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

Yamaha grizzly 450 engine noise

  #1  
Old 02-05-2019, 07:13 PM
Weekend Warrior
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Join Date: Feb 2019
Posts: 3
Default Yamaha grizzly 450 engine noise

Need help. I just bought this thing and it sounds horrible. Is it a easy inexpensive fix, or am i doomed. Good power, just horrible metallic sound.

https://youtu.be/hB9cX8eS5Uo
 
  #2  
Old 02-06-2019, 02:27 AM
Extreme Pro Rider
Join Date: Oct 2013
Location: Lancaster England
Posts: 3,668
Default

Sounds like a valve problem, though engine noises are difficult to identify. I would check and adjust the valves, for a start.
 
  #3  
Old 02-06-2019, 05:58 AM
Weekend Warrior
Thread Starter
Join Date: Feb 2019
Posts: 3
Default Valves

Yeah after reading a bunch of threads and litening to motors online with valve problems im leaning toward a valve adjustment..hopefully this quiets it down a bit.
 
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