Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
Not exactly want you need to see John but.https://classic-bikes.de/en/honda-luftfilter-satz-17200-354-005-3Might solve the problem but bloody hell that's expensive.
agreed I wonder how many they sell nearly 50 years after original manufacture
Have you seen this John https://www.hondatwins.net/threads/cb200-air-filter-refurb-query.1440/