Lots of great information in this thread. As promised, I yanked my Water Pump this week and replaced the offending seal. Thanks for posting that part# as I'm sure big Kaw wouldn't let me at it. I used an upside-down large 1/2" drive socket to drive the seal in, then painted the edge with red loctite (just enough to "seal" the groove between it and the pump body. Unless your pump and cooling system are in bad shape, don't split the pump, just pop the bad seal out with a small screwdriver (it comes out easy) and clean up the area under it with alcohol and Q-tips before installing the new one. Bleeding the system was a breeze too. To drain for pump removal: Remove the bolt on the pump and try to catch all of the coolant with a large shallow pan, then also open the bleed screw at the bottom of the output line behind the exhaust pipe and that'll be all you need out of the system. (about 3 qts.) Remove the outside line between the radiator and the pump to make enough room for working. When you fill it back up, go slowly and after 2 qts. are in, open the bleed bolt on the pump until only coolant comes out (no air). If you haven't done it already, remove the gas tank and open the bleeder on the thermostat housing. I put a 12" length of hose on it and ran it to a catch bottle while I continued filling through the radiator very slowly until the coolant flowed from the bleeder without air. All told it took about 3 qts. of Honda's coolant to bring the bike back on line, including refilling the recovery tank. After all the work, I have no leaks and am well satisfied with my work. Thanks for all the good advice and help. BTW: the slave cylinder doesn't need bled, just remove the 3 bolts evenly and it'll push itself out. Mike in TX