Help with a yz426f overheating

24 replies to this topic
  • bluemotorcyclesam

Posted April 06, 2010 - 12:01 PM


Excuse my newbness.....Why not?

  • grayracer513

Posted April 06, 2010 - 12:07 PM


Because I can't see anything inside the radiator.

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

Posted April 06, 2010 - 12:35 PM


Try this one Gray

  • Gunner354

Posted April 06, 2010 - 03:13 PM


It's probably empty.

Keep moving, idle facing into a 10 mph wind, or use a battery powered fan.

There is a very simple solution to this.
Go to and check out the NPG-R. The thing that makes it different from all other coolants is that it is waterless. It was designed origially for big rig diesel trucks. The boiling point is in the 400* range thus making it nearly impossible to boil over.
I use this in all my bikes, quads and even my Powerstroke truck. The dirtbike uses the stock radiator cap but in my Powerstroke you actually drill a very small hole in the cap and run zero pressure. Seems odd, but I have pulled our 5th wheel loaded over the grapevine and Tehachapi in southern California.
Don't get caught up in the silly overflow bottle or fan games.
Just change out to Evans and be done with it.

  • canute

Posted April 07, 2010 - 02:43 PM


This explains a great solution that has worked wonders for my 400
"Turkey Baster" - try this link, it has additional Thumpertalk links and some pics. completed for less than $7 :thumbsup:

http://www.thumperta...rkey baster mod

Related Content


Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies

Should I buy this bike? help....... by Numsa Hul

Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • * * * * *
  • 10 replies

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

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.