Max Temp 650R

4 replies to this topic
  • glabudde

Posted March 12, 2007 - 09:01 PM


Installed a Vapor on bike and can now monitor temp. When riding in N. Cal. during winter (45 to 70F) typically runs around 160 to 175F. When idiling and crawling through rocks for aboue five minutes it rose to 270F before I took it for a ride to cool off before shutting down. What is considered safe? :applause:

  • bigtooth

Posted March 13, 2007 - 05:02 AM


I just bought an R and I'm curious about this also. I have the directions to install a cooling fan on the radiator. Has anyone done this and does it help out at all?

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

Posted March 13, 2007 - 05:25 AM


I'd say 270 is too high. I do some automotive testing, and the big OEMs typically spec their max coolant temp at about 250.

Since you live in California and freezing isn't an issue consider changing to a mix of 70% water/30% antifreeze; it helps to transfer heat out of the engine faster.

  • sanjoh

Posted March 13, 2007 - 05:30 AM


Vapor on my XRR has recorder max at 239 in central FL heat at slow speed in tight woods.

  • Hendi

Posted March 14, 2007 - 11:18 AM


I own the vapor too and I have notice that the water temp is not accurate, I had some reading over 400F , a bit too high for water ??, its a good computer but I don't trust its accuracy as far as water temp, I order a fan for my XR but don't know if that will make a big change.


Related Content


Post Apocalypse, ThumperTalk style! by Justin Pearson

Dirt Bike   General Dirt Bike Forums   General Dirt Bike Discussion
  • Hot  35 replies

Honda XR650L 2016 by Chris.GVS

Honda XR650L 2016
  • - - - - -
  • 0 reviews
Want to add a kickstart to your XR650L?  Here's how - last post by clc3251

Want to add a kickstart to your XR650L? Here's how

  • 1 reply

2015 XR650L Squeaking noise by Crayjay

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • 3 replies

ignitech programmable XR650L CDI by brianhare

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • Hot  60 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.