Radiator Fan? - Honda Shadow Forums : Shadow Motorcycle Forum

holtnepenthe · 10-30-2008, 06:36 PM

The other day my wife and I decided to go for a little ride. It seems as though the fan was coming on and off quite frequently. What does this indicate? Is it because I was riding two up, and usually don't? I haven't had it come on that frequent since then however. Just want to make sure the thermostat is okay, and whatnot. Thank you!

bigpigtx · 10-30-2008, 07:48 PM

Do you mean the thermostat or the fan switch?

You were probably running hot and this is normal. The first thing I'd do is check your coolant level at the radiator (not the reserve). Might not be a bad idea to flush it if you can't remember the last time you did. Make sure if you do that you bleed air out of the system by letting the engine warm up, snapping the throttle a few times, and then topping off the radiator.

If you want to check your thermostat you can remove it and put it in a pot of water on the stove. (hang it from a string so it doesn't touch the pot). It should start to open at 176 to 183 degrees and be fully open at 203 degrees.

You can do the same thing with the fan switch if you have an ohm meter. I'm not real familiar with that.

Somewhere on here I found a link to the Haynes manual in a .pdf file. Anyone have it?

SHADOW 1100T · 10-31-2008, 02:35 AM

If a thermostat goes bad it will stick open or at least there designed too and if it stuck closed you would know it, like it was mentioned check coolent levels and of course the fact that your rideing around 2 up in 90 deg weather might have something to do with it

spark949 · 10-31-2008, 08:24 AM

Quote:

Originally Posted by SHADOW 1100T

If a thermostat goes bad it will stick open or at least there designed too and if it stuck closed you would know it, like it was mentioned check coolent levels and of course the fact that your rideing around 2 up in 90 deg weather might have something to do with it

90 degree weather....what's that?

SHADOW 1100T · 10-31-2008, 10:33 AM

90 degree weather....what's that?
============================
Something I had 3 1/2 months ago for 3 weeks,,,,IIRC, today 30 deg's with a Hi of 57 deg's.

holtnepenthe · 10-31-2008, 06:24 PM

Yeah, it gets pretty warm here. But hey, at least I'll be cruising around all winter long! Come and visit Arizona, and we can ride all year!

SHADOW 1100T · 10-31-2008, 08:02 PM

I can't, my neighbor went to Az. and he plowed the snow out of my driveway,,,,,,,,and now I gotta do it SA

10-30-2008, 06:36 PM	#1 (permalink)
holtnepenthe Senior Member Join Date: Aug 2008 Location: Phoenix, AZ Posts: 354	Radiator Fan? The other day my wife and I decided to go for a little ride. It seems as though the fan was coming on and off quite frequently. What does this indicate? Is it because I was riding two up, and usually don't? I haven't had it come on that frequent since then however. Just want to make sure the thermostat is okay, and whatnot. Thank you! __________________ Christopher Az Rider 81' GL1100 Standard 03' Sabre 1100C2 04' Goldwing GL1800 ABS

10-30-2008, 07:48 PM	#2 (permalink)
bigpigtx Senior Member Join Date: Oct 2008 Location: Waco, Tx Posts: 167	Do you mean the thermostat or the fan switch? You were probably running hot and this is normal. The first thing I'd do is check your coolant level at the radiator (not the reserve). Might not be a bad idea to flush it if you can't remember the last time you did. Make sure if you do that you bleed air out of the system by letting the engine warm up, snapping the throttle a few times, and then topping off the radiator. If you want to check your thermostat you can remove it and put it in a pot of water on the stove. (hang it from a string so it doesn't touch the pot). It should start to open at 176 to 183 degrees and be fully open at 203 degrees. You can do the same thing with the fan switch if you have an ohm meter. I'm not real familiar with that. Somewhere on here I found a link to the Haynes manual in a .pdf file. Anyone have it? __________________ '97 Shadow ACE VT1100C2V

10-31-2008, 02:35 AM	#3 (permalink)
SHADOW 1100T Senior Member Join Date: May 2007 Location: LEAVENWORTH WASHINGTON Posts: 5,303	If a thermostat goes bad it will stick open or at least there designed too and if it stuck closed you would know it, like it was mentioned check coolent levels and of course the fact that your rideing around 2 up in 90 deg weather might have something to do with it __________________ Ted

10-31-2008, 10:33 AM	#5 (permalink)
SHADOW 1100T Senior Member Join Date: May 2007 Location: LEAVENWORTH WASHINGTON Posts: 5,303	90 degree weather....what's that? ============================ Something I had 3 1/2 months ago for 3 weeks,,,,IIRC, today 30 deg's with a Hi of 57 deg's. __________________ Ted

10-31-2008, 06:24 PM	#6 (permalink)
holtnepenthe Senior Member Join Date: Aug 2008 Location: Phoenix, AZ Posts: 354	Yeah, it gets pretty warm here. But hey, at least I'll be cruising around all winter long! Come and visit Arizona, and we can ride all year! __________________ Christopher Az Rider 81' GL1100 Standard 03' Sabre 1100C2 04' Goldwing GL1800 ABS

10-31-2008, 08:02 PM	#7 (permalink)
SHADOW 1100T Senior Member Join Date: May 2007 Location: LEAVENWORTH WASHINGTON Posts: 5,303	I can't, my neighbor went to Az. and he plowed the snow out of my driveway,,,,,,,,and now I gotta do it SA __________________ Ted

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