162fmj Engine Service Manual !!better!! -

15W-40 or 10W-40 (Depending on ambient climate).

Incorrect clutch lever freeplay, worn friction plates, or use of automotive engine oil containing friction modifiers.

Detailed diagrams of the OHV rocker arm assembly. This section shows you how to remove carbon deposits from the combustion chamber without damaging the 62mm bore cylinder walls.

The is a highly popular, Chinese-manufactured 150cc single-cylinder, 4-stroke, air-cooled vertical motorcycle engine . Produced heavily by top manufacturers like Lifan, Shineray, and Loncin , this engine is built around the timeless Honda CG125/CG150 pushrod (OHV) blueprint. Because it relies on a rugged pushrod and rocker arm setup rather than an overhead camshaft (OHC), it is known across the globe for being exceptionally reliable, cheap to maintain, and highly resilient in harsh utility environments.

A genuine manual (usually in PDF form from manufacturers like Zongshen or Lifan) is structured into distinct chapters. Here is what you will find: 162fmj Engine Service Manual

Readjust the idle speed screw to bring the engine back down to 1,400 RPM. 6. Torque Specifications Guide

Turn the fuel/air pilot screw slowly inward (clockwise) until the engine RPM begins to drop or stumble.

Loosen the locknut with a 10mm wrench, turn the adjuster square-head pin until you feel a slight drag on the feeler gauge, and tighten the locknut while holding the pin steady.

Remove the three small Phillips-head screws holding the centrifugal filter outer cap. 15W-40 or 10W-40 (Depending on ambient climate)

SAE 10W-40 or 15W-50 (API Service SE, SF, or SG) Valve & Cylinder Tolerances Intake Valve Clearance (Cold): 0.05 mm to 0.07 mm Exhaust Valve Clearance (Cold): 0.05 mm to 0.07 mm Cylinder Compression: 1000–1400 kPa (145–200 psi)

Provide these details, and I can give you exact diagnostic steps or step-by-step instructions. Share public link

Hold the adjusting stem firmly in place and torque down the locknut.

Remove the alternator cover and turn the crankshaft to Top Dead Center (TDC) on the compression stroke. Adjust Valve Gap: Use a feeler gauge. Intake Valve: 0.03-0.05 mm Exhaust Valve: 0.05-0.07 mm Tighten: Ensure the locknut is secure. C. Carburetor Tuning (PZ26/PZ27/PZ30) This section shows you how to remove carbon

When reassembling the cylinder head, use a torque wrench. Cylinder head bolts should be tightened in a cross-pattern to roughly 25-30 N ⋅ m. Conclusion

Because the 162FMJ typically does not use a paper oil filter, it relies on a internal centrifugal filter and a wire mesh screen. Change the oil every 1,000 to 1,500 kilometers (approx. 600 to 900 miles).

The is a cornerstone of the global small-displacement motorcycle market, particularly in Asia and Latin America. A service manual for this engine serves as more than just a repair guide; it is a blueprint for the maintenance and longevity of a machine designed for extreme durability and efficiency. Known commonly as a 150cc–162cc single-cylinder, four-stroke, air-cooled engine, the 162FMJ powers everything from urban commuters and delivery bikes to off-road pit bikes and utility vehicles. Technical Foundation and Specifications