Join Date: 09-24-2012
Location: HOCKEYTOWN ® MI
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Re: Help! Radiator overheating, 1 fan not working
Just to clarify, what do you mean by "major service" exactly? Are we talking about an oil change, sparkplug change, coolant drain/fill, brake bleeding, etc or another maintenance procedure (valve check)?
Did a shop perform the work or did you tear into the bike yourself?
Chances are pretty good that it is NOT a coincidence that your right side fan stopped working after the recent service (something was likely overlooked - could be something simple such as an unplugged wire harness/connection, etc).
IIRC, the workshop manual should indicate what temperatures the fans activate at - is it possible you are not reaching the threshold for the 2nd fan turning on?
Not sure if both fans turn on at a certain temp or if they are "stepped" and the 2nd fan only turns on at a higher temperature (at least I thought that was how my '11 blade's cooling system functioned - I could be off on that part though).
G'luck troubleshooting !
-'02 Silver/Black CBR 954RR
-'06 Black/Metallic Gray RC-51
-'11 Graphite Black CBR 1000RR (sold)
-'08 Pearl Orange CBR 600RR (sold)