New WR426 Owner. Question...

4 replies to this topic
  • boarder82

Posted October 20, 2009 - 09:48 AM


I recently bought a 2001 wr426f. After a few short rides, I noticed that coolant was leaking through a hose that ran down through the swing arm near the rear shock. Is this an overflow of some sort? I don't think that the bike was running hot, because it would leak out after short rides. Is this normal. Please help me out as I am new to the dirt biking world. Thanks in advance.

  • GCannon

Posted October 20, 2009 - 09:50 AM


Is the coolant reservoir under the rear fender on the left Full of coolant? Is the reservoir intact?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • boarder82

Posted October 20, 2009 - 10:15 AM


Yes, the coolant resevoir is full and it is intact. However, I did notice very small drip coming from near the resevoir cap running down the resevoir.

  • maxtherat

Posted October 20, 2009 - 04:21 PM


If there was enough coolant for it to expand up to the cap then it is too full. Lower it to the full mark or even lower with the engine COLD.

  • jcjrestreoi

Posted December 28, 2009 - 12:28 PM


Is the coolant reservoir under the rear fender on the left Full of coolant? Is the reservoir intact?

i´m new whit my WR450F, i was riding thru the hill, and suddenly my bike was boiling coolant and leaking "coolant steam" thru black hose,
minutes later there was no coolant in the catch boottle but there was in the radiator....

also, when the engine is to hot, i listen how the coolant boilt into the engine.. what should i do????

what is the problemm????
my bike is 30 hours(New!!), i have changed the oil filter and oil...


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.