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Never. That is a Shimano freewheel which had a different spline arrangement, no seals and no top protector (outer chain guard). That freewheel requires a Shimano TL-FW20 (aka "Boss"), Bicycle Research CT-4 or equivalent removal tool.
Note also that it has cogs with triangular cutouts. Those cogs were used only on the 1975 Sports Tourer, so even if he swapped the cogs over to his existing Model J it would be technically incorrect for a '74 model. The following pics show the correct freewheels for a 1972-'74 (left) and 1975 (right) Sports Tourer. Unfortunately I don't have a pic of the unique version used in '71.
Here is my home made tool made out of a grade 8 nut. I can't take credit for the idea but I improved upon it. Worked like a charm after I threw away some money on the wrong remover.
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