Parts Manuals: YAMAHA Two Stroke Outboards: 25HP Unsure what year your engine was manufactured? Use our model guide to help! 1978 pdf 2.3 MB1981 pdf 1.5 MB1985 pdf 2.6 MB1986 pdf 1.9 MB1987 pdf 1.8 MB1988 pdf 14.7 MB1989 pdf 2.4 MB1990 pdf 2.9 MB1991 pdf 2.5 MB1992 pdf 2 MB1993 pdf 2.3 MB1994 pdf 5.3 MB1995 pdf 6.7 MB1996 pdf 1.8 MB1997 pdf 2.1 MB1998 pdf 2.1 MB1999 pdf 3.4 MB2001 pdf 718.1 KB2002 pdf 811.2 KB2003 pdf 979.3 KB2004 pdf 614.5 KB2005 pdf 657.3 KB2006 pdf 694.1 KB2007 pdf 817.5 KB2008 pdf 817.4 KB2009 pdf 811.5 KB2010 pdf 811.6 KB2011 pdf 678.2 KB2012 pdf 676.5 KB2013 pdf 701.2 KB2014 pdf 702.2 KB2015 pdf 702.2 KB2016 pdf 843.1 KB