253fmm Service Manual Jun 2026

Primarily air-cooled, though some liquid-cooled variants exist. Displacement: ~224cc to 250cc. Bore and Stroke: 53mm x 53mm. Compression Ratio: 9.2:1. Max Power: Approximately 12.5 kW (~17-20 hp) at 8,500 RPM. Ignition: Capacitor Discharge Ignition (CDI). Starting: Electric and/or kick start. Essential Maintenance Schedule

of approximately 53mm x 53mm, totaling a 233cc-250cc displacement. It typically utilizes a twin-cylinder configuration 253fmm service manual