My '73 750 Hi-Rider has a spin-on canister filter on it. Can someone verify whether or not the '73s were originally factory fitted with the spin-on filter set up, or may it possibly have been an add on. I've read posts here on the forum that indicated that at some time in '72 Norton did start installing the spin-on set up. I've also read in a listing by an Ebay seller selling filters (Emgo) that '73 and forward that the 850s had the spin-on filter set up but claims that most 750 Commandos did not come with an external filter. My bike has the build date of 1/73 on the i.d. plate. Anyway, what filters are members using or can recommend, or any cross reference numbers to commonly available filters. I'd assume many are using the "Norton" stamped filter. Are these filters produced for Andover Norton, and therefore are able to use/print the Norton name on them? AN sells the "Norton" filter at a reasonable price, but by the time you add the VAT and shipping, then not quite so cheap.
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