1) Engine problems.. If your quad wont run..post in here.

quad revving on its own when start...video included

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Old Dec 3, 2019 | 03:11 AM
  #11  
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There are two idle screws, idle mixture and idle speed (throttle stop), which is seized? As listed above, an intake manifold air leak will cause the problems you started with. Yamahas are known for manifold cracks, so check that.
 
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Old Dec 3, 2019 | 07:40 AM
  #12  
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Maybe posting in the Yamaha section would help.
 
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