Yeah, in all the years this modification has been being done to the C-14, I think there was only one guy who said he did not notice a difference other than fuel consumption. Otherwise, this is the best, easiest bang- for- the- buck performance mod. that I think can be done to a C-14. It does not really change the bike's overall max. performance because at high engine speeds and loads, the 'flies are open anyway but at low and mid- range engine speeds this mod. makes a huge difference, especially when the bike is loaded with a lot of weight.
Brian
I bit the bullet and installed a power commander and removed the secondary flies. Best thing I have done to it. The bike pulls like crazy now from bottom to top. No "soft" lower end. Dam it even shifts better or smoother, because of the mixture I think. Removing the flies was easy. I heated each screw with a 30 watt wood burning pen for about 2 minutes a screw. Put it in contact with screw head and let it heat. I did get the long handle JIS #2 screwdriver and it fit the screws perfect. Just use a steady down turning pressure and they will come right out. When each screw was almost ready to come out I put a telescopic magnet next to the screw and didn't lose one. The plate you will have to use a long finger needle nose pliers for them to pull them out. At the same time I changed the Anti-freeze. Love this bike. It now performs beautifully. My first Kaw was a 73 750 smoker. Lucky I am still around. Had all cruisers after that of different brands. Rode my son's suzuki 1000. That is a fast bike all modded up.