Best current price£894.31from eBay
Shopping.co.uk recommended and popular offers
eBay£894.31Visit shop ATHENA Cylinder Kit 144cc-Ø58mm Kawasaki kx125 for Moto Spare Parts Accessories
Visit shop3 offers from £894.31 - £972.99
View price history by clicking the chart icon.
This Athena Big Bore Race Cylinder Kit is designed for Kawasaki KX125 motorcycle owners (2003-2007) seeking a significant performance upgrade. Its primary benefit is enhanced engine power through increased displacement and optimized components. A key consideration is that it requires specialized, high-performance power valves and cannot utilize OEM parts. The kit features an aluminum cylinder with a nickel carbide coating, an aluminum cylinder head with a removable bronze dome, a high-performance piston kit, and a complete top-end gasket set.
| Model Part Number | P400250100011 |
|---|---|
| Brand | Athena |
The primary benefit is a significant increase in engine power and torque due to increased cylinder displacement.
No, this kit requires specially designed, high-performance power valves and is not compatible with OEM power valves.
This kit is designed for the Kawasaki KX125 models from 2003 to 2007.
Yes, the kit includes a complete piston kit with a cast lite flat top piston, rings, clips, and pin.
You will need to acquire the specially designed high-performance power valves. Depending on your tuning goals, carburetor jetting may also need adjustment.
This kit is designed for race applications and may not be suitable or legal for street use. It is intended for closed-course competition.
Refer to the specific break-in instructions provided by Athena with the kit. Typically, a break-in period involves moderate riding and avoiding full throttle for a set duration and mileage.
Verify correct installation of power valves, check for air leaks in the intake system, and ensure proper carburetor jetting for the increased displacement.
Check coolant levels (if liquid-cooled), ensure proper airflow to the cylinder, and verify the carburetor is not running too lean. Consider radiator upgrades if necessary.
Verify correct oil-to-fuel ratio (if premix) or proper operation of the oil injection system. Check for any oil leaks into the combustion chamber.
Check spark plug condition, ensure proper fuel delivery, and verify compression is adequate. Re-check installation of all components, especially the cylinder head and base gaskets.
Setup: Installation of the Athena Big Bore Race Cylinder Kit requires careful attention to detail. It is crucial to follow the manufacturer's specific torque specifications for all fasteners. Due to the performance nature of the kit, it is highly recommended to have the installation performed by a qualified motorcycle mechanic experienced with high-performance engines. Proper break-in procedures, as outlined by Athena, must be followed to ensure the longevity of the new components.
Compatibility: This kit is specifically designed for Kawasaki KX125 models from 2003 to 2007. It is critical to note that it requires the use of specially designed, high-performance power valves and is *not* compatible with OEM power valves. Ensure all other engine components are in good working order and compatible with the increased performance.
Care: Regular maintenance is essential for optimal performance and durability. This includes frequent checking and cleaning of the air filter, ensuring proper fuel and oil mixtures (if applicable), and monitoring for any unusual engine noises. The nickel carbide coating on the cylinder is durable but should be inspected for wear during regular engine servicing. Use only high-quality fuel and lubricants recommended for high-performance two-stroke engines.
