SEMTO ST-NF2 Mini Inline Twin Engine Assembly Set, 7.0cc Four-Stroke Metal Engine with Ignition Starter Accessories, Mechanical Hobby and Engineering Model

• 🔥【High Performance Engine Model,Four Stroke Operation,Dynamic Mechanical Output】This miniature internal combustion engine model features inline twin cylinders delivering smooth four-stroke operation with operating speed from 4000 to 16000rpm for realistic mechanical performance.
• 🛠️【Full Metal Precision Engineering,CNC Aluminum Build,Stable Mechanical Motion】Constructed from high-quality CNC machined metal components, the engine ensures excellent durability, stable rotation, and authentic mechanical detailing for advanced hobby builders.
• ⛓️【Dual Belt Timing Structure,Accurate Valve Control,Improved Reliability】The dual synchronous belt timing system reduces gear slip at high speed while the rocker arm mechanism improves valve precision and mechanical synchronization.
• ⚡【Integrated Starter Ignition Accessories,Electric Start Compatibility,Complete Running Setup】Includes ignition power module, F-Type electric plug, miniature fuel tank, and silicone oil pipe to provide reliable ignition control and electric starting support.
• 🎁【Premium Mechanical Collector Model,DIY Assembly Experience,Engineering Teaching Tool】This complete engine assembly set combines mechanical learning, technical display, and collectible mechanical artwork, ideal for enthusiasts and engineering demonstration.

F-Type Electric Plug for TOYAN FS-V800 Engine Model Specifications: .Material: Metal .Product Weight: 10g .Package Dimensions: 8 x 6 x 5cm .Package Weight: 15g .Packing: Blister Box 75ML Miniature Plastic Fuel Tank for TOYAN FS-V800 Engine Model Specifications: .Material: Plastic .Product Weight: 30g .Package Dimensions: 10 x 6 x 5cm .Package Weight: 40g .Packing: Bag Oil Pipe for TOYAN FS-V800 Engine Model Specifications: .Material: Silica Gel .Inner Diameter: 3mm .Outer Diameter: 5mm .Length: 50cm .Product Weight: 10g .Package Dimensions: 8 x 5 x 4cm .Package Weight: 15g .Packing: Bag 7.4-11.1V 3-in-1 Brush Start Ignition Power Module for Twin-Cylinder Engine Models Specifications: .Material: ABS + Electronic Components .Start Method: Brush Drive .Start Switch: Push-button Start Button .Power Supply Voltage: 7.4V-11.1V (Lipo 2S-3S) .Power Connector: T-Plug .Product Weight: 50g .Package Dimensions: 20 x 15 x 6cm .Package Weight: 55g .Packing: Bag .Ages: 14+ SEMTO ENGINE ST-NF2 7.0cc Mini Inline Double-cylinder Four-stroke Air-cooled Nitro Interal Combustion Engine Model Kit (Red) Specifications: .Color: Red .Material: Metal .Model: ST-NF2 .Form: Kit Version .Engine Type: Nitro Interal Combustion Engine Model .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 .F-Type Electric Plug * 1 .Fuel Tank * 1 .1*Oil Pipe .1*Ignition Power Module .1*Engine Model Kit .1*Instructions