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Yamaha Motor Corporation, USA (West Coast Operations)
6555 Katella Ave
Cypress, CA 90630

Yamaha Motor Corporation, USA - Kennesaw
1270 Chastain Road
Kennesaw, GA 30144

Yamaha Motor Corporation, USA - Marietta
3065 Chastain Meadows Parkway, Suite 100
Marietta, GA 30066

Motorsports Customer Relations - (800) 962-7926

Marine Customer Support - (866) 894-1626

For questions about Yamaha Generator, Pressure Washer & Multi-Purpose Engines Customer Relations Click Here or call (866) 788-7398, opt 4

For questions about Yamaha Multi-Purpose Engine emissions warranty Click Here or call (866) 788-7398, opt 4
 

Headquarters
6555 Katella Avenue
Cypress, CA 90630

Yamaha Card Customer Service Hours of Operation:
Monday – Sunday 6:00am - 10:00pm (CT)
Account # begins with 57798… (877) 327-7310

Yamaha Installment Customer Service Hours of Operation:
Monday – Saturday 6:00am - 7:00pm (PST) 
Sunday 8:00am - 3:00pm (PST) 
Account # begins with 1000… (833) 736-1588

Hours of Operation:
Monday–Friday 6:00am–7:00pm (PST)
Saturday-Sunday 8:00am – 3:00pm (PST)
Account # begins with YM… (prior to 12/2/2019)...  (888) 787-5565