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Should I buy the silcate free Prestone? where do you drain the fluid from and refill? Thanks
 

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Yes on the Prestone, although I went to a Honda car dealer and got their premixed.

Sorry, don't know where the drain is on a 1500, others will:)

Chuck
 

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You can drain the coolant tru the drain bolt located beneath the water pump and refill tru the filler neck near the top right fairing cover.
 

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Rahim wrote:
You can drain the coolant tru the drain bolt located beneath the water pump and refill tru the filler neck near the top right fairing cover.
As Rahim say's but be aware that sometimes debris gets caught in the small drain hole and requires a little prodding to unclog. When this happens I use an ice pick to dislodge. Good luck!
 

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I plan on flushing and changing the anti-freeze in mine, flushing with the distilled water described from a link here.
 

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Bikefix wrote:
Rahim wrote:
You can drain the coolant tru the drain bolt located beneath the water pump and refill tru the filler neck near the top right fairing cover.
As Rahim say's but be aware that sometimes debris gets caught in the small drain hole and requires a little prodding to unclog. When this happens I use an ice pick to dislodge. Good luck!
Bikefix, He is asking about a GL1500 Gold Wing. The symptom you describe "about the drain hole" only happens with the GL1800's.
 

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DBohrer wrote:
Bikefix wrote:
Rahim wrote:
You can drain the coolant tru the drain bolt located beneath the water pump and refill tru the filler neck near the top right fairing cover.
As Rahim say's but be aware that sometimes debris gets caught in the small drain hole and requires a little prodding to unclog. When this happens I use an ice pick to dislodge. Good luck!
Bikefix, He is asking about a GL1500 Gold Wing. The symptom you describe "about the drain hole" only happens with the GL1800's.

I was refering to my prior 1993 GL1500A and My Valk not my 1800 which has less than 5000 miles on the clock.
 

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Be careful, when changing antifreeze it is easy to get an air pocket when re-filling which will cause over heating, it happened to me but I caught it in time


GOD Bless,
jerry
 

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Bikefix wrote:
DBohrer wrote:
Bikefix wrote:
Rahim wrote:
You can drain the coolant tru the drain bolt located beneath the water pump and refill tru the filler neck near the top right fairing cover.
As Rahim say's but be aware that sometimes debris gets caught in the small drain hole and requires a little prodding to unclog. When this happens I use an ice pick to dislodge. Good luck!
Bikefix, He is asking about a GL1500 Gold Wing. The symptom you describe "about the drain hole" only happens with the GL1800's.

I was refering to my prior 1993 GL1500A and My Valk not my 1800 which has less than 5000 miles on the clock.


Been wrenching on GL1500's for 17 years, never know it to happen. But it occasionally happens on the GL1800's. Yeah, we work on both...!

Guess you broke "new ground".
 

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jar wrote:
Be careful, when changing antifreeze it is easy to get an air pocket when re-filling which will cause over heating, it happened to me but I caught it in time


GOD Bless,
jerry
Other than overheating, how do you know if you havean air pocket (no beans!)and what can a person do to keep from getting one?

Thanks,



Dave
 

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bamadave wrote:
jar wrote:
Other than overheating, how do you know if you havean air pocket (no beans!)and what can a person do to keep from getting one?

Thanks,



Dave
When radiators been refilled,dont refit rad cap,start engine you will see air bubbles at refill hole.When bubbles have stopped top up rad then refit cap.take care as coolant and engine will be hot:shock:.
 

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Is it a good idea to use a radiator cleaner before draining? That is, putting a commercial radiator flush solution into the radiator and running a bit before draining the old fluid? Or is it generally not necessary. I have 1994 GL1500 with 90K miles I just got.
Thanks.
 

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jar wrote:
Be careful, when changing antifreeze it is easy to get an air pocket when re-filling which will cause over heating, it happened to me but I caught it in time


GOD Bless,
jerry

on the older wings (an who knows maybe newer as well) the thermostat has a little hole in the top, if you change it, or check it, you need to make sure that hole is located on the top, or you will get a bubble behind the thermostat and it will not circulate.



always a good idea to fill, leave the cap off, run until it warms up allowing the burps to come out, refill will still running and then put the cap on



as for "flushing"... really depends on whether you know how it was manitained.... if you do flush it, be sure to run clear disstilled water multiple times heating and cooling off to remove all the flush chemicals
 

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Discussion Starter · #14 ·
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thanks all!! Now I got to find these parts. The owners manual that came with it is a JOKE! It just says "go to the dealer."
 

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should you do this while motor is hot or does it matter? again thanks. pics/diagrams of said place on bike would be great.
 

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:)Draining coolant do when engines cold so you dont burn fingers:shock:.Drain plug is front bottom engine on water pump.Remove top inner fairing covers,righthand one will reveal rad filler cap.take cap off before removing drain plug to allow coolant to drain.If engines done lots of miles and rad looks clogy replace drain plug and run a rad flush through;)



AL
 

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big al59 wrote:
:)Draining coolant do when engines cold so you dont burn fingers:shock:.Drain plug is front bottom engine on water pump.Remove top inner fairing covers,righthand one will reveal rad filler cap.take cap off before removing drain plug to allow coolant to drain.If engines done lots of miles and rad looks clogy replace drain plug and run a rad flush through;)



AL
I always remove the drain bolt first then remove the radiator cap. Using this method, I don't have coolant rushing out the drain hole when I remove the drain bolt. Not that it's better, just my way of doing it.
 

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Left side on my 93 Interstate.
 
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