This is really easy to do, even easier to do with with the OEM (Helms) service manuel.
There is a bolt on the Head (Left side w/a copper crush washer) that will allow you to drain the top on the engine... there is a bolt on the water pump (Left side with a copper crush washer (at about 5 o'clock) that will allow you to drain the bottom of the engine. Only use coolant that is compatable with alum., also only use distilled water. *(Note right vs left means as you sit the bike).
To fully flush the system you need to do this at least twice.... I've never been able to completely evacuate the system until I've done this at least three times.... BUT.... I was trying to get all antifreeze out in order to to trackdays.
A forum community dedicated to Honda Fireblade motorcycle owners and enthusiasts. Come join the discussion about performance, racing, modifications, classifieds, troubleshooting, maintenance, and more! Find conversations about your favorite CBR 900 or 1000 series RR models.