I am aware that adjustable camshaft gears/camshaft sprocket tampering is illegal in FB unless its factory stock original, but why? Once these engines are opened and worked on, it is very difficult to get the correct camshaft timing. More than likely the camshaft will never go back in the same "spec" that it came from the factory. How likely is it that a rule change will be made in this area in the future. I'll be watching what the new committee does with some of the rules This rule seems a little extreme considering that all sorts of electronic interfaces can be used to manipulate the factory engine management outputs. When I set cams on moto engine with adjustable sprockets, I go to extremes to make sure all my degree-ables are covered.
ps. i know my K5 Gixxer motor has a few extra ponies in there somewhere, cam sprockets might be the answer, freecamsprockets!!!
Marchand Juan