in kawi forum there is a guy who started a thread about his complaints and filed a request for a recall for tapping and gasket leaks. there wide defect with the 07 - 08 zx6r model and we need to file a complain to get a recall. check the thread link below
http://www.kawiforums.com/showthread.php?t=
website to file the complaint
http://www-odi.nhtsa.dot.gov/ivoq/index.cfm