OK....Im waiting for my manual to come in the mail and this is going to be a really stupid question but I'm determined to do things the right way. What is the dipstick at the top of the frame for? I was told a couple different things like the engine oil. But it looked red and didn't smell like it. It was also low on the stick. Please keep in mind that I havn't rode in 10 years and the days of the air-cooled TTs are gone. I already took off the air-box and did a total cleaning of it and the connections. Everything else sounds and looks great.