Goofit Single Pulse Generator (Ignition Sensor) For Honda CRF250R / CRF250X Motocross Original Part Number: 31100-KSC-671 Crankshaft Position Sensor

【Special Crankshaft Position Sensor for Honda CRF250 Off-Road】This single-pulse sensor (crankshaft position sensor) was specifically designed for the Honda CRF250R (Competition version) and CRF250X (Trail version) off-road motorcycles. It meets original Honda specifications and is identical to the original part number 31100-KSC-671. Its robust, shockproof, dustproof, and waterproof housing is specifically designed to withstand the extreme vibrations, mud, and high temperatures encountered in professional off-road use. It precisely monitors the crankshaft position and provides the necessary pulse signal to the engine control unit (ECU) or ignition system (CDI) to determine the ignition timing. This is a crucial component that ensures reliable starting and responsiveness of a high-revving single-cylinder engine under demanding conditions. [Exact Match with Original Part Number and Model] This product directly replaces part number 31100-KSC-671 and is specifically designed for certain model years of Honda CRF250R and CRF250X models that use this part. (*Note: This product is fully compatible with original part number 31100-KSC-671. Please check the part number in your vehicle manual, on the old original parts, or using the Vehicle Identification Number (VIN) before purchasing to ensure a perfect match. Because Honda parts are frequently updated, part numbers may vary depending on the model year. Checking the old part number is the most reliable method.*) [Troubleshooting ignition problems on [off-road vehicles] Replacement for original sensors damaged by severe vibration. Short circuits in the ignition coil due to moisture, magnet failure, or thermal aging can be effectively resolved with this product: engine stalling (no ignition signal), starting difficulties requiring multiple attempts, rough idling and frequent stalling at low RPMs, sudden power losses under heavy load (e.g., after inclines or jumps), and power loss due to incorrect ignition timing. [Professional Installation and Air Gap Requirements] This product is a precision electromagnetic component. It is typically mounted on the side cover of the engine casing or near the ignition system and works with the flywheel trigger teeth. For successful installation, precise adjustment of the air gap between the sensor head and the flywheel trigger teeth is critical. This air gap must be set with extreme precision (typically 0.5 mm ± 0.1 mm) and adjusted using a non-magnetic feeler gauge (plastic/brass) according to the Honda Service Manual. An incorrect air gap is the most common cause of malfunctions. [Scope of delivery] 1 trigger pulse sensor