Forums 🚥 PIT STOP 🔧 Hyosung Technical Help Strange noise from rear cylinder

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    • #4671
      Mark lindsay
      • Topics: 2
      • Replies: 0
      May 20, 2020
      Points: 34

      I have a noise from rear cylinder sounds like a scraping or grinding noise I have replaced cam chain tensioner and noise still ther noise gets louder at idle wen open throttle I have a hole in exhaust near cat converter and downpipe near rear cylinder could that affect this sound I will post a video of bike running soon

    • #4676
      ♠️ MARCEL
      • Topics: 38
      • Replies: 366
      May 20, 2020
      North UK
      Points: 4,203

      Did you manage to get a video?

      If you hear metal scratching sounds going up and down rapidly near the valve head/cylinder barrel.  Thats the piston rings

      Is that what youre hearing?

      // Meditation doesn't mean you have to sit still....

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