Yamaha Serial number model and year lookup, 10:11 AM I just purchased a boston whaler 18' outrage with two yamaha 85 hp motors and I need to know the year of the engines the tags on transom bracket are faded, but what I could read is top it say Yamaha 85 AED and underneath it is a serial number 688 0 319154. How do you read Yamaha outboard serial number? There is no user information contained in the Yamaha outboard serial number other than identification of the particular engine to which it is.
Check the number.Is it preceded by another group of letters and numbers?Where was it made. Japan or Belgium?If it begins 6A1- its a 1990 Japanese one ( rebadged Yamaha??)If it begins 646- it's a very old ( pre 1974 ) Japanese oneI cannot see any US or Belgium numbers that it might beThere are a lot of gaps in the records for some reasonTwo linksthemselvesandDiagrams, esp of the cowling, on the site Philip has given might be useful aid to identificationIf its old it's probably not worth insuring.Last edited by VicS; 08-06-12 at 10:03. The motor is a new old stock item, not yet run ( in fresh water ) if I believe the owner, and I think I do, it looks and runs like new.The plate states Mariner 2M/6A1/150875/ Made in JapanPhillip's site shows it matches their 1985 model, and manuals with it are copyright 1985, so it shouldn't be older.I'll email Porthcawl a guess of 1985 with a pic-Cheers!NickNow given all the relevant details it looks as though it is a 1990 one. The first suggestion I made in my earlier postSee the list of Japanese numbers on Brunswick Marine's website.I am sure the good inhabitants of Porthcawl will appreciate the picture though.Last edited by VicS; 08-06-12 at 13:43.