It more than likely does not have one. Rarely does a dirt bike have an oil filter. Your owner's manual will list the location if it has one.
if you have a 4stroke dirt bike you run straight gas ,if you have a 2stroke dirt bike you run mixed gas
3.37hp? that cant be a dirtbike. its problably a little poket bike or somthing, but im assuming about 20mph
A 90cc are 125cc 4stroke
Depends on weight/height. At thirteen I rode a 125 4stroke trail bike and an 85 two stroke racebike
Most vin numbers are located on the right side if the head tube.
The same as a street bike. On the right handlebar.
just buy one
A dirt bike uses a foam filter (some filters have a second coarse outer layer) over a plastic frame. The plastic frame keeps the filter stretched tight around the air intake for the carb. The foam filter is oiled lightly and dirt and particles stick to the oil on the outside of the filter.
Bad fuel, dirt in the fuel filter, dirty air filter.
you do not have to have a dirt bike liscense dumbazz
On most bikes, it is located on the steering head tube.
There is not a single dirt bike sportsman who is credited for inventing dirt bike tricks. A lot of dirt bike riding is freestyle.