State laws may vary, but usually 125cc is the minimum.
Under 150cc is a Scooter and you need an "L" class license in IL Over 150cc is considered a motorcycle and you need a "M" class license in IL "Do you need a motorcycle license to operate a motorcycle if it is under 150cc in illinois?"
A motorcycle engine is 150cc. This size engine is going to be installed on a small motorcycle, probably an off road bike that has a top speed of about 35 mph.
no
yes and not only 150cc but for 50cc as well, and insurance.
150cc
yes
YES
no
yes
Unban tank 2006
Please check the Motorcycle Manual (related link).
Yes you can, but you need a motorcycle license.