Not sure if fan turning on Gl1100


Information and questions on GL1100 Goldwings (1980-1983)
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shevik
Posts: 48
Joined: Sat Sep 28, 2019 2:08 am
Location: Phoenix, Az
Motorcycle: 1982 GL1100i

Not sure if fan turning on Gl1100

Post by shevik » Sat Jan 04, 2020 5:32 pm



Hello everyone,

I'm a pretty new rider and I've been enjoying fixing up an old 82gl1100. I've noticed while riding that my radiator fan doesn't seem ever to turn on. However I haven't yet road long enough or hard enough to pass the half way mark on the temp guage.

I could use some advice on how to test the fan and check to see what's wrong with it.

Thanks everyone!


If I just work hard enough I should be able to get her out and about before riding season is over.

winguyjo
Posts: 207
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81 gl1100i frame / 82 gl1100a engine/ 81cb900 odds & ends; resurrection complete. it's naked. SOLD. i am now wingless ... got a gl1100 project for sale ?

Re: Not sure if fan turning on Gl1100

Post by winguyjo » Sat Jan 04, 2020 8:53 pm

all 3 of my gl1100s seemed to kick in when the gauge was at almost exactly halfway.
try running it in your driveway until it kicks in. if the gauge creeps up significantly beyond the halfway mark and the fan still hasn't kicked in, disconnect the fan connector and apply 12v and ground directly to it (let things cool off first).

User avatar
newday777
Posts: 1376
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH summer/fall & Oceanside, CA winters(N San Diego) with lots of miles riden between
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry 36,000 miles

1975 CB750 K5 Planet Blue 7,800 miles

1976 CB750 K6 Anterris Red 25,000 miles

Past rides
1999A Restored from PO neglect & sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: Not sure if fan turning on Gl1100

Post by newday777 » Mon Jan 06, 2020 1:43 pm

Have you opened the radiator cap and topped off the antifreeze in the radiator??? If the level is low below the sensor the fans won't come on.

The fans don't usually come on until it is about 5/8 on the gauge, not 1/2.

User avatar
newday777
Posts: 1376
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH summer/fall & Oceanside, CA winters(N San Diego) with lots of miles riden between
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry 36,000 miles

1975 CB750 K5 Planet Blue 7,800 miles

1976 CB750 K6 Anterris Red 25,000 miles

Past rides
1999A Restored from PO neglect & sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: Not sure if fan turning on Gl1100

Post by newday777 » Mon Jan 06, 2020 1:44 pm

Does the fan come on while idling?

User avatar
shevik
Posts: 48
Joined: Sat Sep 28, 2019 2:08 am
Location: Phoenix, Az
Motorcycle: 1982 GL1100i

Re: Not sure if fan turning on Gl1100

Post by shevik » Tue Jan 07, 2020 2:38 pm

Thanks for the advice guys! I'm gonna run some tests on my next day off. I'll post an update when ready.


If I just work hard enough I should be able to get her out and about before riding season is over.

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