Yamaha F80A Owner's Manual page 110

If your machine requires warranty service, you must take it to any authorized Yamaha outboard dealer within the continental United
States. Be sure to bring your warranty registration identification or other valid proof of the original date of purchase. If a question or
problem arises regarding warranty, first contact the owner of the dealership. Since all warranty matters are handled at the dealer level,
this person is in the best position to help you. If you are still not satisfied and require additional assistance, please write:
When contacting Yamaha Motor Corporation, U.S.A. don't forget to include any important information such as names, addresses,
model, engine serial number, dates, and receipts.
The federal government requires each manufacturer of a motor vehicle to maintain a complete, up-to-date list of all first purchasers
against the possibility of a safety-related defect and recall. This list is complied from the purchase registrations sent to Yamaha Motor
Corporation, U.S.A. by the selling dealer at the time of your purchase.
If you should move after you have purchased your new outboard, please advise us of your new address by sending a postcard listing
your outboard model name, engine serial number, dealer number (or dealer's name) as it is shown on your warranty identification, your
name and new mailing address. Mail to:
This will ensure that Yamaha Motor Corporation, U.S.A. has an up-to-date registration record in accordance with federal law.
CUSTOMER SERVICE
YAMAHA MOTOR CORPORATION U.S.A.
CUSTOMER RELATIONS DEPARTMENT
P.O.Box 6555
Cypress, California 90630
CHANGE OF ADDRESS
YAMAHA MOTOR CORPORATION, U.S.A.
WARRANTY DEPARTMENT
P.O.Box 6555
Cypress, California 90630