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"KRS/GT" Technical Q&A K1200RS/GT Technical Questions/Answers

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  #1  
Old 12-22-2018, 10:24 PM
garyS-NJ garyS-NJ is offline
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2003 k1200gt Best way to drain fuel tank

Left my gas cap open in the rain and need to drain the tank. I inhaled enough trying to siphon and decided to access the quick disconnects. Both came apart but only the inside female spit fuel when I pushed the inside with a coathanger. That's tak8 my too ling in the cold so either the tank comes off (some small hoses seem captured in the body). Or I take t he female quick disconnect off. The male is metal and female is plastic (is this the new and improved?) And the hose clamp is the crimp style.. if I get that clamp off will I likely damage the disconnect trying to pry it out thed fuel line??
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Old 12-22-2018, 10:25 PM
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Re: 2003 k1200gt Best way to drain fuel tank

Oh and i would have used tge seatch forum function.
But it's not working on my phone
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Old 12-23-2018, 08:28 AM
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Re: 2003 k1200gt Best way to drain fuel tank

I bought a manual siphon pump I used to get bad gas out of the fuel tank of my boat, worked great and took me about 10 minutes to pump out 15-20 gallons of fuel. A bit of work but no inhaling of fumes and the pump itself only cost 10 bucks or so. Any auto parts store or boat shop should have them.
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Old 12-23-2018, 12:34 PM
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Re: 2003 k1200gt Best way to drain fuel tank

Pull the fuel return line from the pump flange.That's the outer line.

Stick towel under the tank.Unscrew the clamp,pull line and stick finger on the pipe quickly.Then quickly insert a 5/16" hose on the pipe and drain away.Leave smelly rag outside.

Mind you there will still be some residual water up in the tank after that.A cup or two of water/gas mix?
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Old 12-23-2018, 05:55 PM
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Re: 2003 k1200gt Best way to drain fuel tank

After you figure out your favorite way to remove the gas, I would pour in some clean fuel and swish it around and remove that a couple of times. Inserting hoses into the tank should be done carefully. You might consider removing the tank and just dumping it out. Penance for leaving the cap open.
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Old 12-23-2018, 06:22 PM
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Re: 2003 k1200gt Best way to drain fuel tank

How much gas was in the tank before the mishap???
Personally I canít imagine much rain getting in the tank, I think I would just put a couple cans of seafoam in the tank and fill the tank and run that tank out.
Yes, draining tank completely would relieve you of knowing thereís no water in tank, but to me seems like a lot of work for what little water might be in there.
Itís not like you parked it under the gutter spout and all poured in.
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Old 12-24-2018, 08:14 AM
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Re: 2003 k1200gt Best way to drain fuel tank

Thanks pegin. Sounds li ke your idea works if there is a quick nipple in place of the quick disconnects. And can anyone cpmmentg on my quick disconnects ifc they are the good ones or the ones that break and do the orings on them get swapped?)..

And as to how much water in there, it was full and the tank cap was laying down but seems enough water got in there because it no longer runs and the fuell i pulled off had water in it. Perha ps the last time i topped it off I got a bad can of gas. Ntl my question pull out the plastic disconnect, actuate it somehow, or lift off the fuel tank.
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Old 12-24-2018, 09:24 AM
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Re: 2003 k1200gt Best way to drain fuel tank

Gary,
You never said the bike no longer runs??? And Im trying to understand what you are saying, was the tank full of gas when you left the cap open?? Or are you saying the tank did not have much gas in it and now its full with water? If your tank was full before leaving the gas cap popped up slightly, man I just cant imagine much water getting into the tank preventing the bike from running. I wander if there’s another issue?
As far as the quick disconnects, the plastic ones are no good, if you plan on pulling the tank, you might as well order a new set from Beamer boneyard along with a new gas filter with a new set of there stainless steel hose clamps.

And hears a tip that Lee gave me years ago that works like a charm! save the old disconnects and attach a piece of hose too it, and if you ever have to drain the gas tank again, simple attach the one old one to the new one so the fuel will drain right out into a gas can.
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Old 12-24-2018, 10:41 AM
garyS-NJ garyS-NJ is offline
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Question Re: 2003 k1200gt Best way to drain fuel tank

Water is heavier the n gas so even if the tank is to the brim (& mine was there for winter storage as I still have a swingarm issue and it's cold to work...), rain would displace the fuel. Sorry for any confusion. I thought about writing all the background but recalled on one of my first posts someone said I ran on too much...
so to be clear it was running before I topped it off and now it starts and dies and I found the cap wasn't clicked down and it's been raining. And so I drained some fuel and it was cloudy and it settled out with water in it.

On the quick disconnects my male sides are metal. Isn't that new style?
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Old 12-24-2018, 11:17 AM
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Re: 2003 k1200gt Best way to drain fuel tank

Quote:
Originally Posted by garyS-NJ

On the quick disconnects my male sides are metal. Isn't that new style?


Sometimes shops would only replace the male end with metal.
Most of us that did the repair our self replaced both ends with metal.

Most of us purchased these from Beemerboneyard.
https://www.beemerboneyard.com/cpcqkdiscon.html

Check with them to see if you can only purchase the female ends.


Here's a picture of what RS530 mentioned for draining the tank.


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Old 12-24-2018, 11:55 AM
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Re: 2003 k1200gt Best way to drain fuel tank

I think you can buy the female QDs separately.Check the CPC website.That's the brand name for the QDs,either the plastic or plated brass.

Straight barbed connectors will also work.On the pressure side,that is the inboard line at the tank,you can disconnect at the pipe/nipple and just a few tablespoons of gas will come out.

However with that amount of water in there...new filter for sure.And cut that filter open to inspect the material.May have turned to mush and plugged the injectors.

Funny...nephew resurrected my former B-I-L Toyota truck.Ran like shit on the test drive.So I pumped gas out at the rail and saw water.I drained the tank and a 1:2 water/gas mix came out.3 buckets so about 15gallons.I let it decant for a couple days and the 10 gallons of gas went into my buddy's Jeep.

But the Toyota? Even with a new filter/fresh gas it ran better but died shortly thereafter.I didn't have my injector testing tools with me but I can take a good guess as to what killed the fuel supply.
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