Lesson 1Wheels, tyres, and braking systems (rims, hubs, disc rotors, calipers, pads)This part explains wheel setups, tyre choices, and braking parts. You will learn how rims, hubs, rotors, calipers, and pads are described, checked, stored, and made ready for safe fitting.
Rim and hub types, sizes, and specsDisc rotor sizes, offset, and fittingCaliper designs, fitting styles, and partsBrake pad materials, wear limits, and codesTyre sizing, load ratings, and speed marksWheel, tyre, and brake storage and markingLesson 2Electrical system components (battery, wiring harness, ECU, ignition, lighting, fuses)This part explains the electrical system, from power source to lights. You will learn how the battery, harness, ECU, ignition, and safety devices are described, marked, and arranged for putting together and checking.
Battery types, ratings, and fitting hardwareMain wiring harness branches and connectorsECU position, fitting, and part numbersIgnition coils, plugs, and high-tension wiresLighting units, bulbs, and connector standardsFuses, relays, and circuit protection layoutLesson 3Overview of 250cc street motorcycle architectureThis part gives a big-picture view of a 250cc street motorcycle. You will learn how main parts connect, how weight and space are balanced, and how parts diagrams show the full setup.
Major assemblies and system group breakdownFrame, engine, and suspension layout overviewIntake, exhaust, and fuel routing on chassisElectrical harness routing and component zonesControl ergonomics and rider triangle basicsReading OEM exploded views and part treesLesson 4Fuel and intake systems (fuel tank, fuel lines, petcock, injectors/carburettor)This part explains fuel storage and delivery parts. You will learn how tanks, lines, valves, pumps, and injectors or carburettors are described, kept from dirt, and arranged for safe putting together.
Fuel tank building, caps, and ventingFuel petcock, pump, and filter setupsFuel line sizes, materials, and routingInjectors, rails, and pressure regulator partsCarburettor bodies, jets, and float assembliesIntake boots, airbox, and clamp orientationLesson 5Bodywork and finishing parts (fairings, seat, mounting fasteners, decals)This part looks at body panels, seat units, and nice parts. You will learn how fairings, covers, fasteners, and decals are listed, kept from damage, and matched by colour and finish codes.
Front and side fairing panel identificationTail section, cowl, and seat base componentsBodywork mounting clips, screws, and grommetsPaint, colour, and graphic code referencesWindscreens, mirrors, and trim accessoriesPackaging and scratch prevention for panelsLesson 6Controls and rider interface (handlebar, grips, throttle, clutch/brake levers, foot controls)This part covers all rider control parts and connections. You will learn how handlebars, levers, pedals, and cables are described, adjusted, and kept in stock to make sure good sitting position and safe riding.
Handlebar sizes, rise, and clamp sizesGrips, bar ends, and vibration control partsThrottle tube, cables, and housing assembliesFront brake and clutch lever types and pivotsFootpegs, pedals, and linkage setupsControl adjustment ranges and reference pointsLesson 7Chassis and frame components (subframe, mounting points, fasteners)This part explains the main frame, subframe, and strong brackets. You will learn how mounting points, supports, and fasteners are identified, kept safe, and arranged to keep straightness and strong build.
Main frame materials and building typesSubframe designs, load paths, and supportsEngine and suspension mounting point locationsFrame brackets, tabs, and accessory mountsChassis fastener grades, coatings, and torqueFrame identification numbers and corrosion careLesson 8Engine and drivetrain components (engine assembly, gearbox, clutch, chain/sprockets)This part covers engine, gearbox, clutch, and final drive parts. You will learn how assemblies are split into small parts, how chains and sprockets are described, and how to keep track of wear and replacement items.
Engine assembly groups and major subassembliesGearbox shafts, gears, and selector componentsClutch basket, hub, plates, and actuation partsFront and rear sprocket specs and tooth countsDrive chain pitch, length, and master link typesDrivetrain wear inspection and replacement setsLesson 9Suspension and steering components (front fork, rear shock, triple clamps, steering bearings)This part explains suspension and steering hardware. You will learn how forks, shocks, triple clamps, and bearings are identified, stored, and prepared so that shape, tightness, and damping work right.
Front fork types, tube diameters, and travelRear shock units, linkages, and mounting pointsTriple clamp offsets, stem lengths, and pinchSteering head bearings, races, and sealsSwingarm construction and pivot hardwareSuspension labelling, pairs, and orientation
