ハンターカブ(JA65)のエンジン異音(カタカタ)がリコール発表されない理由と有効的な解決方法は検証段階なので、解決された方がいましたら、ご教授願いたくよろしくお願いします

At Cub meetings, I have heard stories of Hunter Cub (JA65) owners who are concerned about the rattling sound (strange noise) of the engine, and it seems that the number of vehicles with strange noises is actually increasing. Since Honda has not issued a recall, there are no concrete measures, and it seems that both dealers and owners are quite troubled. If there is anyone who has solved the problem by doing this, I would appreciate your advice. m(_ _)m *BGM used in the video FREE BGM "Spring Kitchen" by Moppy Sound https://dova-s.jp/bgm/play2892.html