162fmj Engine - Service Manual

Engine 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 162fmj Engine Service Manual

Step 2: Cylinder Head Removal (Section 3)

• Manual Command: Loosen 4 head bolts in a criss-cross pattern, 1/4 turn at a time.
• Torque Spec from 162FMJ manual: 25–28 Nm for final installation.
• Common error: Using a car manual that says 35 Nm, resulting in pulled threads.

Air Filter: Inspect and clean regularly to prevent debris from entering the cylinder. Manual Command: Loosen 4 head bolts in a

and Zongshen. It is widely used in commuter motorcycles, dirt bikes, and ATVs due to its simple overhead valve (OHV) design and reliability. 1. Core Technical Specifications Air Filter : Inspect and clean regularly to

When reassembling, ensure you check the oil bleed screw on the valve cover to confirm top-end oil pressure before running the engine at high RPMs.