right rad heats before left


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pokey55
Posts: 11
Joined: Sat Jul 30, 2016 9:33 pm
Location: saxonburg pa usa
Motorcycle: 2008 gl1800p

right rad heats before left

Post by pokey55 » Mon Apr 16, 2018 11:17 pm



08 gl1800p have noticed that the right radiator heats up before the left. after about 3 miles the left radiator will start blowing hot air. started to notice this after I changed antifreeze at about 51K. have 58K on it now, everything else seems normal



csharon1
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Location: Southaven, MS
Motorcycle: Honda Gold Wing 1800, Honda VTX1300

Re: right rad heats before left

Post by csharon1 » Wed Apr 18, 2018 6:30 pm

new to 1800s but is it possible like a car, each radiator has a thermostat? and one is just staying closed longer? Like I said i'm new to Gold Wings, but that would be my guess.

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keithg64
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Re: right rad heats before left

Post by keithg64 » Wed Apr 18, 2018 6:41 pm

I'm not sure but I too am new tobtge 1800. Although I believe there is only one thermostat.
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pokey55
Posts: 11
Joined: Sat Jul 30, 2016 9:33 pm
Location: saxonburg pa usa
Motorcycle: 2008 gl1800p

Re: right rad heats before left

Post by pokey55 » Wed Apr 18, 2018 8:46 pm

I do believe there is only one thermostat,it is even plumbed to pump coolant through both radiators at same time, though at first I had an air pocket, but that should have worked its way out after 7,000 miles. only thing I can think of is a clog ( can't imagine with what? ). maybe I should try a good flush. If anybody has any ideas, would be great

csharon1
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Location: Southaven, MS
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Re: right rad heats before left

Post by csharon1 » Wed Apr 18, 2018 9:40 pm

Diagram is nice, too bad it has no parts labeled.

DaveO430
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Re: right rad heats before left

Post by DaveO430 » Thu Apr 19, 2018 6:28 am

Have you rechecked to be sure the system is full?
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pokey55
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Re: right rad heats before left

Post by pokey55 » Thu Apr 19, 2018 8:06 pm

never check under radiator cap but reservoir is full

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GoldWingrGreg
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Re: right rad heats before left

Post by GoldWingrGreg » Thu Apr 19, 2018 11:13 pm

You will need to check that the system is full ... here is how. To get to the rad. cap, remove the RF pocket. Be sure to check when on a center stand, and when the engine is cold. Add coolant or distilled water as needed. Re-install the rad cap, start and run for 2-3 mins while snapping the throttle several times. Turn off, refill under rad cap as needed. Then restart and allow to run until fans come on. Then add or remove coolant in the reservoir to the large mark towards the top of the dip stick.

If your system is low on coolant, the system and rad. cap should be pressure tested.

pokey55
Posts: 11
Joined: Sat Jul 30, 2016 9:33 pm
Location: saxonburg pa usa
Motorcycle: 2008 gl1800p

Re: right rad heats before left

Post by pokey55 » Fri Apr 20, 2018 8:15 pm

thanks for that goldwinggreg going to have to check that out. will keep you posted



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