Found out the hard way, bad gas exists! - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 14 Old 06-19-2017, 06:12 PM Thread Starter
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Found out the hard way, bad gas exists!

On my way out for an overnight trip yesterday, stopped at my corner gas station to top off the tank as I always do, put in about 12L (3 Gallons) or so. 1/4km later, the bike starts sputtering and dies, cranks but won't fire.

Get the bike towed home and start digging into it today. Thinking it may be a blockage in the fuel system, pull the outlet hose off the fuel filter and check for flow. Gas is flowing just fine, fill up a 600mL bottle by turning the key to prime a few times. Then I notice something strange... A crap ton of water in the tank.

Weird thing is, this is a popular gas station in a high population area. Either way, I've contacted the corporation to see what they can do.

I pumped out 1 gallon from the tank, and refilled the above bottle. It's 99% gas now with a bit of water remaining. I'll just try burning it through.
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post #2 of 14 Old 06-19-2017, 06:37 PM
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post #3 of 14 Old 06-19-2017, 08:16 PM
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Putting a cap full of methylated spirits in your tank will help the water burn through.
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post #4 of 14 Old 06-19-2017, 08:24 PM
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"methylated spirits "
Translate into commercial products. alcohol?
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post #5 of 14 Old 06-19-2017, 11:54 PM
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It is likely that the gas station has a leak in a tank or a pipe underground that let the water in.

A big dose of Heet or a similar product will help get the water through the engine. The maker claims that Iso-Heet handles more water.

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post #6 of 14 Old 06-20-2017, 04:50 AM
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Originally Posted by notacop View Post
"methylated spirits "
Translate into commercial products. alcohol?

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post #7 of 14 Old 06-20-2017, 05:28 AM
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All underground fuel tanks have crud at the bottom that forms over time in a layer below the fuel. When a tank with too much crud starts to suck the fuel near the crud level, hey presto. Metho will help cleanup your bike tank but the service station has a more expensive problem on its hands.

The most common problem I find is 91 RON having been dropped in the 95 or 98 RON tank. This is a major cause of poorer running after refueling but it helps the outlet to increase its profit without most folk realising why.

There is usually another way.
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post #8 of 14 Old 06-20-2017, 09:19 AM
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A station didn't secure the filler cap and a rainstorm put quite a bit of water in the tank. The first couple motorists to fill got more water than gas.

Locally I go to one of two stations to fill. Both have a great deal of traffic, so run through a lot of gas. And if I see the fuel truck at the station, I come back later, after there's been enough time for the crap to settle out.

Allegedly, they're supposed to have in-line filters to filter out dirt and water. Obviously, in the case of water, it can be easily overwhelmed.

Definitely want to run some Heet through the tank, and probably for the next couple of tanks, just to be sure all the water is removed. Water is not kind to sensors, pumps, or fuel injectors.
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post #9 of 14 Old 06-20-2017, 10:34 AM
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I thought you were talking DA wasn't sure, thanks. I was passing a brain fart!
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post #10 of 14 Old 06-20-2017, 10:51 AM
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Luck has been with me in so many miles and years of riding have only got one tank of gas that all most side lined the bike.Was in a group of 20 or so and we pull in to a big station .A friend and I are away from the others at a pump to the side.Must have been more than one tank.When we leave and a few miles down the road our bikes start running bad and some smoke. His even died once.We guess gas and keep going till next station and I pull in and tell him to top off.Well worth it as they are better and we keep the top off deal about every 30 miles and they were fine at end of day.
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