CBR600F fork air equalizer
 

Honestly I'm not sure how much difference this will make, but it seemed like a mod waiting to be tried. In the midst of an F1 to RR fairing conversion and restoration on my 1990 Hurricane I detoured to try out the notion of creating a fork pressure equalizer with a gauge. Everything is 1/8" NPT fittings, and here are photos of the test fitment of the setup.

http://bottlehead.com/smf/index.php?...ach=6114;image

http://bottlehead.com/smf/index.php?...ach=6116;image

The trickiest parts to find were the adapters from the schrader valves in the stock fork caps to 1/8" NPT. I ended up buying a couple of air chuck adapter sets that contained a bunch of different fittings, and one fitting in the set seemed to work pretty well with a generous application of Teflon tape. The other parts are two 1/8" NPT tees, a 6.5" paintball gun supply line with a quick disconnect (so you can screw the assemblies onto each fork cap and then hook the equalizer line together), a compressor air valve for filling (valve cores in fork caps are of course removed) and a neat little 0-15 lb. fuel pressure gauge with a 1" dial.

There are about 7 possible points for leaks and I don't quite have them all sealed yet, but I was able to run it up to see the gauge read 4lbs for a bit before a slow leak dropped it back to zero. A spray bottle with soapy water will be employed to track down the leaky fitting. Total parts cost was about $30.

Edit - I'll just add that I ended up putting 1/4" ID 1/16" thick o-rings at the base of the stock valve threads to seal up the last bit of air leakage between the valve stems and the adapters.

Nice job!