NHTSA recall 20V277000
Engine and engine cooling › Engine
Yamaha Smax and 1 more
Reported May 15, 20203,116 vehicles affectedYamaha Motor Corporation, USAMaker’s number 990137
The defect
Yamaha Motor Corporation, USA (Yamaha) is recalling certain 2015-2018 XC155 scooters. The cylinder head nuts may not have been tightened properly and could loosen, allowing coolant to foul the spark plug.
The risk
A fouled spark plug could cause the engine to stall at idle and possibly not restart, increasing the risk of a crash.
The remedy
Yamaha will notify owners and dealers will replace the cylinder head gasket and tighten the cylinder head nuts, free of charge. The recall began May 29, 2020. Owners may contact Yamaha customer service at 1-800-962-7926. Yamaha's number for this recall is 990137.