Sign in to follow this  
Followers 0
300lbsgorilla

issue with third gear

5 posts in this topic

2004 WR450f with the motor basically stock.

 

I was out ridding today and suddenly I had a problem with third gear.  I can shift easy into and out of third gear.  It stays in gear until I put a bit of power to it and then it feels like it just goes to neutral.  Then when I let off the power it catches again.  It only happens in third gear.  It is not the rear slipping or the clutch as I can nail it in any other gear and no slipping. With the motor off putting it into third and rolling it turns the motor over so there is some engagement.

 

Any ideas what this could be?  Is there any chance of fixing it without splitting the case?

Share this post


Link to post
Share on other sites

Most likely cause is broken dogs on the gear (that get it pushed into place), especially if it's only one gear that is a problem

 

Next would be the shift paw and drum, which can get messed up if you fall on the shifter side

 

There are parts on the opposite end of the shift shaft that have been known to fail

 

 

 

http://www.bikebandit.com/oem-parts/2008-yamaha-wr450f-wr450fx/o/m144786#sch542567

Share this post


Link to post
Share on other sites

Well I was HOPING it would be something simpler.  But sounds like the case needs to be split to fix it. How long would it take, neglecting time to acquire parts, to pull the motor split it, go through it and get it back together?  I am no slouch with a wrench but I do have a day job..  Once I get it out and open I am sure there will be other things that I need to do while it is on the bench.  Seems like a lot of work for an 11 year old dirt bike.  Trying to figure out if the cost and time would be worth it to me.

Share this post


Link to post
Share on other sites

Well I fixed it.  Strange thing, some how fixing a transmission turned the bike orange and black.  

 

 

Thanks for all the help everyone.

IMAG0714_1.jpg

1 person likes this

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