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10-25-2009, 06:42 PM
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#1 (permalink) |
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Junior Member
Join Date: Sep 2009
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Can't figure out why my Radiator fan won't kick on
I have done just about everything I can think of and I have no idea what else to do..
I checked the fan fuses, they are good. I had the fan motor replaced..that didn't work...and I even changed out the fan switch..still nothing. What can i possibly be missing? Each time i changed something i'd let the bike run to see if it would actually kick on, but it never did even at 245.. |
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10-25-2009, 07:14 PM
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#2 (permalink) |
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Senior Member
Join Date: May 2008
Last Online: Today 11:43 AM
Location: Duluth, GA
My Ride: 2007 VFR800 RWB (For Sale)
1993 VFR750 (9000 miles)1993 VFR750 (Parts Bike)
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Check for broken or loose wires. Does the fan turn on it you hook it directly to the battery?
Regards, Rollin |
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10-25-2009, 07:23 PM
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#3 (permalink) |
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Uber Guru
Join Date: Jul 2006
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My Ride: '86 VFR 700Fs (3)/ '97 VFR 750F/ '88 NT 650 HAWK (3)/
'86 Yamaha Radian/
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Possibly a bad ground. The fan motor shound be grounded (green wire) to the radiator. Check that the 2 wire plug from fan is attached to wiring harness.
You could try adding an additional wire from chassis to fan shroud or to radiator. You know that touching the black wire to thermoswitch to ground should activate the fan ( key on ).
__________________
" Goin' to Hell in a bucket, but at least I'm enjoyin' the ride....... " "It's no use, mate, the bottom's fallen out......." Last edited by squirrelman; 10-26-2009 at 11:38 AM. |
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10-25-2009, 08:20 PM
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#4 (permalink) |
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Member
Join Date: Feb 2007
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ditto what they said, with pics.
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10-26-2009, 01:18 AM
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#6 (permalink) |
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Senior Member
Join Date: Feb 2009
Last Online: Today 11:37 AM
Location: Key West Florida
My Ride: 2007 Honda VFR800 .... 1993 CB750 NightHawk
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how about the relay?
__________________
+ ZG ST, Heli's, Fender Eliminator, Throttlemeisser, Triangle Flip+Preload, BMC Filter. 200*Fan Switch, VTR Fan Blade - Snorkel, Flapper, Velocity Stacks. Pair Valves, and Evap Canister. Rounded off Entries to Throttle Bodies Motad Header and Two Brothers Exhaust Fully heat wrapped and sealed in high temp black Power Commander 3 USB & O2 Eliminators Custom Tune Done By AMR SUPERBIKES 
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10-26-2009, 10:59 AM
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#7 (permalink) |
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Uber Guru
Join Date: Jul 2006
Last Online: Yesterday 10:58 PM
Location: barf-a-load, ny
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My Ride: '86 VFR 700Fs (3)/ '97 VFR 750F/ '88 NT 650 HAWK (3)/
'86 Yamaha Radian/
'66 Yamaha YL-1/
'88 VTR 250 (2)/
'73 CB 125
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Posts: 1,876
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Thanked 145 Times in 132 Posts
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relay??
no relay really.
__________________
" Goin' to Hell in a bucket, but at least I'm enjoyin' the ride....... " "It's no use, mate, the bottom's fallen out......." |
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10-26-2009, 11:14 AM
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#8 (permalink) |
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Local shrink
Join Date: Sep 2008
Last Online: Today 12:46 PM
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Did you check to make sure the shroud around the fan is not bent and jamming the blades stopping it from rotating(it happened to me)?
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