110cc 125cc Motorcycle Engine With CDI Ignition For Lifan Monkey Bike
Designed as OEM-grade replacement/repair engines for Lifan Monkey Bikes (and compatible models like Tunisia 110cc Engine Forza Motorcycle), our 110cc (107ml nominal displacement) and 125cc engines combine reliability, efficiency, and versatility. Built around a single-cylinder, 4-stroke, air-cooled configuration-paired with advanced CDI ignition technology-they deliver consistent performance for daily commuting and recreational riding, while supporting easy installation and long-term durability.
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Specification Category |
Details (110cc Model: 152FMH) |
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Engine Model |
152FMH |
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Engine Type |
Single-cylinder, 4-stroke, air-cooled |
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Displacement |
107ml (110cc nominal); 125cc variant available (OEM-compatible) |
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Bore × Stroke |
52.4mm × 49.5mm (optimized for balanced power and fuel efficiency) |
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Compression Ratio |
9.0:1 (ensures stable combustion and low wear) |
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Power & Torque |
Rated power: 4.7kW / 8000r/min; Maximum torque: 6.9N·m / 5500r/min (110cc model) |
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Ignition & Start System |
CDI ignition (precise spark timing for smoother acceleration); Dual start: Electric + Kick |
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Lubrication & Transmission |
Pressure + Splash lubrication (prevents dry friction); 4-speed rotary transmission |
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Fuel Efficiency |
Minimum fuel consumption: ≤367g/kW·h (cost-effective for long-term use) |
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Idling Speed |
1500±150r/min (stable idle, reducing engine strain) |
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Appearance & Brand |
Silver White finish (adds aesthetic value); Brand: SW |
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Warranty |
3-month base warranty; 12-month warranty option available (varies by configuration) |


Key Selling Points (Backed by Design & Specifications)
1. OEM Compatibility & Replacement Focus
As an OEM new engine assembly, it is engineered for direct fitment with Lifan Monkey Bikes and compatible models (e.g., Tunisia 110cc Engine Forza Motorcycle), eliminating the need for complex modifications during replacement/repair-ideal for mechanics and DIY users.
2. Balanced Performance & Efficiency
The 4-stroke air-cooled design reduces vibration and maintenance needs (no coolant system), while CDI ignition ensures precise spark timing-boosting acceleration smoothness and lowering fuel consumption (≤367g/kW·h). The 4-speed rotary transmission further optimizes power delivery for different riding scenarios (city streets, light off-roading).
3. Durability & Structural Reliability
With a 9.0:1 compression ratio (reduces cylinder pressure strain) and pressure-splash lubrication (ensures full-component oil coverage), the engine resists wear and heat during prolonged use. The single-cylinder structure simplifies maintenance, while high-quality materials meet OEM durability standards.
4. Customization & Aesthetic Value
Accepts OEM customization to match specific brand or model requirements. The Silver White exterior adds a stylish touch to the vehicle, balancing functionality with visual appeal-catering to motorcycle enthusiasts seeking both performance and aesthetics.


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