Forums 🚥 PIT STOP 🔧 Hyosung Technical Help Hyosung gv 125 tapping noise from crankshaft

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    • #6224
      Stuart Holland
      Member
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      Sep 5, 2021
      @stuart
      Wolverhampton
      Gv125

      I have noticed a tapping noise from crankshaft anyone else had same problem please

    • #6226
      ♠️ MARCEL
      Admin
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      @mf448kxn6
      North UK
      GTR

      Do you have a youtube account or instagram or tiktok that you can upload a video and share the link here , so we can have a listen.

      Or you can try to describe the noise precisely where in the bottom end you hear it ?  If it does that cold or not ?  or while neutral or riding (under load)

      Any history of the engine being opened up for overhaul if its old ?

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

    • #6231
      Moustache Man
      Member
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      @benjaminsmith
      Essex
      GV125 2016

      Yep, similar issue with me. Its something to do with the clutch, been riding like that for years and nothing terrible has happened.

      It only occurs at low revs/idle, in neutral when the clutch is disengaged. The second you pull in the clutch, the noise goes away.

      I was told by a garage that it was just regular clutch rattle/noise, and it has not been a problem since (with failing MOTs/servicing). It hasn’t affected performance either.

      • #6315
        Carter
        Member
        • Topics: 6
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        Sep 5, 2021
        @carter69
        Llanelli
        GT125R

        @benjaminsmith

        Yep, similar issue with me. Its something to do with the clutch, been riding like that for years and nothing terrible has happened. It only occurs at low revs/idle, in neutral when the clutch is disengaged. The second you pull in the clutch, the noise goes away. I was told by a garage that it was just regular clutch rattle/noise, and it has not been a problem since (with failing MOTs/servicing). It hasn’t affected performance either.

        this is a different noise and a different problem and is caused by either the clutch release bearing or faulty or unevenly tentioned clutch springs

    • #6298
      Stuart Holland
      Member
      • Topics: 2
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      Joined:
      Sep 5, 2021
      @stuart
      Wolverhampton
      Gv125

      Ok thanks

    • #6314
      Carter
      Member
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      Sep 5, 2021
      @carter69
      Llanelli
      GT125R

      This is a common problem in these engines I have have it a couple times it’s the condrod bearing has failed unfortunately it’s a one piece crankshaft so you would have to replace the whole crankshaft £220 or you could pick up a used bottom end for less than half the price lol however often if the noise gets quite loud the the extra play in the bearing could allow the piston to come down too far am may shatter crack at break the fin off the piston

    • #6342
      DAVID
      Member
      • Topics: 4
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      Sep 5, 2021
      @bowie
      norwich
      GT 125R AQUILA

      Hi Guys, is this on the new 2021 bikes, I hope to god it’s not, as its getting sent straight back to Korea

    • #6384
      ♠️ MARCEL
      Admin
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      @mf448kxn6
      North UK
      GTR

      Hi Guys, is this on the new 2021 bikes, I hope to god it’s not, as its getting sent straight back to Korea

      2 or 5 Year warranty (dependent on Sinnis UK and your dealer & if Hyosung still wants to Honor 5yrs , but i think so.) , and i wouldn’t worry too much as  the injected engine is entirely different ,  so any issues your dealer will sort it for you under warranty , just take care of her and she will keep going.

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

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