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2016 yz450f.jpg

Yamaha YZ450F (2016)


Owner: Goof331
Added on December 04, 2016



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Photo
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Need advice on cam chain - gears see pictures attached


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9 replies to this topic
  • TX-SANDMAN

    TT Silver Member

832 posts
Location: Texas

Posted September 11, 2016 - 02:20 PM


Does this chain look right on the intake sprocket?

  • TX-SANDMAN

    TT Silver Member

832 posts
Location: Texas

Posted September 11, 2016 - 02:22 PM


Photo here

Attached Thumbnails

  • image.jpg


  • TX-SANDMAN

    TT Silver Member

832 posts
Location: Texas

Posted September 11, 2016 - 02:24 PM


image.jpg image.jpg

Attached Thumbnails

  • image.jpg


  • TX-SANDMAN

    TT Silver Member

832 posts
Location: Texas

Posted September 11, 2016 - 02:37 PM


I reviewed other photos online and it looks like it might be common for the intake side of the chain the ride up in the sprocket and not down in it like the exhaust side..... What do you think?

  • YZEtc

    TT Addict

3,583 posts
Location: Connecticut

Posted September 11, 2016 - 05:04 PM


Looks normal to me.

If it's old, replace it for peace of mind.


Edited by YZEtc, September 11, 2016 - 05:05 PM.


  • Thumbster21

    TT Bronze Member

225 posts
Location: Indiana

Posted September 11, 2016 - 09:10 PM


I reviewed other photos online and it looks like it might be common for the intake side of the chain the ride up in the sprocket and not down in it like the exhaust side..... What do you think?

I think that looks like a disaster waiting to happen!

Is that a new chain?

Edited by Thumbster21, September 11, 2016 - 09:13 PM.


  • grayracer513
42,929 posts
Location: California
Garage View Garage

Posted September 12, 2016 - 06:51 AM


Normal.



  • TX-SANDMAN

    TT Silver Member

832 posts
Location: Texas

Posted September 12, 2016 - 07:52 AM


GrayRacer..... Thank you. I was about to sent you a note and you beat me to it. Let me know if you are very in the Houston area with out a bike.... I have a nice yz you can ride!

  • TX-SANDMAN

    TT Silver Member

832 posts
Location: Texas

Posted September 12, 2016 - 07:54 AM


One more question. Why does chain sit up so high on the intake side and not on the exhaust side?

  • grayracer513
42,929 posts
Location: California
Garage View Garage

Posted September 12, 2016 - 08:30 AM


I'm afraid I have no idea why, if it actually does.  Some of it is an illusion caused by the presence of the raises lip inside the chain line on the exhaust side, though. 

 

The big thing to worry about with a cam chain here is that it must freely pivot at every pin.  If you aren't going to remove it from the cams to check, roll the engine onto compression several times, retract the tensioner, and check for tight ones.  Verify the timing before you restart it.







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