Frame Rail Coolant Overflow For CRF 450

raabit · #1 11-30-2004, 04:05 PM

Just some info...I was looking for some information on overheating issues with the CRF 450 when I saw some pictures that were posted by a member on this site. Very clean installation by the way. Anyways, just wanted to let know whoever is concerned, that this modification cannot be done with the 05 CRF 450. Unfortunatly, I had the holes drilled and tapped before I found out that the frame downtube is not closed off at the bottom when the frame rails begin. A great mod for pre 05 machines, clean and out of the way. O-well. I believe that the CRF450x will have a coolant return bottle just like the 250x, so that might be the way to go for 05 model owners.

Mike

FFRacing11x · #2 11-30-2004, 04:07 PM

That was the only drawback to the mod...once the motor cooled off, it could not reclaim the coolant lost. Motion Pro makes a nice "surge bottle" that mounts just about anywhere that will allow the cooling system to reclaim any lost coolant when it needs it. Tdub

Similar Threads for: Frame Rail Coolant Overflow For CRF 450
Thread	Thread Starter	Forum	Replies	Last Post
coolant coming out overflow	03cr125	2-Stroke Motorcycles - Honda	7	02-22-2005 09:17 PM
Frame Guards for 04 450?	ScottYZF426FLA	4-Stroke Motorcycles - Yamaha	2	09-14-2004 02:57 PM
450 motor in a 426 frame???	bluebyu	4-Stroke Motorcycles - Yamaha	8	03-19-2004 11:46 PM
Coolant overflow bottle	MATTXR250R	General Discussion	8	12-31-2003 12:14 PM
CRF Coolant in the frame mod	NorCalMX	4-Stroke Motorcycle Knowledge Base	15	09-16-2003 09:53 PM