Motorcycle Repair: my kawasaki ninja, kawasaki ninja 250, rear sprocket

Question
hello i have a kawasaki ninja 250 and i was wondering if there is anyway to gear it down to do wheelies
so if you could help me find some way to gear it down

Answer
I usually only answer questions on harleys, but I think I can help.
What you can do is change your rear sprocket to a larger sprocket. This will gear the bike down. As to what size I cant tell you. The other way you can go is to change the front sprocket to a smaller sprocket. This will do the same thing. One thing you have to remember, this will give you more lower end off the line, but it will run at higher RPMs at high speeds.
Good luck
Mike