gl1500 sub air filter


Information and questions on GL1500 Goldwings (1988-2000)
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papa47
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Location: Syracuse, NY
Motorcycle: 1991 GL1500A

gl1500 sub air filter

Postby papa47 » Fri Mar 14, 2014 7:41 pm



I've read that many people don't know, including mechanics, about this element. Does anyone have the how-to, on getting to it and changing the element. I've heard that by the time most people get to it , it implodes? thnx.



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ct1500
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Re: gl1500 sub air filter

Postby ct1500 » Fri Mar 14, 2014 9:02 pm

Scott has done the how to here

viewtopic.php?f=14&t=11036

The sub might last 10 yrs which is why the dealer mechanics who work at the dealerships that do not service anything beyond that age wouldn't think twice about it.
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2manywings
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Re: gl1500 sub air filter

Postby 2manywings » Sun Mar 16, 2014 9:56 am

The body panel that holds the air suspension controls has to be removed. Once that's out of the way, you'll find a rubber hose that runs directly under the air vent duct that exits that panel. That rubber hose goes to a little rectangular black plastic box that is fastened to the frame with one 10mm head bolt just to the left of the duct. The sub-air filter is encased in that black box. The filter is just a thin piece of foam rubber that deteriorates over time. I've gone to the local lawn and garden store and bought a pre-air filter used on many lawn tractors and cut my own. It's only about 1"x2", so you can cut several of them out of one of these pre-filters. Most dealers don't stock this item, and most won't even know what in the world your talking about or know where to find it in a parts breakdown. So sometimes you have to improvise. Good Luck !

Dogsled
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Re: gl1500 sub air filter

Postby Dogsled » Sun Mar 16, 2014 10:45 am

They're hard to find fer sure, I changed that and the cruise control filter. Neither one was really dirty.
"Fight until hell freezes over, then fight on the ice"

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The Wolf
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1995 1500 Aspencade

Re: gl1500 sub air filter

Postby The Wolf » Sun Mar 16, 2014 2:18 pm

I just did mine and did the same as 2manywings, brought a lawn mower air filter and cut a small piece-then put heavy oil on it squeezed out the excess. Not sure what it does for the engine or carbs but it was easy to change. The other filter on opposite side (for the cruise control?) I looked at it too but it was fine. That was the other filter that was mentioned in the DIY articles for filters..

Good riding!
The Wolf in Ridgely!

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RoadRogue
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Location: Castlegar BC, Canada
Motorcycle: 1997 1500SE

Re: gl1500 sub air filter

Postby RoadRogue » Sun Mar 16, 2014 2:32 pm

Cyclemax sells both of these filters. $2 for the cruise filter and $2.50 for the sub filter. 8-)
Ride safe, Todd
Over night campers welcome

papa47
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Joined: Sun May 08, 2011 4:15 am
Location: Syracuse, NY
Motorcycle: 1991 GL1500A

Re: gl1500 sub air filter

Postby papa47 » Mon Mar 17, 2014 9:54 am

thanks everyone, got a good idea, looks like I'll have to put a half day aside sometime b4 riding season.

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NebraskaHick
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Re: gl1500 sub air filter

Postby NebraskaHick » Tue Mar 18, 2014 7:22 pm

Thanks for the reminder. I have a project bike torn down. Never knew where the filters were. Now I know, and can replace them while they are handy!

Big Bob
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Motorcycle: 1996 GL1500A Aspencade

Re: gl1500 sub air filter

Postby Big Bob » Tue Mar 18, 2014 8:32 pm

I change my cruise and sub filters when I change my air and fuel filters. You have all that plastic off anyways, and the cost is minimal, so do it! beside the cruise filter seems to get real dry/brittle and fall apart easily. The sub does not, maybe the oil coating? Just my .02!

