Whats the easiest way to empty gas tank on an 87?

#1

I’m going to swap the 55L tank for a 63L tank. What is the easiest way to drain the tank? I’m thinking that there is a fuel line under the hood I can pull off and pump into a gas can, but I need to activate the fuel pump, too. How do I activate the fuel pump? I don’t want to pull the crossover tube and try to drain it, as I don’t have a big pan to catch it all in.

Thanks in advance.

#2

Remove the plug on the bottom right side of the tank and let it drain. If the cross over tube isn’t plugged all of the fuel will drain out. As a check for a plugged cross over tube, take it off after the drain.

#3

I would never question the master of course but i have heard there is risk of damaging that plug. Jim is that not a concern?

#4

It isn’t unusual to strip the hex socket in the plug, in which case vise grips will work. A replacement plug is part 07119919112. So it matters not if the plug gets damaged.

An alternative to removing the plug, which works on a 55 or 63L tank is to pull the pump (and left side sensor on a 63L tank) and siphon out the fuel.

#5

Thank you master. Btw u think u will make barber?

#6

Drive around the block until you run out of fuel!

#7

The Bentley manual has a procedure for checking the fuel pump flow that should work to disconnect the hose from the fuel pressure regulator and run a hose into a fuel jug.

#8

[quote=“King Tut” post=75521]The Bentley manual has a procedure for checking the fuel pump flow that should work to disconnect the hose from the fuel pressure regulator and run a hose into a fuel jug.[/quote] This is what I did also. Just take care you don’t run your pumps more than a couple seconds dry. The high pressure pump will over-heat and die.

I didn’t realize there was some plug underneath. That sounds like a good solution too.

After Scott’s info on the baffle hole getting plugged, I’m tempted to drain mine and see what the inside looks like.