Bad Gas after 1 1/2 months?


Information and questions on GL1500 Goldwings (1988-2000)
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mikenbrenda
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Bad Gas after 1 1/2 months?

Post by mikenbrenda »



I fired up my 1995 Honda Gold wing Aspencade May 7 of this year she was running beautifully.

I didn’t have a full tank of gas then but it was running fine! Winter did not have a full tank either.. but it ran fine..

A month and a half later after something came up, my son got cancer, I finally wanted to fire it up again and now it’s running like it’s got bad gas in it.. never had this happen before.. it’s June 29 today.. it might be bad gas as it was hot and cold a few days in West Central Wiscosnin, now it’s finally stabilized weather

So anything else I should be looking at I’m kind of stumped and I let it heat up and warm up and it’s not smooth and surges a bit even really warm it’s not smooth?


Last edited by mikenbrenda on Wed Jun 29, 2022 8:14 pm, edited 1 time in total.
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Re: Bad Gas after 1 1/2 months?

Post by WingAdmin »

Gas won't go bad that quickly.

I would first try some Seafoam in the gasoline, just to see if there might be a deposit that needs to be cleared out.
mikenbrenda
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Re: Bad Gas after 1 1/2 months?

Post by mikenbrenda »

Well thats the gas I left in it over the winter and I never topped it off, but like I said I did start it and it was fine 2 months early, but we had weird weather like warm then cold then warm and I am wondering if it condensed in the tank, thus the rough idle..

Also I noticed the idle screw thing in my filler cap area, the one that is suppose to adjust the idle is like stuck, won't turn easily, is there a way to get it to release?
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Re: Bad Gas after 1 1/2 months?

Post by MikeB »

Condensation in a partially filled fuel tank is always a big possibility. It is also a good way to rust out a fuel metal tank. Never a good idea to store a bike with a partially filled fuel tank.

As to the idle adjust, it is connected directly to the carburetor and you will have to take off some plastic to get to where it is attached. It will take some patience and fair level of mechanical ability to get to it. All that adjuster does is rotate an idle stop screw on the carb. If it is frozen in place, it may take some penetrating fluid to free it up. Or, it may free up by just rotating it back and forth. If it will move at all, it is not frozen, just a bit tight from corrosion from sitting at the same positing for an extended length of time.
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mikenbrenda
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Re: Bad Gas after 1 1/2 months?

Post by mikenbrenda »

I’m kinda hoping it’s the gas, I’m thinking it’s bad gas because that gas was pretty old like at least a year old, I thought I put a little stabl in it before winter, but what was weird is it ran fine at first then I shut it off and then waited a month and a half an hour it runs rough..

So how do you clear contaminated gas ? Could. E a vacuum like as it ran fine then all of a sudden bam.. rough
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Re: Bad Gas after 1 1/2 months?

Post by MikeB »

If you beielve it to be bad fuel, you can siphon it out and then add new fuel. Use the siphoned out fuel in your lawn mower of other yard equipment.
Or, you can add some Seafoam or other fuel additive and then add new fuel to the tank and then just go for a ride.
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mikenbrenda
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Re: Bad Gas after 1 1/2 months?

Post by mikenbrenda »

Well what I did was I added about 2 1/4 gallons of pure gas with probably about an eighth of a can of seafoam but it’s still running rough, so I filled the tank and I ran it for a little bit for two days now it seems to be getting a little bit better every time so maybe?
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Re: Bad Gas after 1 1/2 months?

Post by MikeB »

It takes time. Good fuel added to contaminated fuel just gives you less contaminated fuel. Every time to add new fuel, it becomes less contaminated.
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Re: Bad Gas after 1 1/2 months?

Post by Swagonmaster »

Consider also that it might be something else completely. Wings are fameous for having vacuum hoses split and give a vacuum leak that will screw up the running royally. I had a large leak that convinced me that the timing belt had jumped a tooth or something since it ran that poorly and had a clacking noise that sounded just like valves hitting the tops of the pistons. One repaired hose later and all was well.


Try to learn from the mistakes of others..... you won't live long enough to make them all yourself!
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