Description:52cc 45cm58cc 50cmRated output power: 2600w Speed: 7500rpm Idle/High Speed: 3000/11500rpm Gasoline oil mixture ratio: 25:1 Fuel tank volume: 550ml Engine tank volume: 260ml Chain pitch: 0.325 inches 1. High power, low fuel consumption, no engine stalling, no cylinder pulling, easy to start, sharp and wear-resistant; 2. High power load, fast cutting, time-saving and labor-saving; 3. Low fuel consumption carburetor, dual copper nozzle disc film technology, ensuring full combustion of fuel; 4. High temperature resistance without extinguishing, increasing the heat dissipation holes to quickly cool down; 5. High strength non pulling cylinder, durable and long-lasting; 6. Easy to start and rebound quickly, with built-in steel bar springs for flexible and fast rebound; 7. High quality guide plate chain, high-strength integrated guide plate, long service life, high-temperature quenched chain, sharper and more wear-resistant; 8. Thickened brake pads effectively protect hands, and can be quickly braked by pushing forward; 9. U-shaped handle, comfortable grip, anti slip, shock-absorbing and durable; 10. Cotton yarn filter screen, dustproof and noise reducing, improves work efficiency; 11. Triangle shock absorption technology reduces vibration during cutting to ensure smooth operation of the machine; Usage skills Adding engine oil: The main function is to lubricate the chain to reduce wear on the chain and serrations, so it can only work after the engine oil is sprayed out. Add gasoline: The mixture ratio of gasoline to engine oil is 25:1 (the engine oil must be two-stroke engine oil) Fuel mixing method: Find the side of the mixing pot with a ratio of 25:1, add engine oil and gasoline according to the parameters, cover the oil pot lid and shake evenly before use.