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Related Garage

07 Yamaha YZ450F1.jpg

Yamaha YZ450F (2007)

Owner: jamiehughes
Added on Yesterday, 09:37 AM
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2014 YZ450 Trans.

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4 replies to this topic
  • girtbike

    TT Newbie

7 posts
Location: Indiana

Posted August 19, 2016 - 02:43 AM

I just bought a 14 450f off a friend of mine. The rod broke in half between the piston and the crank. basically trashing the motor. Parts are here for the rebuild, but I was reading about a bearing in the tranny for the shifter. Does anyone know which bearing I need to order?  Or the Part number.


Also since I'm going for the complete rebuild, any other mods or suggestions?



  • grayracer513
42,673 posts
Location: California
Garage View Garage

Posted August 19, 2016 - 06:57 AM

You're probably referring to the "stopper lever" (item 4)  PN 1SL-18140-01-00.


Only a few of them have failed. 



  • olgus69

    TT Member

42 posts
Location: Australia

Posted August 19, 2016 - 03:11 PM

gray racer I am fairly new to yz450 world but yo my friend are very valuable to this forum. Great stuff. :thumbsup:  :thumbsup:  :thumbsup:  :thumbsup:  :thumbsup:

  • Dklassen

    TT Gold Member

1,037 posts
Location: British Columbia
Garage View Garage

Posted August 20, 2016 - 06:53 AM

I uncrated my 14 this past winter and replaced the shift stopper and the impeller with 2016 parts. If you replace the stopper you need a new spring and bolt. I also replaced the front engine mounts from the 15 and had to use the 15 long
bolt that runs through the engine. The smaller stock bolts are fine. Btw what where the hours when the rod failed?

  • girtbike

    TT Newbie

7 posts
Location: Indiana

Posted August 21, 2016 - 11:47 AM

the hours. I would have to see his programmer. But tearing the bike down, it looks to have a lot of hours on it. Of course with any rebuild, I ended up buying a lot more goodies than what it took to rebuild the engine... the new plastic and decals helps the motor run better.

Thanks Gray Racer for the diagram.

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