How do change an air filter element on an 1974 850cc Norton?
The air filter front plate on this bike has some curious plumbing on the inside which does not allow it to slide away from the air filter. They must be removed as one. The bike is original. Replacing is a nightmare because the air hoses must be seated.
I own a 74 850, although, as soon as I bought it I changed it to a K&N dual inlet airfilter, and since have converted to a single Amal carb with a foam sock type filter. However, I did install the stock unit once. I believe most of the difficulty

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