Engine number and year of manufacture: Difference between revisions

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[[Category:Engine]]

Every once in a while, we get a post asking if ~~anyone knows what~~ year an engine is from~~, given~~ the engine number. Well, Kawasaki doesn't give out this information, as it would allow people to figure out their sales figures, which are confidential. However, one can observe and write stuff down. This is an unofficial list put together from experience and physically verified by [https://www.ninja250.org/AP AP].

Every once in a while we get a post asking if you can tell the model year of an engine from the engine number. Well, Kawasaki doesn't give out this information, as it would allow people to figure out their sales figures, which are confidential. However, one can observe and write stuff down. This is an unofficial list put together from experience and physically verified by [https://www.ninja250.org/AP AP].

There’s no guarantee that this list is 100% accurate, but these are pretty solid numbers, obtained by comparing VIN and engine numbers. The engine numbers are sequential, so there is a start and end range. Keep in mind that the engine number only dates the case, since the other parts could have been changed. But this is usually very unlikely.

There are casting marks on various parts of the engine that give the year they were made. The head and valve cover have these markings, and the engine case halves do, too. The complete engine number is just in one place~~. This is on~~ the rear right side of the crankcase, above the grounding bolt.

There are casting marks on various parts of the engine that give the year they were made. The head and valve cover have these markings, and the engine case halves do, too. The complete engine number is just in one place: the rear right side of the crankcase, above the grounding bolt.

[[image:EX250_EEA15620_2005-2.jpg|~~150px~~]]

[[image:EX250_EEA15620_2005-2.jpg|80px]]

[[image:000_0006.JPG|140px]]

[[image:845833.jpg|150px]]

There is a little start and end data missing, but that should only put some of the list off by one model year for those years in which little information is available (early 1987, 1989, 1997, and 2000). The same engine was used in these bikes:

There is a little start and end data missing here, but that should only put some of the list off by one model year for those years in which little information is available (early 1987, 1989, 1997, and 2000).

====EX250F====

The same engine was used in these bikes:

*EX250- E/F/G/H

Line 61:

Line 66:

2007 EX250EEA29???

====~~EX250- J~~/K====

====EX250J/K====

2008 EX250JE000001 Carb<br>

Line 74:

Line 79:

2012 EX250JEA95??? and continues through EX250JEAA????

==Examples==

Here are some engine numbers and the decoded year of manufacture.

EX250EEA22821 = 2006

[[image:000_0009.JPG|150px]]

EX250EEA15699 = 2005

[[image:000_0007.JPG|150px]]

EX250EE168247 = 2001

[[image:000_0008.JPG|150px]]

@@ Line 1: / Line 1: @@
 [[Category:Engine]]
-Every once in a while, we get a post asking if anyone knows what year an engine is from, given the engine number. Well, Kawasaki doesn't give out this information, as it would allow people to figure out their sales figures, which are confidential. However, one can observe and write stuff down. This is an unofficial list put together from experience and physically verified by [https://www.ninja250.org/AP AP].
+Every once in a while we get a post asking if you can tell the model year of an engine from the engine number. Well, Kawasaki doesn't give out this information, as it would allow people to figure out their sales figures, which are confidential. However, one can observe and write stuff down. This is an unofficial list put together from experience and physically verified by [https://www.ninja250.org/AP AP].
 There’s no guarantee that this list is 100% accurate, but these are pretty solid numbers, obtained by comparing VIN and engine numbers. The engine numbers are sequential, so there is a start and end range. Keep in mind that the engine number only dates the case, since the other parts could have been changed. But this is usually very unlikely.
-There are casting marks on various parts of the engine that give the year they were made. The head and valve cover have these markings, and the engine case halves do, too. The complete engine number is just in one place. This is on the rear right side of the crankcase, above the grounding bolt.
+There are casting marks on various parts of the engine that give the year they were made. The head and valve cover have these markings, and the engine case halves do, too. The complete engine number is just in one place: the rear right side of the crankcase, above the grounding bolt.
-[[image:EX250_EEA15620_2005-2.jpg|150px]]
+[[image:EX250_EEA15620_2005-2.jpg|80px]]
+[[image:000_0006.JPG|140px]]
 [[image:845833.jpg|150px]]
-There is a little start and end data missing, but that should only put some of the list off by one model year for those years in which little information is available (early 1987, 1989, 1997, and 2000). The same engine was used in these bikes:
+There is a little start and end data missing here, but that should only put some of the list off by one model year for those years in which little information is available (early 1987, 1989, 1997, and 2000).
+====EX250F====
+The same engine was used in these bikes:
 *EX250- E/F/G/H
@@ Line 61: / Line 66: @@
 EX250EEA29???
-====EX250- J/K====
+====EX250J/K====
 EX250JE000001 Carb<br>
@@ Line 74: / Line 79: @@
 EX250JEA95??? and continues through EX250JEAA????
+==Examples==
+Here are some engine numbers and the decoded year of manufacture.
+EX250EEA22821 = 2006
+[[image:000_0009.JPG|150px]]
+EX250EEA15699 = 2005
+[[image:000_0007.JPG|150px]]
+EX250EE168247 = 2001
+[[image:000_0008.JPG|150px]]