Taiwan following a quality control review on another model that uses a similar design.
Dealers will replace the speed sensor assembly on recalled units with a redesigned part that uses two retaining clips to hold it in position. The original speed sensor assembly only used one retaining clip.