claire Posted May 11, 2008 Share Posted May 11, 2008 can somebody clarify whether or not engine and frame numbers are or should be the same on early xt500 (R REG.) cheers Link to comment Share on other sites More sharing options...
emilyjudy Posted May 11, 2008 Share Posted May 11, 2008 I believe they should the same as I seem to remember a friend bought a new YZF750 in 1996 and the numbers never matched, I had bought a new YZF750 in '94 which did match. So I called to Yamaha and was told that '96 was the first year that numbers stopped being matched. Link to comment Share on other sites More sharing options...
claire Posted May 11, 2008 Author Share Posted May 11, 2008 I believe they should the same as I seem to remember a friend bought a new YZF750 in 1996 and the numbers never matched, I had bought a new YZF750 in '94 which did match. So I called to Yamaha and was told that '96 was the first year that numbers stopped being matched. Thanks for the help Claire Link to comment Share on other sites More sharing options...
R1evad Posted May 11, 2008 Share Posted May 11, 2008 It is because thats when they stopped producng engines and frames in the same factory. They used to get numbered at the point of assembly, so could be matched at that time. When engines and frames are made in different locations around the world, they are already numbered and so cannot be matched at point of assembly. Especially for models that have common engines in different frames or one frame that takes different engines. Link to comment Share on other sites More sharing options...
Guest intruder Posted June 13, 2008 Share Posted June 13, 2008 can somebody clarify whether or not engine and frame numbers are or should be the same on early xt500 (R REG.) cheers engine number/ frame number should match on a yamaha machine of that year. have had few old yamahas. engine frame numbers always matched. yamaha was the only manufacturer using matching numbers. up until about 2000 Link to comment Share on other sites More sharing options...
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