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Songwriters and producers Nick Atkinson, Edd Holloway & Rachel Furner sign with Gravity for management.
One of the hottest bands of 2014 choose Gravity for management.
In March of 2015, Alex Katter was nominated for Music Week’s ‘Industry Leader Campaign’.
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The Amazons release their debut single on Fiction, premiered by Zane Lowe on BBC Radio 1.
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The Amazons become tipped by BBC, Apple, MTV and more as the band to watch for 2017.
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When it comes to small-displacement horizontal engines, few powerplants have achieved the legendary status of the 162FMJ. Found beating at the heart of millions of motorcycles, ATVs, go-karts, and agricultural machines worldwide (most notably the ubiquitous Honda CG125 clones), this engine is praised for its simplicity, torque, and bulletproof reliability. However, even the toughest engine requires proper maintenance. That maintenance is impossible to do correctly without the 162FMJ Engine Service Manual.
In this deep-dive article, we will explore everything you need to know about the 162FMJ engine, why the official service manual is your most valuable tool, and how to use it to diagnose, rebuild, and optimize your engine.
The 162FMJ uses thin paper head gaskets. The manual explicitly states: "Replace cylinder head gasket and base gasket after every removal." Reusing them is the #1 cause of coolant leaks (on oil-cooled variants) or compression loss.
A genuine manual (usually in PDF form from manufacturers like Zongshen or Lifan) is structured into distinct chapters. Here is what you will find:
In the world of small-bore single-cylinder engines, few powerplants are as ubiquitous as the 162FMJ. This engine, a variant of the legendary Honda CG125 design, powers millions of motorcycles, ATVs, scooters, and agricultural machines across Asia, Africa, and South America. To the untrained eye, it is a simple assembly of metal, bolts, and wires. However, to a mechanic, its true potential is unlocked not by a wrench, but by a book: the 162FMJ Engine Service Manual.
This manual is far more than a collection of diagrams and torque specifications; it is the definitive authority on the engine’s anatomy, behavior, and longevity. It serves three critical roles: a diagnostic tool, a procedural guide, and a preserver of engineering tolerances.
First and foremost, the manual functions as a systematic diagnostic compass. The 162FMJ is a 149cc, air-cooled, four-stroke engine. When it fails to start, runs roughly, or loses power, symptoms can be misleading. A novice might immediately suspect the carburetor, while the manual directs the mechanic through a logical hierarchy: first check compression, then ignition timing, then fuel delivery. By providing standard values—such as a compression pressure of 9.5:1 or a valve clearance of 0.05mm for intake and 0.08mm for exhaust—the manual eliminates guesswork. It transforms vague noises and poor performance into measurable, solvable problems. 162fmj Engine Service Manual
Second, the manual is an exhaustive procedural guide for disassembly and reassembly. The 162FMJ is deceptively simple, yet it contains pitfalls for the careless. The manual clarifies the correct order for removing the camshaft sprocket, the method for aligning the "T" mark on the flywheel with the cam sprocket dot, and the sequence for torquing the cylinder head bolts. Without these instructions, a mechanic risks bent valves, jumped timing chains, or oil leaks. The manual’s step-by-step photographs and exploded-view diagrams demystify the engine’s internals, turning a daunting overhaul into a manageable task.
Third, and most crucially, the manual acts as the guardian of engineering tolerances. The 162FMJ is built to precise, cost-effective standards. Its service life—often exceeding 100,000 kilometers with proper care—depends on maintaining clearances that are measured in hundredths of a millimeter. The manual provides tables for piston-to-cylinder wall clearance, connecting rod big-end side play, and clutch spring free length. For example, a piston ring end gap of 0.15–0.35mm is acceptable, but anything beyond 1.0mm requires replacement. By adhering to these specifications, the mechanic prevents catastrophic failure and ensures that rebuilt engine performs as reliably as the original.
