If you're ever scrapping one of those. it can be worth salvaging that pump for this very purpose.
Failing that a quick ebay session will have one in your hands for less than £15 inc del. It might not be big enough for a 4L lump but they do run my digger engine (2000cc) & genny engines (400cc) just fine.
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Find out where fuel pump is disconnect pipe going out of pipe to block and turn ignition on and will pump the fuel out easier if its external pump but either way is easiest option