Turn signals
I checked with the KHP here in my home town in kansas before I bought my '07 Whizzer and this is what they found when they looked it up. First of all the vehicle must meet the Federal Highway Safety Standards, and the Whizzer does, then it must have a vin#, the Whizzer does. If the motor is 2 hp or less and is 130 cc or less then it is classified as a "motorized bicycle" not a moped, the registration paper work says motorized bicycle. I have friends with mopeds and their reg. papers say moped. Anyway if it meets the above criteria then it isn't required to have turn signals, a motorcycle license, or liability insurance, just a license plate. If the horsepower and cc's are more than above than it is classed as a motorcycle and you are required to be licensed and insured for one. If the motorcycle is pre 1973 it is not required to have turn signals. Now for the odd part. Because the "title" states it is 1.95 hp but doesn't show the cc's, my Whizzer is classed as a motorized bicycle, requires license plate only, but I do have a motorcycle license, liability insurance, and I agree with KilroyCD that most drivers today don't know or think about hand signals, so I to have turn signals on my Whizzer.
Sorry this is so long, hope it helps someone in KS.