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FJR Motorcycle Forums
Technical & Mechanical Problems
USA Gen I Ignition Switch Failure
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<blockquote data-quote="torch" data-source="post: 1457908" data-attributes="member: 1295"><p>You are correct -- for model specific parts. The first 3 digits are the original model code that part was designed for. If the part is redesigned for a different model, but will still fit the original model, then the parts catalog for the original will be updated with the superseding part number and the original number discarded. </p><p></p><p>The next group of 5 define the part itself. The first 3 characters of that group indicating general section and areas of the group, the 4th and 5th identifying the specific part within that group. A "W" is used as the first character of this group to indicate a factory assembled kit that differs from production.</p><p></p><p>Digit 9 indicates a change or variation to the original (eg: valve shim thickness) and the 10th indicates the number of times the design has changed. The last two indicate finish or colour variations. </p><p></p><p>That said, Yamaha "9 series" part numbers are common too. Yamaha calls them "Interchangeable" parts -- usually COT (commercial off the shelf) items like bolts, bearings etc. Digits 2 and 3 are type identifiers, 4 and 5 are material/finish identifiers, 6 through 10 encode shape or size and the final 2 are just 0s to pad the number out to 12 digits. </p><p></p><p>But Mother Yamaha does not always follow her own rules. I doubt the ignition switch is COT and would have thought the part number for the recall kit would be a "W" number. Something like "xxx-W2501-xx-00". Maybe the eBay clones have become so prevalent that Yamaha just buys them from the Chinese factory now? <lol></p></blockquote><p></p>
[QUOTE="torch, post: 1457908, member: 1295"] You are correct -- for model specific parts. The first 3 digits are the original model code that part was designed for. If the part is redesigned for a different model, but will still fit the original model, then the parts catalog for the original will be updated with the superseding part number and the original number discarded. The next group of 5 define the part itself. The first 3 characters of that group indicating general section and areas of the group, the 4th and 5th identifying the specific part within that group. A "W" is used as the first character of this group to indicate a factory assembled kit that differs from production. Digit 9 indicates a change or variation to the original (eg: valve shim thickness) and the 10th indicates the number of times the design has changed. The last two indicate finish or colour variations. That said, Yamaha "9 series" part numbers are common too. Yamaha calls them "Interchangeable" parts -- usually COT (commercial off the shelf) items like bolts, bearings etc. Digits 2 and 3 are type identifiers, 4 and 5 are material/finish identifiers, 6 through 10 encode shape or size and the final 2 are just 0s to pad the number out to 12 digits. But Mother Yamaha does not always follow her own rules. I doubt the ignition switch is COT and would have thought the part number for the recall kit would be a "W" number. Something like "xxx-W2501-xx-00". Maybe the eBay clones have become so prevalent that Yamaha just buys them from the Chinese factory now? <lol> [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
USA Gen I Ignition Switch Failure
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