Help Identify Year of 50 HP Yamaha!

bojango541

Petty Officer 2nd Class
Joined
Jan 27, 2009
Messages
128
Just picked up a 50 HP Yamaha and trying to to determine the year of the motor. This is what is stamped on the ID Bracket of the motor: YAMAHA 50DETO 6HS L 411327 Made is JAPAN

I've done some digging around online and it looks like it might be a 1987. The motor is however very clean and appears to be newer. Any help would be great! Thanks.
 

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: Help Identify Year of 50 HP Yamaha!

Marine Engine Look-Up Guide: Yamaha
The Model Year is indicated by a lower case letter in the black field in the lower left or right corner of the motorplate.Note that the letters have been reused throughout the years.
1980 - S1990 - D2000 - T
1981 - R1991 - C2001 - S
1982 - Q1992 - B2002 - R
1973 - Z1983 - P1993 - A2003 - Q
1974 - Y1984 - N1994 - Z2004 - P
1975 - X1985 - K1995 - Y2005 - N
1976 - W1986 - J1996 - X
1977 - V1987 - H1997 - W
1978 - U1988 - G1998 - V
1979 - T1989 - F1999 - U
 

Capt Ken

Commander
Joined
Jul 30, 2002
Messages
2,269
Re: Help Identify Year of 50 HP Yamaha!

Both N and O was used in the first year Yamaha outboards were imported into the states. That year was 1984. You would see N on one side of the transom bracket and O on the other.
 

bojango541

Petty Officer 2nd Class
Joined
Jan 27, 2009
Messages
128
Re: Help Identify Year of 50 HP Yamaha!

Thanks, I am not seeing any lower case letters on the plates. At first I assumed the H on the first plate meant it was an 87' but it is not lower case. Am I looking in the right place? I attached to pictures of the plates. F32567DE-540B-48E3-B265-3E26290A3E6D-8643-000008A7AD5A9E35_zps6118e92b.jpg E613E3FE-B624-4AF4-8897-2B8FB9EA5421-8643-000008A7A260ECDD_zpsafc5466d.jpg
 
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