Beyond the technical, the manual holds pedagogical value. For the self-taught mechanic in a developing nation, it is often the only formal engineering education they will receive. It teaches fundamental principles: why oil viscosity matters (typically 15W-40 for the 162FMJ), how the CDI ignition system advances timing, and why a worn cam chain rattles on cold start. The manual democratizes knowledge, empowering anyone with basic literacy to maintain an engine that might be their family’s primary transport or livelihood.
Of course, the manual is not without limitations. It assumes access to specialized tools (flywheel pullers, feeler gauges, torque wrenches) and a clean workspace. Moreover, generic 162FMJ manuals may not account for minor variations across manufacturers (Lifan, Zongshen, Loncin). Nevertheless, even a generic manual is superior to tribal knowledge or online forums, which often propagate myths and shortcuts.
In conclusion, the 162FMJ Engine Service Manual is the silent partner in every successful repair. It transforms a heap of greasy components into a predictable, restorable machine. It respects the engine’s original design tolerances while providing the flexibility to diagnose real-world failures. For the professional mechanic, it is a reference bible. For the hobbyist, it is a teacher. And for the engine itself, the manual is the only thing standing between a long, useful life and an early, violent death. To work on a 162FMJ without its service manual is not mechanical work—it is archaeology. With it, it is engineering.
This essay explores the significance and structure of the 162FMJ engine service manual, an essential technical document for maintaining one of the most widely used small-displacement engines in the global motorcycle market. Introduction The Ultimate Guide to the 162FMJ Engine Service
The 162FMJ engine, a 150cc single-cylinder, air-cooled four-stroke overhead valve (OHV) powerhouse, is a staple of the "CG" engine family. Known for its remarkable durability and simplicity, it powers millions of commuter motorcycles and utility vehicles worldwide. However, even the most robust machinery requires precise maintenance. The service manual for the 162FMJ serves as the definitive roadmap for technicians and hobbyists, bridging the gap between mechanical intuition and manufacturer-specified precision. The Role of Technical Specifications
The cornerstone of any 162FMJ service manual is its detailed repository of technical specifications. This section moves beyond general descriptions to provide exact tolerances that are critical for engine longevity. Key data points typically include:
Valve Clearances: Ensuring the intake and exhaust valves open and close at precise intervals to prevent power loss or engine damage.
Torque Values: Providing specific Newton-meter (Nm) settings for head bolts and crankcase fasteners to ensure structural integrity without stripping threads.
Compression Ratios: Giving a benchmark for diagnostic testing to determine the health of piston rings and cylinder walls. Diagnostic and Maintenance Procedures
A service manual is fundamentally a "how-to" guide for troubleshooting and repair. For the 162FMJ, this often centers on the carburetor and ignition systems. The manual provides step-by-step instructions for: If you have any more details about the
Carburetor Tuning: Detailing the adjustment of the air-fuel mixture and idle speed to ensure optimal fuel efficiency and smooth throttle response.
Electrical Troubleshooting: Mapping the CDI (Capacitor Discharge Ignition) system and stator output to help users diagnose "no-spark" conditions.
Top-End Overhaul: Guiding the user through the removal of the cylinder head, inspection of the piston, and the critical process of "timing" the engine—ensuring the piston and valves are perfectly synchronized. Promoting Safety and Longevity
Beyond mechanical instructions, the 162FMJ service manual emphasizes safety and preventative care. It outlines strict intervals for oil changes, air filter cleaning, and spark plug replacement. By following these protocols, owners can extend the life of the engine significantly, reducing the total cost of ownership and preventing catastrophic failures on the road. Conclusion
The 162FMJ engine service manual is more than just a book of instructions; it is a vital tool for mechanical preservation. It empowers the user to perform complex repairs with confidence, ensures the vehicle operates within safe parameters, and honors the engineering design of the CG engine lineage. For anyone seeking to master the maintenance of their 150cc machine, the manual remains the most important component in their toolkit.
If you have any more details about the application of the 162FMJ engine or your specific needs, I might be able to offer more targeted advice.
