Carby GV125 Idle at 8k!!

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This topic has 4 replies, 3 voices, and was last updated 2 years, 7 months ago by ♠️ M77.

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- Mar 15, 2024 at 5:15 PM #12607
  
  Oscar
  Participant
  
  Hi All, recently rebuilt the carb on my busted up GV125, and now it runs on the button but once on it will shoot up to around 8k rpm, at which point I switch it off. The throttle cable is currently disconnected but the throttle valves are shut. any ideas why is this happening?? thanks 🙂
- Mar 15, 2024 at 7:24 PM #12608
  
  Simon
  Participant
  
  Make sure the slides are fitted correctly sounds like you have one that’s not been installed right.
- Mar 15, 2024 at 7:44 PM #12610
  
  ♠️ M77
  Keymaster
  
  Sounds silly from me but is there any chance also the “Choke” is still active ? = More revs usually means bike is being feed extra fuel or air from somewhere even if you disconnect throttle cable.
  - Mar 18, 2024 at 12:00 PM #12634
    
    Oscar
    Participant
    
    Choke is filly closed, Ive disassembled it and am going to do a full rebuild, do you know the model of the Mikuni carb on the GV125? Ive looked all over for a model number or something. Thanks 🙂
- Mar 18, 2024 at 7:41 PM #12639
  
  ♠️ M77
  Keymaster
  
  Oscar wrote:
  
  Choke is filly closed, Ive disassembled it and am going to do a full rebuild, do you know the model of the Mikuni carb on the GV125? Ive looked all over for a model number or something. Thanks 🙂
  
  Quote
  
  BDS26 Twin Custom (As half the parts inside were fine tuned for Hyosung , even the choke rail + carb slides + floats + 1.2 size float seats etc , brackets to hold both carb cylinders, custom floats as Mikuni made for Hyosung bikes under OEM supply chain ) =
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This topic has 4 replies, 3 voices, and was last updated 2 years, 7 months ago by ♠️ M77.

Viewing 3 reply threads

Author

Posts
- Mar 15, 2024 at 5:15 PM #12607
  
  Oscar
  Participant
  
  Hi All, recently rebuilt the carb on my busted up GV125, and now it runs on the button but once on it will shoot up to around 8k rpm, at which point I switch it off. The throttle cable is currently disconnected but the throttle valves are shut. any ideas why is this happening?? thanks 🙂
- Mar 15, 2024 at 7:24 PM #12608
  
  Simon
  Participant
  
  Make sure the slides are fitted correctly sounds like you have one that’s not been installed right.
- Mar 15, 2024 at 7:44 PM #12610
  
  ♠️ M77
  Keymaster
  
  Sounds silly from me but is there any chance also the “Choke” is still active ? = More revs usually means bike is being feed extra fuel or air from somewhere even if you disconnect throttle cable.
  - Mar 18, 2024 at 12:00 PM #12634
    
    Oscar
    Participant
    
    Choke is filly closed, Ive disassembled it and am going to do a full rebuild, do you know the model of the Mikuni carb on the GV125? Ive looked all over for a model number or something. Thanks 🙂
- Mar 18, 2024 at 7:41 PM #12639
  
  ♠️ M77
  Keymaster
  
  Oscar wrote:
  
  Choke is filly closed, Ive disassembled it and am going to do a full rebuild, do you know the model of the Mikuni carb on the GV125? Ive looked all over for a model number or something. Thanks 🙂
  
  Quote
  
  BDS26 Twin Custom (As half the parts inside were fine tuned for Hyosung , even the choke rail + carb slides + floats + 1.2 size float seats etc , brackets to hold both carb cylinders, custom floats as Mikuni made for Hyosung bikes under OEM supply chain ) =
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