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Vehicle recall 20V277000 · May 15, 2020

Yamaha XC155 and XC155F

The cylinder head nuts may not have been tightened properly and could loosen, allowing coolant to foul the spark plug.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary
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.
Consequence
A fouled spark plug could cause the engine to stall at idle and possibly not restart, increasing the risk of a crash.
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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Recall details

NHTSA campaign
20V277000
Reported to NHTSA
May 15, 2020
Filed by
Yamaha Motor Corporation, USA
Manufacturer campaign
990137
Owner notification
May 29, 2020
Vehicles potentially affected
3,116
Initiated by
the manufacturer
Components
Engine and engine cooling › Engine
Recall 20V277000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Has your Yamaha been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Yamaha dealer can also check your VIN. Recall repairs are free.