HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
derbybrit1

Engine Differences YZ450F 2006-2009

3 posts in this topic

I've looked at the fiche quite a bit, and as expected there are superceded part numbers every year.  The general assumption can be made that 'newer is better', but that is not true simply on the basis of a changed part number. 

 

Case in point:  The engine cases have different part numbers for 2006-2007 (2S2-15100-01-00), 2008 (2S2-15100-20-00), 2009 (2S2-15100-21-00).  Is there really any difference between them either from a performance, or internal parts interchangeability perspective?

 

Also the transmissions have quite a few changes in gear and shaft part numbers, but parts appear to be functionally interchangeable, including gear, shafts, shift forks, etc.

Could you throw multiple year trans parts into a box and select the needed parts at random and they would fit and work properly?

 

Thanks for sharing what you know.

Share this post


Link to post
Share on other sites

I know that the 09 has more stator bolts. 4 instead of three I believe. That could be the difference in the cases.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0