Spark Plug: Standard model is A7RTC (Resistor type). NGK equivalent: CR7HSA.
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Lifan 1P54FMI Service Manual: A Comprehensive Guide to Maintaining Your Motorcycle Lifan 1P54FMI — Service Manual Content (structured outline
Understanding the baseline specs is the first step in any service procedure. Specification Engine Type Single-cylinder, horizontal, 4-stroke, air-cooled Displacement ~124cc (Actual: 123.7cc) Bore x Stroke 54mm x 54mm (standard for 1P54FMI) Compression Ratio 9.0:1 to 9.47:1 Maximum Power ~8.7 to 8.9 HP @ 7,500–8,000 RPM Ignition Electronic CDI Spark Plug NGK C6HSA or A7TC (Gap: 0.6–0.8mm) Transmission 4-speed manual (usually 1-down, 3-up or All-up) 2. Essential Maintenance Procedures Oil Service Model: Lifan 1P54FMI (50–125 cc single-cylinder