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Pre-Filter on GL1500

1993 Views 19 Replies 8 Participants Last post by  Psalmist
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I know I have seen it discussed here before. But I can't find it. I even searched the forum. Would someone please point me in the right direction. :baffled::?:gunhead:
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If you are talking about the sub air filter, it's located below your right hand fairing pocket.

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What does that thing do?
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396fish I'm not quite sure what it does myself But I hear from others that most of the time when they ck it it has crumbled. Dusty Boots thanks I guess I didn't take enough plastic off .Oh well Back to the mill
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Just changed mine last week. And Yep...it crumbled.
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Do you have to take off more than the right hand glove box?
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Yep. Have to pull the right hand fairing.
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You need to remove the ignition switch cover, right top inner cover, right fairing pocket, right fairing lower cover, seat, top compartment then the right fairing inner cover.

This might sound like a lot but it does not take very long to remove them.

Note: You do not need to completely remove the right fairing lower cover, just enough
to remove a screw near the air vent.
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Thanx I'll start tomorrow. Someone somewhere fashioned a new filter out of a lawnmower filter &Ithink I'll give that a try.
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Are there any symptoms that say it needs to be looked at? Pre filter to what?
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None yet. But after seeing some of the other stuff that was let go on this trike. I think Im going to do some preventitive maintance I just bought it in April.
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Would sure like to know what the deal is with this filter. Function, symptoms, consequences etc. Reckon this is getting too deep in the deal to be noticed?
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Hey 396fish start a new topic cause I don't quite understand its purpose either
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"It's all about Emissions certificationand the control of the decel-backfire-- The air under the GL1500's filter is pretty full of hydrocarbons when the throttle sliders are closed (you know, our lovely fuel smell) ... By drawing the decel lean air from that area, it was dificult to hit the emissions standards.Alternately, drawingdecel air via the sub-filter afforded thedesigners nice 'clean' air without the additional HC's being drawn-in the decel-intake supply."



from:

http://www.goldwingfacts.com/forums/view_post.php?post_id=828377
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Thanx satan I don't know about Co. but here in Wa. we don't have to do the emissions thing But just the same I think I'll put a lawnmower filter in.
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Emission design strictly for US EPA compliance (and likely others)

No inspections here in CO (for bikes; some regional car stuff though)-- the US EPA requires certification on all motor vehicles from the manufacturer (stuff like chain-saws and lawn-mowers also must comply with EPA emission standards -- not like they're tested after production either...) :)
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Where I live (in the middle of nowhere) it is not required on vehicles. But the bigger cities it is required
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Satan, thank you for the knowledge!
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Change the filter!the air blast goes directly to the carbs if it disintegratesparticles are now in your carbs. Probably looking at pulling them and cleaning if this happens. I'd rather ride than pull it apart for something that could be avoided.
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It needs to be checked or changed yearly or the Flux Capacitor will disengage the thromblinspindicator. Also change the cruise filter for good measure. It's on the other side of the backbone.
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