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
Romano

WR426 Piston Rod

6 posts in this topic

During a recent desert ride, the rod on my 2001 WR426 broke and put a hole in my crankcase. Needless to say, my bike now needs a lot of work. I am not mechanically inclined enough to do the work myself, but I would like to upgrade the internal parts when I have the motor rebuilt to try and avoid this from happening again in the future. I am looking for sugesstions from anyone who might know if there are any aftermarket rod manufacturers who make a rod for this bike that is stronger than a stock Yamaha rod. Also if you have any suggestions for pistons, bearings, clutches, etc. I am going to completely have the motor re-done, and I am hoping to make it more reliable than a stock engine.

I am not very competent at navigating these on-line discussion forums, if it is possible for you to email your suggestions to me at tony@aeri.com, I would appreciate it.

Thanks, Tony

Share this post


Link to post
Share on other sites

Carrillo does NOT make a rod for the 426. They said there is no way to get their rod to physically fit in the cases. I would say the best way to defend against a broken rod is to replace your crank/rod. But how often? :)

Share this post


Link to post
Share on other sites

Falicon makes a rod that will work in the 426.

Ask them to install a stroker cr-f rod onto your crank.

It is .060" longer than the 426 rod so you will have to shim your deck height with base gaskets.

The Falicon rod is also bushed on the small end with an Ampco 45 bushing.

Share this post


Link to post
Share on other sites

Falicon makes a rod that will work in the 426.

Ask them to install a stroker cr-f rod onto your crank.

It is .060" longer than the 426 rod so you will have to shim your deck height with base gaskets.

The Falicon rod is also bushed on the small end with an Ampco 45 bushing.

Good info., so the Falicon rod has the standard 426 piston pin size also?

Also, is the YFZ Quad rod stronger and will it fit? I know the piston pin is larger.

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