Bike running hot


Information and questions on GL1500 Goldwings (1988-2000)
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BearWing
Posts: 1
Joined: Thu Oct 09, 2014 11:42 pm
Location: Lakewood, California
Motorcycle: 1995 GL1500 Goldwing Aspencade

Bike running hot

Postby BearWing » Thu Oct 09, 2014 11:55 pm



My 1995 GL1500 Aspencade has been running hot and I can't seem to locate the problem.
I have replaced the water pump and thermostat, but still runs hot in stop and go traffic, seems to do fine on the freeway when cruising at a constant speed above 60mph. The fans seem to kick on way to late, long after the bike is already hot.
Looking for any suggestions to solve the problem

Thanks



User avatar
702scottc
Posts: 252
Joined: Tue May 15, 2012 12:12 am
Location: Las Vegas, Nevada
Motorcycle: 1980 GL1100 Interstate (sold)
1990 GL1500 Aspencade (sold)
2005 GL1800

Re: Bike running hot

Postby 702scottc » Fri Oct 10, 2014 7:51 am

How high is the temp gauge showing when the fans kick on? Mine come on when the gauge shows half. Is is boiling over hot or just showing higher on the gauge?

User avatar
RBGERSON
Posts: 2625
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: Bike running hot

Postby RBGERSON » Fri Oct 10, 2014 8:20 am

On 1100's there is a separate switch that reads water temp and turns the fans on..same on a 1500?? you haven't said you replaced or test that/ maybe #22 here

http://www.westernhonda.com/fiche_secti ... veh=132035
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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: Bike running hot

Postby WingAdmin » Fri Oct 10, 2014 9:45 am

It does sound like the coolant fan switch may be the issue. It's fairly easy to test - from the service manual:

Coolant fan switch
Coolant fan switch


Remove the fairing front cover.

Disconnect the BLK wire terminal from the thermostatic fan motor switch. Short the BLK wire to ground. Turn the ignition switch to ON. The fan motor should work.

Drain the coolant.

Remove the fan motor switch and a-ring from the left radiator.

Suspend the switch in a pan of coolant (50-50 mixture) and check the temperatures at which the switch opens and closes. Use an electric heating element to heat the coolant.

Make sure that there is no switch continuity at room temperature and gradually raise the coolant temperature.

The switch should have continuity (close) at 98-102° C (208-216° F).

NOTE
• Keep the temperature steady for three minutes before testing continuity. A sudden change of temperature will cause an error in temperature readings between the thermometer and the switch.
• Do not let the thermometer or switch touch the pan as it will cause a false reading.
• Place the switch in coolant up to its threads. Install the thermostatic fan motor switch with a new o-ring and tighten it to the specified torque.

Torque: 28 N-m (2.8 kg-m, 20 ft-Ib)

Rob98801
Posts: 33
Joined: Fri Aug 30, 2013 7:36 pm
Location: Wenatchee,WA
Motorcycle: 1997 GL1500SE

Re: Bike running hot

Postby Rob98801 » Fri Oct 10, 2014 10:19 am

On my 1500se I ran a jumper from one side of the Fan motor switch thru a switch to ground. This last summer on very hot days I could manually turn on the fans as soon as I got in traffic.




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