SEMTO Engine Model, ST-NF2 7.0 Mini Inline 2-Cylinder 4-Stroke Air-Cooled IC Engine Model Kit, DIY Assembly Educational Science Engine Set for Adults,New Year's Day Gifts

Come get your own engine model!Specifications:.Color: Silver.Material: Metal.Brand: SEMTO ENGINE.Model: ST-NF2.Form: Kit Version.Valve Mechanism: SOHC.Displacement: 7.0 (3.5*2)cc.Cylinder: Inline Double-cylinder.Stroke: Four Stroke.Cyilinder Diameter: 16.6mm.Stroke: 17.00mm.Speed: 4000-16000rpm.Power: 0.6ps.Cooling Mode: Air Cooling.Lubrication Mode: Mixed Oil Lubrication (add grease).Starting Mode: Electric.Ignition Mode: Ignition Modules (Not Included).Type of Electric Plug: F-type Four-stroke Electric Plug (Not Included).Starting Voltage: 7.4V 2S Li battery (Not Included).Fuel Type: 20-25% Nitro Fuel.Product Dimensions: 11.2 x 9 x 9.2cm.Product Weight: 535g.Package Dimensions: 14.5 x 11 x 11.2cm.Package Weight: 1000g.Packing: Graphic Carton.Ages: 14+Package Including.1*Engine Model Kit.1*Instructions

• 【High Simulation】The engine model with a realistic appearance and red sport elements meaning thunderbolt movement is closer to a real engine. Treated by aluminum CNC processing and oxidation coloring, the delicate engine features a meticulous surface, compact structure and lightweight body
• 【Outstanding Performance】The timing structure of a dual synchronous belt pulley greatly reduces the risk of gear jumping in high-speed operation. The short rocker arm makes the valve switch operation more accurate. Enjoy easier adjustment and more sensitive throttle response thanks to the brand-new signal carburetor
• 【Electrical Starting】Equipped with a high-torque 480 brush DC motor for a more convenient and smooth start. Adopts asynchronous crankshaft structure for strong power, smoother operation and a max speed of up to 16000rpm
• 【Wide Applications】Blending perfectly with a gearbox for superior compatibility and an excellent guarantee to upgrade, the product makes a stunning mechanical artware, an ideal gift for mechanical engine enthusiasts and a superb teaching aid for demonstration teaching in physical&mechanical classes. So many of our clients are teachers from schools
• 【Note】Starting Ignition set is not included, please prepare or buy it by yourself. If you have any questions about the product, please contact us in time