8-Pin FS300 CDI Box for 250cc 300cc Scooters ATV 170MM 173MN Engines

Product Overview

Restore smooth ignition performance and eliminate misfires with this FS300 8-pin CDI unit. Designed for 250cc–300cc liquid-cooled engines, it delivers precise ignition timing and a strong, stable spark for reliable starting and consistent power output.

Built with high-quality internal capacitors and durable housing, this CDI ensures stable operation under high temperatures and long-distance riding conditions. Its plug-and-play design makes installation fast and hassle-free, ideal for both replacement and performance restoration.

Product Compatibility

Category	Model / Platform	Engine Type	Notes
Yamaha	Majesty 250 (YP250)	250cc Liquid-Cooled	8-pin CDI
Yamaha	X-Max 250 / X-City 250	250cc Liquid-Cooled	Compatible
Yamaha	Versity 300	300cc Liquid-Cooled	Compatible
Chinese Scooters	Roketa / Xingyue / Linhai	250cc–300cc	170MM / 173MN engines
Vehicle Type	Touring Scooters / ATVs / Quads	4-Stroke Liquid-Cooled	8-pin configuration

Specifications

Item	Details
Model	FS300 CDI
Pin Configuration	8-Pin
Engine Type	4-Stroke Liquid-Cooled
Displacement Range	250cc–300cc
Mounting Hole Distance	85mm (3.34")
Overall Length	84mm (3.3")
Material	Heat-resistant reinforced housing
Installation	Plug-and-play

Key Features

• Stable Ignition Output – Ensures consistent spark for smooth engine performance
• Precision Timing Control – Optimized for 250cc–300cc engines
• High-Quality Capacitors – Improves ignition efficiency and reduces misfires
• Rugged Construction – مقاust to heat, vibration, and long-distance riding
• Direct Plug-and-Play – Easy installation with 8-pin OEM-style connector