This guide has been taken from R1-Forum.com, the original is here: https://www.r1-forum.com/threads/how-to-04-06-r1-replace-stator-generator.212187/ I have taken the guide and pictures and remade it here with some edits to wording and image presentation to preserve this information for anyone in the future that may be affected and may not be able to
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The 2004 onwards R1 and FZ1 model had issues with the charging system rotor magnets breaking off the epoxy and completely destroying the stator and sending metal particles all through the oil. It isn’t an “if” it’s a “when” it’ll happen as the epoxy gets brittle over heat cycles. They
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If you have some time, check out this brilliant breakdown by youtuber “The Workshop” regarding the There was some chatter on the internet a few months after the first 2015 R1 models were released regarding spun bearings and crankshaft failures, but nothing came of it. The only issues Yamaha acknowledged
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