Two ways, fast easy way and the correct way. Suck the oil out with a mighty-vac, or get the front end off the ground and take the wheel and forks off the bike, not as bad or difficult as you may think, I did mine, forks off, changed the oil, forks on at a campground last year in about 2 hours total. Get the Kawasaki service manual and a torque wrench. I eventually settled on the .95 Sonic springs and 7.5 weight oil, there are many other options. Lots of threads here about this subject. Its not hard, really, take your time, maybe get a friend to help do things like hold a light or confirm an oil level, spend a nice day and do it, you'll learn and you'll know its done right cause you did it, and after, you'll feel great cause now you've learned how to work on your bike and you'll be wanting to do other stuff. Good luck, keep us posted, don't be afraid, its real hard to mess up.