Which of these pipes lets the tank run empty? Pics included, can anyone identify the hose?

The hose in the first picture is the fuel pump connection, however, I don't think it flows fuel when disconnected as I recall.

The hoses in the second picture just look like the vent and scupper drain hoses.

Honestly, it would be easier to just siphon out what you can then fill with fresh fuel.

rv6john said:

The hose in the first picture is the fuel pump connection, however, I don't think it flows fuel when disconnected as I recall.

The hoses in the second picture just look like the vent and scupper drain hoses.

Honestly, it would be easier to just siphon out what you can then fill with fresh fuel.

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Cheers, but I was hoping to let all the muck and dirt that's undoubtedly at the bottom of the tank after so long flow out with it. Who knew it was so hard to let a fuel tank drain out.

What if the ignition is switched on after disconnect? Would a working fuel pump drain the fuel out?

Your '98 'may' be different than my 2018 but one should be a tank vent, one tank overflow, and the circled one the supply line to the fuel rail. To empty my tank I just disconnect the supply line from the fuel rail, put the end of the line into an empty 5-gallon gas can, and jump the fuel pump relay terminals to pump the gas into the gas can. Note: it's possible that any debris in the tank could clog the fuel filter, so just taking the tank off and dumping it from the filler cap may be a better option.

Gold333 said:

Cheers, but I was hoping to let all the muck and dirt that's undoubtedly at the bottom of the tank after so long flow out with it. Who knew it was so hard to let a fuel tank drain out.

Click to expand...

Do actually see dirt/muck on the bottom of the tank? You can see the bottom of the tank on most of these bikes pretty well through the fuel filler port.

If you do see stuff, it is best to pull the tank, remove the fuel pump and flush the filters. You can clean the tank well with the pump out also.

I agree with hyde whyte , just remove the supply line from the fuel rail and turn your key on I'm not sure if your bike has time out switch on the pump, which will only let the pump cycle for so long without the pressure switch shutting the pump off? If it does time out, just turn the key off and cycle the pump again until it's drained, you might want to hook a charger to the battery though, keep in mind if you do hook a charger up , be careful not to touch the charger clamps, you don't want any kind of sparks around gas fumes!!

You can find the service manual here, it will tell you how to remove the various parts. Download is safe, I have used the site before many times.