yes
you can jet it by buying better floats or you can take the govenor off . clean out the oil filter!
you can be any ages and you cant take it on the road because they are off road bike
About a litre
its broke. take it to the shop.
Just normal gasoline
Flooding a dirt bike can be very frustrating. The best thing to do is just to take the plug out and wait for about 20 min. this will drain the excess gas inside the cylinder
port out the cylinder head, replace the muffler, get a performance air filter, get a smaller sprocker for the rear wheel,and take off any electronics that you dont need.
After defeating Leon, you take what you want to combine to the dirt bike in his trailor and combine it there.
Regular gas
Any where form $50-$100, give or take.
for starters, you could take out the head and port and polish it. then if you want, you can take the spark arrestor out of the exhaust pipe. less restriction. a cheap upgrade would be a k&n airfilter. you can get those for your bike for i think like 20 bucks max. the reason i know is because i have this bike. im a 14 year old kid who had to do this on my own so i could race it. after you get into it. you can put a bore kit on there. upgraded cam's, etc.
first of all i dont know why you would want to destroy a dirt bike,but if you want to take it apart its the easeist way