Engine number and year of manufacture: Difference between revisions

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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 ~~engine number~~. The head and valve cover have markings for when they were made, and the engine case halves do, too.

There are casting marks on various parts of the engine that give the year they were made. The head and valve cover have markings for when they were made, and the engine case halves do, too. The complete engine number is just in one place, though.

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:

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 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 engine number. The head and valve cover have markings for when they were made, and the engine case halves do, too.
+There are casting marks on various parts of the engine that give the year they were made. The head and valve cover have markings for when they were made, and the engine case halves do, too. The complete engine number is just in one place, though.
 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: