Radiator cap

3 replies to this topic
  • boricua1

Posted September 13, 2011 - 01:38 PM


Do you guys think a 2.0bar cap would crack my stock radiators on my 99 yz 400f? or do u think i should go with a 1.4 or 1.6cap?

  • clutchkowalski

Posted September 13, 2011 - 03:58 PM


2.0 is too far to go. I put a 1.3 on mine along with a good radiator flush even if it looks clean inside, and fresh coolant with a dose of amsoil coolant boost. Now I can ride a slow hot day with some hillclimbing wfo and not lose my coolant.:)

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

Posted September 13, 2011 - 04:14 PM


I just put a 1.6 on mine, I'm happy...


Posted September 17, 2011 - 06:53 PM


Just make sure you bike never sits idling ... if the cap fits no real issue ... its all about temp. if a 2.0 fits ok it will not crack anything!

Related Content


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.