Radiator fan for XR 650 R ??

4 replies to this topic
  • mauiDRZ

Posted October 27, 2004 - 10:59 PM


Planning on customizing the XR 650R for long distance (TransSiberian Hwy): I understand the bike tends to overheat on hot days at low rate of speed. Is there an aftermarket radiator FAN available anybody has installed? Any other hints, solutions, tricks, suggestions?

Thanks. Any info appreciated.

  • TimBrp

Posted October 28, 2004 - 03:19 AM


If your machine is uncorked(jetting,intake mods), there should be no reason for use of a fan on a highway. Unless of course you plan on alot of traffic. This bike is designed to be held WFO in the desert for long durations. I switch to a high-flo thermostat, higher pressure radiator cap, some engine ice coolant and uncorked her and haven't had the slightest bit of overheating. Even in 95 degree eastern trails she's been flawless. :cry:

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

Posted October 28, 2004 - 11:01 AM


My Dakar 680R has the oversize IMS radiators AND a 12V 4" fan! Fans are available at any auto parts place, bolt it on behind the right side radiator to the CA emissions mount. Its easy. Run a switched 12V line to it. You will need dc but presumably you have a dual sport kit...there are pictures and a template available at the Yahoo XR650 site in the archives...

After 2 years running the high pressure radiator cap i am now back to the stocker. The higher pressures take their toll on the hoses. For Trans Siberia (i have done plenty of long rides in Asia and Africa) I would go with steel braded hose line, stock cap, and for sure a fan. Trans Siberia will leave your bike covered in grime--radiator heat exchange will be affected. Plus there are plenty of days you wont be going that fast-- traffic, road maintenance (always an issue in the far north-where they can only work for a few months a year) not to mention weather. One AL-Can trip i had rain for 11 days straight!!

Another thing to consider is that most oversize fuel tanks for the BRP cut down amount of air flowing through the radiators....

You might want to consider some 12v heated grips (35watts) and an external power source for an MP3 player...or at least a radio. Dont forget to put on a 15 tooth countersprocket...

  • HeadTrauma

Posted October 28, 2004 - 10:37 PM


Something that comes to mind is an item some Toyota MR2 modders use and thats a small SPAL intercooler fan. Its not specifically for intercoolers, but the MR2 is mid-engine and has lousy airflow in the engine compartment. I think you can get them down to 4 or 6".

  • BWB63

Posted October 29, 2004 - 07:58 AM


If you really need a fan for your Oinker look at this page:
Fan For The BRP Click Here
It was done for slow clrawling stuff. A more durable fan would be wanted but, this page is real good for the bracket and such.

Related Content


2015 XR650L Squeaking noise by Crayjay

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

Post Apocalypse, ThumperTalk style! by Justin Pearson

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

Supercross Preview 2017 Part 1: Championship Contenders by Chris Cooksey

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  148 replies

Engine Loping/Sputtering by tcaldwell

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

Honda XR650L 2017 by Chris.GVS

Honda XR650L 2017
  • - - - - -
  • 0 reviews

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.