N090-048 Carburetor for 2-stroke 43cc(40-5) & 49cc(44-5) Pocket Bike. The item fits for 2-stroke 43cc(40-5) & 49cc(44-5) Engine.The diameter connected with air intake:15mm The diameter connected with air filter:17mmBolt hole spacing:32mmBRAND NEW PRODUCTS.BEST QUALITY GUARANTEED.