Remove rad for valve inspection WR400?

5 replies to this topic
  • kayloe

Posted October 13, 2008 - 03:40 AM


Guys, Maual states to remove rad for valve clearances, can it be done without draining coolant and removing rad?

Thanks Rob

  • yz-dwg

Posted October 13, 2008 - 08:33 AM


dont have to on an "06 but the manual doesnt say to

  • MarshalGiles

Posted October 13, 2008 - 10:56 AM


No, you don't have to remove the rads on a WR400 to access your cams. I can't imagine why the manual would tell you it was necessary.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • matt4x4

Posted October 14, 2008 - 03:49 AM


No need - even to get the right exhaust bucket off when checking shim sizes or replacing shims - at worst, you might have to unbolt the cable from the lever assy so you can turn the lever assy half a turn to access the bucket under it.
I would recommend removing the upper engine mount - it makes access easier.

  • grayracer513

Posted October 14, 2008 - 08:56 AM


They tell you it's necessary on pre'03 models because if the right exhaust valve clearance needs to be adjusted, the decomp shaft has to be removed. The truth is that most of the time you can get the shaft pulled back out far enough to do the job without removing the radiator.

  • kayloe

Posted October 14, 2008 - 10:52 AM


thanks guys, saved me some time and hassle.



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.