I just took off the right side panel to change my transmission oil (300 miles on new Tomso Sprint). I noticed the top screw (filler plug) is underneath a box about 8 inches long and 4 inches wide. What is this box? Is it the air filter?
Also luckily I read that you don't have to put the new fluid in this top filler hole. You can just lean the bike on its' side and put in transmission fluid through the "checking bore hole".