Bob
Bob Payette
Rosemount, MN
'96 GL1500A Aspencade, Red The Best Color!
143,000 miles and still going strong!
A bad day off is better than your best day at work!

godsen
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Location: Kamloops, British Columbia, Canada
Motorcycle: 1990 GL1500

Re: gl1500 sub air filter

Postby godsen » Thu Mar 20, 2014 5:05 pm

Been planning to change the cruise filter. Haven't gotten to it yet but as I was reading this post something came to mind.
My cruise works alright but seems sluggish when turning it on, setting the speed, increasing/decreasing speed. Could this be due to a dirty filter? Bad/leaky vacuum line? Or is it just the way they are?
Thx in advance for your thoughts.

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2manywings
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Re: gl1500 sub air filter

Postby 2manywings » Fri Mar 21, 2014 6:47 am

Being as the bike is now 23/24 years old, it could be any or all of the above. I would go through and do a visual check of components such as: the cruise filter, operating cables for proper adjustment and lubrication etc... The cruise system is dependent on many components working in harmony to work properly. The brass bushing on the clutch lever, the levers themselves (especially aftermarket ones), and brake light switches are common culprits of non-working systems. It could very well be vacuum related also, and if you haven't yet replaced any of those old hoses, I'd bet some are in need. But start with the obvious first. Good Luck!

Dogsled
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Re: gl1500 sub air filter

Postby Dogsled » Fri Mar 21, 2014 10:10 am

2manywings hit the nail on the head, it could be anything.
"Fight until hell freezes over, then fight on the ice"

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bellboy40
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Motorcycle: 1994 GL1500SE
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Re: gl1500 sub air filter

Postby bellboy40 » Fri Mar 21, 2014 3:32 pm

I replaced my sub air and cruise filters a couple years ago when I was doing some other maintenance on the bike and had a bunch of tupperware off anyway. The sub air filter just turned to dust the moment I touched it. I'm sure it had been there since it left the factory. The cruise filter looked ok but I changed it out anyway.

godsen
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Re: gl1500 sub air filter

Postby godsen » Fri Mar 21, 2014 3:55 pm

Thx guys, will be adding that to my spring list.

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NebraskaHick
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Re: gl1500 sub air filter

Postby NebraskaHick » Fri Mar 21, 2014 7:09 pm

Of course, the fact you have to disassemble the bike to replace a couple $2 filters is a brain fart of the 6th magnitude on Mother Honda's "engineers" part . . .

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bstig60
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Re: gl1500 sub air filter

Postby bstig60 » Sat Mar 29, 2014 8:14 pm

I changed my cruise and sub air filter last summer after my first trip. Both must have been original, they fell apart upon contact with my fingers. Can't argue about the poor design.......
Bill

Dogsled
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Re: gl1500 sub air filter

Postby Dogsled » Sat Mar 29, 2014 8:23 pm

I got a question.......does a car cruise control have a filter and/or does it even need it.....I've never changed or heard of one being needed on a car.......my assumption is this filters a vaccum line??????? seeing as the whole system seems to run on vaccum because most cruise issues i've ever read on all the Wing sites were related to a deteriorated vaccum line problems in the end.
"Fight until hell freezes over, then fight on the ice"

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ct1500
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Re: gl1500 sub air filter

Postby ct1500 » Sat Mar 29, 2014 10:08 pm

Poor design? Not at all.

Considering every sq inch of the 15 is packed with wiring, switches, relays, controls etc. etc. it is very easy to get to once every 5-10 years or so to replace by removing the inner fairing.

Plastic is held on by tabs and screws not zippers and is why when off you do everything and will be good for a number of years more.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

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Happytrails
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Location: Tarentum, Pennsylvania
Motorcycle: 1991 Goldwing 1500 SE

Re: gl1500 sub air filter

Postby Happytrails » Sun Mar 30, 2014 6:24 am

bstig60 wrote:I changed my cruise and sub air filter last summer after my first trip. Both must have been original, they fell apart upon contact with my fingers........


Same thing here. Subfilter fell apart. Cruise filter was surprisingly ok. I find the Wing to be amazingly well engineered. The only thing I wonder about is parts availability in 10-15 yrs from now. My bike is 23yrs old already.


1991 GL1500 SE Anniversary Edition
Sun Flare Gold Metallic
Vallant Brown Inset


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