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Main Area => General GS500 Discussion => Topic started by: gregvhen on January 17, 2010, 10:45:40 PM

Title: aftermarket carbs?
Post by: gregvhen on January 17, 2010, 10:45:40 PM
has anyone ever tried hooking up some aftermarket carbs? or any carbs off a differant make twin?  dirt bike carbs? single car carb? anytihng to fix the problems that GS carbs seem to have alot?
Title: Re: aftermarket carbs?
Post by: jeremy_nash on January 18, 2010, 06:30:59 AM
I believe the carbs off a katana are similar, you would have to use the outer 2 carbs though
Title: Re: aftermarket carbs?
Post by: BaltimoreGS on January 18, 2010, 08:04:13 PM
Quote from: gregvhen on January 17, 2010, 10:45:40 PM
anytihng to fix the problems that GS carbs seem to have alot?

Once dialed in GS carbs are as reliable as anything else I have ever owned.  The biggest problem I had was tank rust on my '89 clogging the jets.

-Jessie
Title: Re: aftermarket carbs?
Post by: gregvhen on January 18, 2010, 08:08:00 PM
yea i started a tear down today and am gonna do my tank right. i found alot of nasty gas when i drained just what was in the lines.
Title: Re: aftermarket carbs?
Post by: BaltimoreGS on January 18, 2010, 08:18:43 PM
Add an inline fuel filter when you reassemble the bike.  They are only a few buck at a motorcycle shop.  Don't use an automotive filter, they won't flow enough fuel in a gravity fed bike.

-Jessie
Title: Re: aftermarket carbs?
Post by: dauphinc on January 18, 2010, 08:24:32 PM
just drive the thing. the fuel flow keeps it decently cleaned out, if you put good fuel in it. carbs are made to be used, and hate to sit for a while. i work on the things all day at work.
Title: Re: aftermarket carbs?
Post by: RichDesmond on January 19, 2010, 07:56:54 PM
Quote from: dauphinc on January 18, 2010, 08:24:32 PM
just drive the thing. the fuel flow keeps it decently cleaned out, if you put good fuel in it. carbs are made to be used, and hate to sit for a while. i work on the things all day at work.

Yep. There's no "problem" with the GS's carbs, other than that they get gunked up from lack of use. Just like all other carbs. :)
Title: Re: aftermarket carbs?
Post by: gregvhen on January 19, 2010, 08:39:52 PM
Quote from: BaltimoreGS on January 18, 2010, 08:18:43 PM
Add an inline fuel filter when you reassemble the bike.  They are only a few buck at a motorcycle shop.  Don't use an automotive filter, they won't flow enough fuel in a gravity fed bike.

-Jessie

thanks for the tip, i actually added a GM filter a little bit ago cause i still had some rust in my tank after attempting to clean it real good.
Title: Re: aftermarket carbs?
Post by: The Buddha on January 20, 2010, 08:51:06 AM
You cannot clean the rust. You have to get it out with acid, and coat it with kreem or POR15 or something.
Buddha do GS tank for 100 bucks. However if its very rusty, I recomend punching a hole in the top, welding in a tube into it and when the tank goes back on the bike, you run a hose on that with a freeflow valve and it works as a vent.
Cool.
Buddha.
Title: Re: aftermarket carbs?
Post by: gregvhen on January 20, 2010, 11:58:52 AM
yea im gonna be ordering the POR15 get shortly.
Title: Re: aftermarket carbs?
Post by: The Buddha on January 20, 2010, 02:18:50 PM
The hardest part with POR15 is that the tank has to be bone dry ... the tank dont drain 100% and you will have to swab up a pint or 2 of water. The thing is, invisibly there is water @ the welds like near the filler cap etc too. Getting it dry before it rusts is always the game with it. Acetone helps if there is only traces of water.
Cool.
Buddha.
Title: Re: aftermarket carbs?
Post by: johnny ro on January 20, 2010, 07:33:41 PM
filters are great etc etc but not perfect final solution for rust. I have cleaned rust dust out of filtered carbs. Very fine stuff, and I think it was not a paper filter, one of those screw together glass filters with compressed discs for an element.

Somewhere I saw a paper filter tear, letting the whole mess go through all at once.