yamaha yz450f valve clearance specifications


2 replies to this topic
  • Mike Hunt 69

Posted March 12, 2008 - 08:00 AM

#1

I need the valve clearance specification for a 2005 yamaha yz450f. it is hard to start so im going to adjust my valves but not sure what to adjust them to. if someone would help me out that would be greatly appreciated. thanks

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted March 12, 2008 - 08:08 AM

#2

Intakes: .10-15mm

Exhausts: .20-.25mm

Download your own manual:

http://www.yamaha-mo...ice/manuals.jsp

It's probably not the valves.. However, if you need to shim any of them more than .10mm, it's time for a valve job. If you doubt this, recheck the valves again after one or two more rides, and you will almost certainly find that that particular valve has already moved out of spec.

  • Mike Hunt 69

Posted March 12, 2008 - 08:10 AM

#3

awesome, thanks alot man





Related Content

Forums
Photo

Snake pit oct 30th by The Anvil


Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies
Forums
Photo

James Stewart back on a YZ450F by YamaLink


Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies
Forums
Photo

YZ450F 03 Sparks driving me crazy by SirAttard


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 replies
Forums
Photo

Is it worth it? (Cam and High compression piston) by macgi77


Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies
Forums
Photo

The "going back to the other darkside" adventure... by Monk


Dirt Bike   Make / Model Specific   KTM   250/350/450/505 SX-F & XC-F (4-Strokes)
  • Hot  94 replies
 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.