The gear box can NOT be filled with any gearbox oil. The gears use calcium grease lubricant and is already filled by factory. The engine is with air-forced cooling system so it's doesn't matter which direction the engine end goes to. Air filter goes in front or rear are both OK. Just please pay attention to the rotation of engine and output sprocket.
The sprocket rotates in opposite direction with engine. When you face the clutch pad and sprocket side, the engine rotates anti-clockwise, but the output sprocket rotates clock-wise. Specifications: 49cc single cylinder, air-cooled, 2-stroke Fuel: 25:1 gasoline / engine oil mix Piston Diameter:40mm Displacement:49cc Gear Box Reduction Rate: 3.55 : 1 Start Way: pull start Cooling: Air forced cooling Sprocket Size: 20 teeth fit T8F chain Spark Plug Size: L7T L7TC Top Mounting Brackets: 11cm Bottom Mounting Brackets: 10.3cm Top Through Hole Diameter M. 0.161 Bottom Through Hole Diameter M.
0.245" Exhaust Diameter: 0.589" Connector: 2 Pin Length: 26cm Width: 31cm Height: 20cm Clutch Mounting Hole Distance: 7.3cm Clutch Mounting Hole Diameter: 0.289" Clutch Pad: 2 Shoe Carburetor Hole Diameter: 0.213" Pull Start Mounting Hole Distance: 7.3cm Weight: 4.5KG Fit: Majority of gas scooters, pocket bikes, and mini choppers Mini Quad Kid ATV Complete 49CC 2 Stroke Engine for Pocket Bike, Mini Dirt Bike, ATV or Scooter Always wanted to finish that project but couldn't find a small compact, but powerful motor? Wanting to upgrade that slow and old 43cc engine to a new and larger capacity 49cc engine to blow away the competition? Then this item is what you need! The item "Engine 49cc with Gear Reduction Transmission Pocket Bike Gas Scooter Mini ATV" is in sale since Tuesday, August 28, 2018.
This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Complete Engines". The seller is "dafangx" and is located in GuangZhou. This item can be shipped worldwide.