Hyper Bore Up Kit 305cc CRF250L CRF250 Rally

【SP武川 01-05-0631 Hyper Bore-Up Kit 305cc for CRF250L CRF250 RALLY Engine Parts Takegawa】
■Product Description
The Hyper Bore-Up Kit is a great value kit that includes a 305cc bore-up kit, a sport camshaft that brings out the performance of the stock cylinder head, and an FI Con2 (injection controller) that eliminates fuel mixture deviations and maximizes the performance of the bore-up kit and sport camshaft.

■Detailed Description
●Bore-Up Kit 305cc
This bore-up kit allows you to increase the displacement to 305cc by changing the cylinder and piston.
The cylinder uses an all-aluminum ceramic-plated cylinder with excellent durability, airtightness, and heat dissipation.
The cylinder shape has been changed from the open-deck manufacturing method of the stock cylinder to a closed-deck manufacturing method, increasing the rigidity of the cylinder.
In addition, by increasing the capacity of the cylinder water jacket, it protects the engine from overheating.
The cylinder's oil line is equipped with an oil jet mechanism that directly injects oil into the cylinder, enhancing piston cooling and lubrication.
The cylinder body has service holes for attaching temperature sensors for water temperature and oil temperature gauges.
Applicable temperature sensor: PT1/8
Forged Piston: By adopting a special forged material used in racing engines, lightweighting is achieved while maintaining strength.
Bore diameter 84mm. Compression ratio 13.0:1.
●FI Con2 (Injection Controller)
This is an injection controller uniquely developed by SP Takegawa that does not require tedious data input via a computer, etc., and allows easy setting changes by switching the rotary switch on the main unit.
It has various built-in 3D correction maps set according to SP Takegawa custom parts, and can be set according to the vehicle's specifications.
It also has an increase/decrease function that allows fine adjustment of the built-in correction map to be generally richer or leaner using the rotary switch on the main unit.
FI Con2 not only corrects the fuel injection amount but also has a rev limiter cut function.
Rev limit RPM when bore-up kit is installed: 11000rpm
FI Con2 comes with a dedicated harness COMP., and the FI Con2 main unit can be stored in the keyed toolbox on the left side of the vehicle body.

■Compatible Models
HONDA
CRF250L (MD44-1000001～)
CRF250 RALLY (MD44-1000001～)
*Cannot be installed on CRF250L (MD38).
*CRF250M is not supported as FI Con2 operation has not been confirmed.

■Precautions
*The image is for illustration purposes only. It includes products with different sizes and colors.
*Product design and specifications are subject to change without notice. Please understand.
*Since the displacement will be 250cc or more, it cannot be used on public roads. It is for closed course use only.
*The rev limit RPM of the genuine ECU can be exceeded, but since this is a usage method that exceeds the manufacturer's genuine rev limit, please use it at your own risk.
*FI Con2 has only been confirmed to operate on vehicles officially sold as Japanese specifications. We have not confirmed compatibility with parallel import vehicles.
*FI Con2 (05-04-0040) is for CRF250L (MD44) and CRF250 RALLY (MD44).
*Do not install H.I.D. and other company's LED headlights at the same time, as they generate high voltage noise that can adversely affect digital circuits.
*Do not install aftermarket ignition devices at the same time, as increased ignition voltage can lead to increased radiated noise, causing malfunction or product failure.
*This product is made to order, so cancellations after ordering are not possible.
*As this is a made-to-order product, it may take some time for delivery. Also, please note that the manufacturer may discontinue the product or change its specifications without prior notice. Thank you for your understanding.