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Gumout?

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I just had my '81 GS450L out for a ride today and she started bogging down a little at different times in different gears. I know this is probably a carb cleaning thing. It's not bad enough where I think I need to soak it. What I'm wondering is; can I safely pour Gumout in the tank more or less to keep the carb clean and prevent any build up?

Thanks,

Paul
 
If you have not cleaned them in a while I would do the full dunk and sync, that way you will know they are clean for sure. Gumout is just a temporary fix.

There could also be a number of underlying reasons for the lack of performance, for instance, the battery, dirty air cleaner, to name a couple.

Scud
 
Re: Gumout?

Gumout will not harm your engine, but my opinion is it is a waste of time and money because it will not help either.

If the carbs are dirty, there really is only one answer, Take them apart and clean them. Anything less is just whistling in the wind and waiting for pie in the sky. :-) :-)

Earl


snark said:
I just had my '81 GS450L out for a ride today and she started bogging down a little at different times in different gears. I know this is probably a carb cleaning thing. It's not bad enough where I think I need to soak it. What I'm wondering is; can I safely pour Gumout in the tank more or less to keep the carb clean and prevent any build up?

Thanks,

Paul
Click to expand...
 
it does mean more work , but go ahead and clean the carbs...... :roll:
 
If the gumout is too concentrated it can harm the rubber plugs and o-rings in the carbs. If I remember correctly, gumout for fuel injectors does not have this problem.

With only two carbs to deal with I'd at least pull them off, drop the bowls and give them a good squirting with carb cleaner.
 
You are right Jeff. Once again I screwed up and assumed use would be in reasonable concentration. LOL Its like water. Drinking water is not harmful to humans. Unless one drinks too much of it and then it can be fatal.

Earl :-)


Mr. Jiggles said:
If the gumout is too concentrated it can harm the rubber plugs and o-rings in the carbs. If I remember correctly, gumout for fuel injectors does not have this problem.

With only two carbs to deal with I'd at least pull them off, drop the bowls and give them a good squirting with carb cleaner.
Click to expand...
 
I figured some dilution is in order. The bottle says it treats up to 21 gallons. I think that may be a little strong for a 3 gallon tank. I think I may end up dunking them after hearing from you guys. Next question -- Where do I get the solvent and where do I get the rebuild kit? I checked Dennis Kirk and they didn't have anything usefull listed.
 
You will need a can of Berrymens, get the one gallon can it comes with a basket for small parts, this can be bought at most auto parts stores. Next order a set of o-rings from Robert Barr, these are the best you can find and they are well labeled and come in small plastic ziplock bags.

Scud
 
What about the other gaskets and seals...or does it use RTV sealant?
 
With regards to the carbs, if you are careful you can re-use the float bowl gaskets, the only 'gasket' in the carbs, other then that you will not need any other new gaskets.

Once the four screws to the float bowls are removed gently pry them apart with a thin blade screw driver and be careful not to score the aluminum surface, gaskets should be able to be re-used if you are careful.

RTV sealant is not necessary, and not advised in the carburetor region.. :?

Scud
 
RTV/silicone turns into instant carb blocking sludge glue when exposed to gas. Dont even think about using it!

Earl

snark said:
What about the other gaskets and seals...or does it use RTV sealant?
Click to expand...
 
earlfor said:
You are right Jeff. Once again I screwed up and assumed use would be in reasonable concentration. LOL Its like water. Drinking water is not harmful to humans. Unless one drinks too much of it and then it can be fatal.

Earl :-)


Mr. Jiggles said:
If the gumout is too concentrated it can harm the rubber plugs and o-rings in the carbs. If I remember correctly, gumout for fuel injectors does not have this problem.

With only two carbs to deal with I'd at least pull them off, drop the bowls and give them a good squirting with carb cleaner.
Click to expand...
Click to expand...

Actually I have first hand experience with Gumout's rubber dissolving properties. :oops:

You're right about that water - too much can kill you. That's why to be on the safe side I usually dilute it with scotch.
 
I hate to disagree, but if the carbs are not badly gummed up, Sea Foam can make a big difference. Don't use Gumout for the rubber dissolving issue. I have used Sea Foam on my GFs 81 GS650 and it has made a big difference. I am not usually a fan of these quick fixes, but Sea Foam does help as long as the carbs are not totally gummed up.
 
Where can I get Sea Foam? I'm not looking to escape working on the bike...that is half the fun, but I don't want to take it apart unnecessarily either. I've heard some people recommend Gumout, some warn against it. Unfortunately, my Suzuki dealer is no real help.
 
I lean more towards a nice Irish Whiskey. Wonderful. :-)

Earl

Mr. Jiggles said:
You're right about that water - too much can kill you. That's why to be on the safe side I usually dilute it with scotch.
Click to expand...
 
Autozone & Oreilly's both usually carry Seafoam. Its like a combination of Marvel Mystery Oil, B-12 & Stabil all rolled onto one. I use it on a regular basis.
 
I will agree, Seafoam is great stuff. I have some in my newly purchased GS1100GL and things are smoothing out. I have also used it in my Merc. outboard and 1200 Goldwing. I believe it also has something like Stabil in it. I get it at Napa.

Forget the water use Tequila
 
As far as I know, AutoZone does not carry it. NAPA and O'Reilly's does.
 
I first learned of Seafoam from a performance boat mechanic. You might try marina's and such.
 
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