Note that there are two filler caps on your saw, near the throttle handle. The caps may be labeled, and often the larger cap will be for fuel, and the smaller for bar lubricant. Fill the bar lube tank, check both caps to ensure that they are tightly installed, and place the saw on a flat surface. This is especially important for cranking very large saws, since the blade will commence turning as soon as the saw starts and revs up.