Normally the 50cc-60cc's are automatic i have one that i have grown out of but if your looking for a big bike w/ it i am not sure.
bad clutch cable, or not enough oil on the clutch plates.
actually i ride bikes and the clutch to change gears is on the left , very few have it on the right
because they are not as fast
depends on the bike, on our wet sump, we use regular petroleum, on the dry clutch, can use fully synthetic, can feel power differently, but full synthetic makes the clutch slip on wet clutch bikes.
yes, dirt bikes are motorized
Yes in fact i have one they have three gears and neutral but most are automatic
Same as any other motorcycle, using the clutch and shift with your left foot.
dirt bikes
Everybody that races dirt bikes "started" racing dirt bikes at some point.
they make it so the bike doesnt jerk around and stall when shifting gears and so you can shoot out of turns
dirt bikes in the past had less gears and power then dirt bikes have today
no dirt bikes arn't illegal