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Old 03-20-2017, 12:26 PM
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Default Gas Tank removal / fuel line disconnect

When removing the gas tank on a '06 F4i, do you have to either drain the tank or run it out of gas when you disconnect the fuel line in order to keep gas from flowing out?

I had not done this before. Or, if I did, there was a petcock to turn off, as I recall. There isn't a fuel petcock on a fuel injected motor.

I did lift the tank and manage to change out the air filter with my two daughters holding it up and the fuel line connected. One of them got some leaking gas. I didn't have a siphon or the desire to siphon out all the gas. The tank was full.

Also, how do you unplug / disconnect the fuel line from the tank? WIll the gasoline just rush out when you do that?

I can't even find a YouTube video on this.

Just got a like new yellow '06 F4I this weekend.
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Old 03-20-2017, 12:58 PM
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Leave the lines on the tank. Undo the nut on the fuel rail and remove the seal and line. Have a rag handy for a little gas to spill. For the return line, either clamp the line with a vice grip before disconnecting it, or pinch it with a pliers and remove it from the rail and plug it with a bolt.
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Old 03-20-2017, 01:02 PM
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Wonderful! But what is the fuel rail and which is the return line?

Thanks for your help.
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Old 03-20-2017, 01:18 PM
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The fuel rail is on the motor with the injectors.

The pressure line has a banjo fitting on it. It's on the right side of the motor by the frame. The return hose is on the left side by the FPR and is just clamped tight. Both go to the bottom of the tank.

The other hoses on the tank are drain tubes and don't have fuel in them.
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Old 04-03-2017, 10:37 PM
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Both hoses poured out fuel when I disconnected my tank. It was quite uncomfortable holding a fuel jug up to the side of the bike letting the full tank of gas pour out the fuel lines into the jug while also holding up the fuel tank. Made quite a smelly mess in the process too.
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Old 04-04-2017, 10:41 AM
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That brings up another question, what are the three hoses going into the fuel tank and what happens if one of them gets pinched when putting the tank back on? On another bike on mine, a Bandit, I'm getting a kind of hesitation or jerking when I accelerate rapidly ever since I removed the tank to put in a clean air filter. Could one of the hoses gotten pinched and cause that?
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Old 04-04-2017, 11:40 AM
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If one of the fuel lines is pinched, then sure it can. If it was fine before but not now, then it must be something that was changed by whatever you did.
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Old 04-08-2017, 07:51 AM
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Quote:
Originally Posted by Bubba Blue View Post
When removing the gas tank on a '06 F4i, do you have to either drain the tank or run it out of gas when you disconnect the fuel line in order to keep gas from flowing out?

I had not done this before. Or, if I did, there was a petcock to turn off, as I recall. There isn't a fuel petcock on a fuel injected motor.

I did lift the tank and manage to change out the air filter with my two daughters holding it up and the fuel line connected. One of them got some leaking gas. I didn't have a siphon or the desire to siphon out all the gas. The tank was full.

Also, how do you unplug / disconnect the fuel line from the tank? WIll the gasoline just rush out when you do that?

I can't even find a YouTube video on this.

Just got a like new yellow '06 F4I this weekend.
I am also curious, does the vent tube (I think thats what its called, its about 6" long and the end is a plastic tube that makes an angle of about 135 degrees) have a specific mounting point or does it just hang from the tank?
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