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
01wr426

426 is running hot WTF?

4 posts in this topic

I took the wr426 to Taylorville IL riding this saturday and I noticed that the engine was running hot a few times. (boiling in overflow tank) I recently had the autodecomp cam installed and so there was some carb tuning to be done. I dont think the carb could run that lean to run me hot.

Anyhow, how could I determine if there is a problem with the waterpump or radiators? What can be done to improve the cooling of my ride? Is there an aftermarket radiator that is larger or better for keeping my bike cool?

How about a high volume waterpump?

It was about 80-85 degrees Saturday when I was riding. I didnt think that was too hot to ride.

What are your thoughts?

Thanks, Eric

Share this post


Link to post
Share on other sites

My 426 used to puke water too. I added that Water Wetter crap I think it's called (pink stuff) Haven't had any issues since. I have spoke to some guy on the trail before and he suggested using a KX80 or KX100 radiator cap if it continued. Something about it being higher pressure :D

Try water wetter and you should be good :D

Share this post


Link to post
Share on other sites

Do not under estimate how your jetting effects how hot your engine gets.

If youe bike is lean and you put lots of load on the engine (sand riding) you will boil it in

no time.

I think larger radiators would be a good thing on the WR4xx's, as would be thermo fans.

Share this post


Link to post
Share on other sites

My yz used to boil over everytime I would stop and idle for more than a min at elmirage lake bed in cali (90-110 temp). I add the ENGINE ICE coolant wich is suppose to drop temps down 30 - 50 degrees, IT WORKED, :D NEVER BOILED OVER AGAIN, SO NOW i USE IT IN ALL MY ATV'S

01' WR426

DEE

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