40:1 is the mixture of gas to 2 stroke motor oil (only)
What's does the fuel valve do on a 49cc dirt bike
You need to run one gallon of gas with 4 ounces of two stroke oil.That is a ratio of 32:1.
If your 2 stroke dirt bike starts to smoke really bad that means you have to much oil in the fuel or the wrong kind of oil. Or the pistons, oil rings or cylinders are badly worn.
sounds like a bad head gasket possibly
what is the fuel and oil mixture for a kx 250, 2 stroke
It's how the engines work. for the same amount of power, a 2-stroke will be lighter, smaller and rev higher. It'll also use more fuel and pollute more. A 4-stroke will run cleaner and more efficiently. It'll make more torque but won't rev as high.
No, the intake stroke pulls fuel-air into the cylinder, the compression stroke squeezes (compresses) this mixture into a small volume.
A 2-stroke dirtbike will be powered by a 2-stroke engine and a 4-stroke dirtbike will be powered by a 4-stroke engine. For the same power, the 2-stroke will be a lighter bike. For the same weight, the 4-stroke will be a weaker/slower bike. The 2-stroke is likely to use more fuel and make more noise. The 4-stroke will run cleaner and quieter.
yes all Yamaha dirt bikes are fuel injected