BTEB Motorcycle Servicing study plan

Label every major component of a four-stroke engine on a hand-drawn cross-section diagram (cylinder, piston, rings, con-rod, crankshaft, camshaft, valves, timing chain) and state each part's function in one sentence.

Explain the four strokes (intake, compression, power, exhaust) in writing, naming valve positions and piston direction at each stage, plus the role of valve clearance and cam timing.

Compare two-stroke and four-stroke operation in a written table covering ports vs valves, lubrication path, power strokes per revolution, and typical applications in motorcycles.

Describe the cooling and lubrication paths of an air-cooled and a liquid-cooled engine, tracing oil from sump to camshaft and coolant from radiator to jacket.

Sequence the steps of a top-end overhaul (dismantle, inspect, measure, replace, reassemble, torque) and justify the order of each step.

Measure cylinder bore, piston diameter, ring end gap, and valve stem clearance with the correct instruments and record readings against service limits.

Diagnose three given symptoms (blue smoke, low compression, tapping top-end noise) and trace each to at least two plausible causes with a test to confirm each.

Calculate compression ratio from swept and clearance volumes and explain how carbon buildup or a worn ring changes the result.

Trace the fuel path from tank through petcock, filter, carburetor circuits (pilot, main, needle, float) to the combustion chamber, and explain what each circuit controls at idle, mid-range, and full throttle.

Perform carburetor tuning steps in the correct order (float level, idle mixture, idle speed, needle position, main jet) and explain why order matters.

Use a vernier caliper, micrometer, feeler gauge, and dial gauge on practice parts and record readings to the correct precision.

Explain the ignition system's role in combustion timing: identify coil, CDI/ECU, pickup, and spark plug, and describe how ignition advance relates to engine speed.

Describe the lubrication system's flow, name the oil grades and API/JASO ratings suitable for a small motorcycle, and state the correct interval and method for an oil and filter change.

Explain air-cooling versus liquid-cooling maintenance: fin cleaning, coolant mix ratio, thermostat and radiator cap function, and signs of overheating.

Execute a full engine tune-up checklist (valve clearance, spark plug gap and condition, air filter, idle speed and mixture, timing check) on a practice machine.

Interpret spark plug reading (electrode color, deposits) and state what each pattern indicates about mixture and heat range.

Identify clutch types (wet multi-plate, centrifugal, dry) and explain the power flow from crankshaft through clutch, gearbox, and final drive for chain and belt systems.

Measure clutch plate thickness, spring free length, and chain slack, and compare each to service limits.

Explain how a manual and a CVT transmission change ratio, and describe the symptom-to-cause link for clutch slip, drag, and chain noise.

Describe brake system operation for drum and disc types and perform a brake inspection: pad or shoe wear, disc thickness, fluid level, cable or lever free play, and bleeding sequence.

Explain front fork and rear shock absorber construction and adjustment (preload, damping) and describe how worn fork oil or seals change handling.

Check steering head bearing free play and front/rear wheel alignment, and state the effect of each on stability.

Describe battery construction, ratings (Ah, CCA), charging circuit operation (stator, regulator/rectifier), and the correct charging and testing procedure.

Trace a simple lighting and starting circuit on a wiring diagram and diagnose a no-crank fault using a multimeter in the correct sequence (battery, fuse, switch, relay, starter).

Identify workshop hazards (fuel vapor, hot exhaust, rotating parts, battery acid, lifting) and state the control for each, including PPE selection and fire extinguisher class for fuel and electrical fires.

Demonstrate correct and safe use of hand tools: correct spanner sizing, torque wrench setting and storage, lift and jack placement, and safe fuel handling and storage.

Explain ventilation, spill containment, and waste oil and battery disposal requirements, and describe first aid for acid splash and fuel on skin or eyes.

Set up a workstation to a written checklist: lighting, ventilation, tool layout, fire extinguisher, and machine support.

Build a periodic maintenance schedule (daily, weekly, 1000/4000/8000 km) listing each check, the tool needed, and the acceptance criterion.

Apply a structured troubleshooting method (verify symptom, gather information, form hypothesis, test, confirm repair) to three case scenarios spanning engine, electrical, and drive faults.

Write customer-facing explanations of two repairs in plain language, including what was found, what was done, cost factors, and preventive advice.

Complete two timed mixed-domain practice sets and review every wrong answer to its source domain.