Cooling Fan not coming on


Information and questions on GL1100 Goldwings (1980-1983)
  • Sponsored Links
drtimm@att.net
Posts: 33
Joined: Tue May 01, 2012 9:46 pm
Location: Lincoln, California
Motorcycle: Honda Goldwing, 2002 GL1800

Cooling Fan not coming on

Postby drtimm@att.net » Wed Sep 25, 2013 1:34 pm



Just replaced my Fan thermoswitch with a new one, on my 85 GL1200. I used a jump wire to bypass the thermoswitch and made sure my wiring to fan and fan were working and they were. After connecting the wire to the thermoswitch and filling radiator I let the bike run on its stand to check the fan if it would come on. It did not and the temp neared the red zone. I drained the radiator and disconnected the wire from the themoswitch and using a jumper wire again bypassed the thermoswitch. The fan came on again.

It would seem to me that I have a new defective thermoswitch. What is the thoughts of you who are experienced machanics? I don't know where to go from here. Help!



User avatar
virgilmobile
Posts: 7660
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Cooling Fan not coming on

Postby virgilmobile » Wed Sep 25, 2013 2:23 pm

Does the "new" thermoswitch have 2 terminal connections like the original or just 1 lug.?

User avatar
Britanicus
Posts: 142
Joined: Thu Aug 12, 2010 12:38 pm
Location: Cambridge, Ontario, Canada
Motorcycle: 1982 GL1100 GoldWing

Re: Cooling Fan not coming on

Postby Britanicus » Thu Sep 26, 2013 6:53 am

It would depend on why you replaced your thermoswitch in the first palce.

My guess is that your fan wasnt turning on and you replaced the switch. Chances are it is your thermostat that is borked.

Easy fix,

mclark38
Posts: 23
Joined: Thu Oct 25, 2012 8:53 pm
Location: Green Bay, Wisconsin
Motorcycle: 1982 GL1100I Interstate

Re: Cooling Fan not coming on

Postby mclark38 » Mon Sep 30, 2013 1:19 pm

I had the same problem, replaced the thermostat and all was well. The honda ones run about $100 but I've seen them on saber cycle for $50

User avatar
littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: Cooling Fan not coming on

Postby littlebeaver » Mon Sep 30, 2013 1:27 pm

It should kick the fan on from Half to 3/4 way up on the gauge, over 3/4 and the switch is probably the fault..

mclark38
Posts: 23
Joined: Thu Oct 25, 2012 8:53 pm
Location: Green Bay, Wisconsin
Motorcycle: 1982 GL1100I Interstate

Re: Cooling Fan not coming on

Postby mclark38 » Mon Sep 30, 2013 1:29 pm

When my old thermostat still worked it kicked in right where the white part on th gauge gets thicker, with the new one its about in the middle now. it takes quite a bit for it to turn on under normal riding

User avatar
WingAdmin
Site Admin
Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Cooling Fan not coming on

Postby WingAdmin » Mon Sep 30, 2013 1:35 pm

mclark38 wrote:I had the same problem, replaced the thermostat and all was well. The honda ones run about $100 but I've seen them on saber cycle for $50


...because it is a cheap Chinese knock-off that will likely fail in short order. Don't buy from Saber Cycle.

User avatar
littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: Cooling Fan not coming on

Postby littlebeaver » Mon Sep 30, 2013 1:37 pm

mclark38 wrote:When my old thermostat still worked it kicked in right where the white part on th gauge gets thicker, with the new one its about in the middle now. it takes quite a bit for it to turn on under normal riding

And on a hot day it will kick on and cycle off, especially sitting in traffic..It's fine.. If that switch kicked on before when it hit the white area, that sucker would run all the time in the hot months, proabaly never kicking off..Your good at half way...Once you get rolling it should go back down.. If you see it over 3/4 and heading for the red zone. say old sh-t.. Stop the bike, your heads are at risk from warping from heats....Probably has to stay up there for a while before that happens ...But it happens..
Last edited by littlebeaver on Mon Sep 30, 2013 1:40 pm, edited 1 time in total.

