Manual | 162fmj Engine Service
Common engine sizes: 124–125 cc (some labeled 120 or 125).
If you own a Chinese-made dirt bike, a utility ATV, or a commuter motorcycle like the Loncin, Zongshen, or Lifan 200cc, you have likely encountered the alphanumeric code 162FMJ. Stamped just above the drive sprocket, this code is more than a serial number; it is the blueprint for one of the most ubiquitous small-displacement engines on the market.
However, owning a 162FMJ engine without the corresponding 162FMJ Engine Service Manual is like flying blind. In this long-form article, we will dissect everything you need to know about finding, reading, and utilizing this manual to troubleshoot, rebuild, and modify your engine.
Since the 162FMJ is sold globally under dozens of brand names (Roketa, Coolster, Baja, Tao, Apollo), you may never find a perfect "factory" manual. Here is how to build your own master reference:
A high-quality service manual for this engine is typically between 80 and 150 pages. It is divided into logical chapters. When searching for a PDF or physical copy, ensure it contains these ten critical sections: 162fmj Engine Service Manual
Use the Honda Wave 125 (2002–2010) service manual – mechanically identical for 95% of repair tasks. If you need the exact Chinese clone manual, reply and I can describe the specific PDF title to search for.
The 162FMJ engine is a ubiquitous 150cc single-cylinder, four-stroke, air-cooled powerplant, often referred to as the
due to its heritage from the Honda CG series. This engine is widely utilized in motorcycles, dirt bikes, and utility vehicles manufactured by brands like Lifan and Zongshen. 1. Technical Specifications
Understanding these core data points is essential for any service or repair work. Specification Engine Type 4-Stroke, Single Cylinder, Air-Cooled (OHV/Vertical) Displacement 149.4cc — 150cc Bore x Stroke 62.0 mm x 49.5 mm Compression Ratio ~8.2 kW to 11 kW @ 8,500 RPM Max Torque ~9.8 Nm to 12 Nm @ 6,500–7,500 RPM Ignition Type Spark Plug Transmission 5-Speed Manual (1-N-2-3-4-5) Clutch Type Wet Multi-disc Oil Capacity Total: 1.1L (Change: ~1.0L) 2. Routine Maintenance Procedures Common engine sizes: 124–125 cc (some labeled 120
Regular maintenance is key to the longevity of these engines, which are designed for durability and ease of service. Alibaba.com Complete engine 150cc, 5 gears, 162FMJ 150 4T AC - Motor-X
A service manual for the 162FMJ engine (a common 150cc–162cc single-cylinder, 4-stroke, air-cooled unit used by brands like Zongshen and Lifan) typically focuses on detailed maintenance and repair procedures. Alibaba.com
One defining feature of a comprehensive 162FMJ service manual is: Detailed Valve Clearance Adjustment Procedures
Because the 162FMJ is often an OHV (Overhead Valve) engine, regular valve checks are critical for maintaining performance and preventing engine knock. A high-quality manual will include: Alibaba.com Step-by-Step Calibration : Specific instructions for setting the engine to Top Dead Center (TDC) on the compression stroke before measuring. Cold Clearance Specs : Precise measurement values, typically ranging from 0.05–0.08 mm for intake and 0.08–0.10 mm for exhaust. Visual Aids If you own a Chinese-made dirt bike, a
: Exploded diagrams or photographs showing the rocker arms and adjustment screws to help DIYers avoid common mistakes. Unofficial Royal Enfield Community Forum - Index Other Key Content Areas Maintenance Schedules
: Detailed intervals for oil changes (often every 1,000 km), air filter cleaning (every 1,500 km), and full spark plug inspections. Lubrication System Details : Specifications for the wet sump system
, including the use of 10W-40 or 15W-50 oil and instructions for checking the oil level via the sight glass. CDI Troubleshooting : Electrical diagrams and testing procedures for the Capacitor Discharge Ignition (CDI)
system, which controls precise spark timing for better combustion. Torque Specifications
: Comprehensive charts for all major fasteners to prevent damaging the aluminum engine housings. Alibaba.com or a list of required tools for servicing this engine? Complete engine 150cc, 5 gears, 162FMJ 150 4T AC - Motor-X