J250/300 Lower Suspension
Motorcycle engine is the fuel mixture into the cylinder ignition so that its combustion of thermal energy into mechanical energy
Max Power
16.5/17.5kW
Max Torque
23.5/25N.m
E-mail: 215889394@qq.com
Phone:+86-0576-82899099
J250/300 Lower Suspension
Motorcycle engine is the fuel mixture into the cylinder ignition so that its combustion of thermal energy into mechanical energy
Accept customization
Place of Origin: Hebei, China
Brand Name: DSX
Logo: Custom logo
Sample: Available
Sample time: 5-7 Days
Design: ODM Designs
Max Power
16.5/17.5kW
Max Torque
23.5/25N.m
E-mail: 215889394@qq.com
Phone:+86-0576-82899099
Motorcycle engine is the fuel mixture into the cylinder ignition so that its combustion of thermal energy into mechanical energy, and by the crankshaft will be the power through the transmission mechanism to the rear wheel of the motorcycle and become the vehicle driving power of the machinery. Motorcycle engine has the advantages of small inertia force, small vibration, low noise and so on. Motorcycle power plant are used in the internal combustion engine; the use of diesel fuel engine is customarily referred to as diesel engines, while the use of gasoline as fuel engine is called gasoline engines. Because gasoline engine has the advantages of light weight, small size, noise, low vibration, easy starting and low cost, etc., so motorcycles commonly use gasoline engine as its power unit.
Functional Features
● Integral cylinder head and roller rocker arms: The integral cylinder head enhances the stiffness of the camshaft bearing bracket, ensuring more stable coordination among the valve-train components; at the same time, assembly accuracy is improved, reducing abnormal noises and vibrations, thereby delivering smoother and quieter engine operation. The use of roller-bearing rocker arms significantly reduces friction on the cam lobe contact surfaces, lowering mechanical losses and extending the service life of both the rocker arms and the camshaft.
● Secondary oil filtration: The secondary filtration system components further filter the oil after it has undergone primary filtration, thereby ensuring the engine’s durability and reliability.
● Advanced camshaft pressure-reducing valve technology—highly efficient and reliable. Featuring a brand-new camshaft pressure-reduction mechanism, this design delivers significantly improved pressure reduction, durability, and reliability. It makes starting easier and faster while effectively extending the service life of the starter motor and battery.
● Piston Spraying Technology: An innovative technological advancement that enhances efficiency. This new engine piston spraying cooling system uses a spray-based approach to cool both the piston and the piston pin, significantly improving the cooling performance of these critical components.
External characteristic curve chart
Installation Diagram
Technical Specifications
| Engine model | JL169MM-5(J250) | JL173MN-5(J300) |
| Engine Type | Horizontal, single-cylinder, four-stroke, water-cooled, 4-valve | Horizontal, single-cylinder, four-stroke, water-cooled, 4-valve |
| Cylinder diameter | 69 millimeters | 72.5 millimeters |
| Piston stroke | 66.8 millimeters | 66.8 millimeters |
| Total displacement | 249.8 milliliters | 275.8 milliliters |
| Compression ratio | 10.3:1 | 10.2:1 |
| Maximum power and corresponding speed | 16.5kW/8000rpm | 17.5kW/8000rpm |
| Maximum torque and corresponding speed | 23.5N.m/5000rpm | 25N.m/5000rpm |
| Minimum no-load stable speed | 1700 ± 100 rpm | 1700 ± 100 rpm |
| Net weight | 45 kilograms | 45 kilograms |
| Outer packaging dimensions (length × width × height) | 875*510*358 millimeters | 875*510*358 millimeters |
| Transmission method | Continuously Variable Transmission | Continuously Variable Transmission |
| Starting method | Electric start | Electric start |
| Ignition method | ECU | ECU |
| Fuel consumption per 100 kilometers | 3.0 liters | 3.2L |
| Compatible with rear wheel specifications | 12"/13" | 12"/13" |
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J250/300 Lower Suspension
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Add:No. 1111 , Jinlin Road ,Jinqing Town, Luqiao District, Taizhou City,Zhejiang Province. China.
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