mclark38
Posts: 23
Joined: Thu Oct 25, 2012 8:53 pm
Location: Green Bay, Wisconsin
Motorcycle: 1982 GL1100I Interstate

Re: Cooling Fan not coming on

Postby mclark38 » Mon Sep 30, 2013 1:39 pm

WingAdmin wrote:
mclark38 wrote:I had the same problem, replaced the thermostat and all was well. The honda ones run about $100 but I've seen them on saber cycle for $50


...because it is a cheap Chinese knock-off that will likely fail in short order. Don't buy from Saber Cycle.


My dads been buying stuff from saber for all of his bikes since they came around, never had a problem with anything from them yet

mclark38
Posts: 23
Joined: Thu Oct 25, 2012 8:53 pm
Location: Green Bay, Wisconsin
Motorcycle: 1982 GL1100I Interstate

Re: Cooling Fan not coming on

Postby mclark38 » Mon Sep 30, 2013 1:41 pm

littlebeaver wrote:
mclark38 wrote:When my old thermostat still worked it kicked in right where the white part on th gauge gets thicker, with the new one its about in the middle now. it takes quite a bit for it to turn on under normal riding

And on a hot day it will kick on and cycle off, especially sitting in traffic..It's fine.. If that switch kicked on before when it hit the white area, that sucker would run all the time in the hot months, proabaly never kicking off..Your good at half way...Once you get rolling it should go back down..


It did run basically all the time, even on the mornings when its 25 degrees sometimes. The new one I have to sit in traffic for atleast 5 minutes before it gets hot enough for it. Atleast I know the fan motor won't be dying anytime soon now :D

User avatar
littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: Cooling Fan not coming on

Postby littlebeaver » Mon Sep 30, 2013 1:43 pm

mclark38 wrote:
WingAdmin wrote:
mclark38 wrote:I had the same problem, replaced the thermostat and all was well. The honda ones run about $100 but I've seen them on saber cycle for $50


...because it is a cheap Chinese knock-off that will likely fail in short order. Don't buy from Saber Cycle.


My dads been buying stuff from saber for all of his bikes since they came around, never had a problem with anything from them yet

Do as you feel fit...Advice was given.. :D

User avatar
littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: Cooling Fan not coming on

Postby littlebeaver » Mon Sep 30, 2013 1:45 pm

mclark38 wrote:
littlebeaver wrote:
mclark38 wrote:When my old thermostat still worked it kicked in right where the white part on th gauge gets thicker, with the new one its about in the middle now. it takes quite a bit for it to turn on under normal riding

And on a hot day it will kick on and cycle off, especially sitting in traffic..It's fine.. If that switch kicked on before when it hit the white area, that sucker would run all the time in the hot months, proabaly never kicking off..Your good at half way...Once you get rolling it should go back down..


It did run basically all the time, even on the mornings when its 25 degrees sometimes. The new one I have to sit in traffic for atleast 5 minutes before it gets hot enough for it. Atleast I know the fan motor won't be dying anytime soon now :D

Sounds like it's perfect to me...

User avatar
WingAdmin
Site Admin
Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Cooling Fan not coming on

Postby WingAdmin » Mon Sep 30, 2013 8:34 pm

mclark38 wrote:
WingAdmin wrote:
mclark38 wrote:I had the same problem, replaced the thermostat and all was well. The honda ones run about $100 but I've seen them on saber cycle for $50


...because it is a cheap Chinese knock-off that will likely fail in short order. Don't buy from Saber Cycle.


My dads been buying stuff from saber for all of his bikes since they came around, never had a problem with anything from them yet


You're one of the lucky few, then. Read what others have to say: http://goldwingdocs.com/Vendors/Saber-Cycle_880




Return to “GL1100 Information & Questions”




Who is online

Users browsing this forum: Yahoo Slurp [Bot] and 1 guest