Lesson 1Wheels, tires, and braking systems (rims, hubs, disc rotors, calipers, pads)This lesson covers wheel assemblies, tire selection, and braking hardware in detail. You will learn specifications, inspection, storage, and preparation of rims, hubs, rotors, calipers, and pads for safe installation on motorcycles.
Rim and hub types, sizes, and specificationsDisc rotor dimensions, offset, and mountingCaliper designs, mounting styles, and hardwareBrake pad compounds, wear limits, and codingTire sizing, load ratings, and speed indexesWheel, tire, and brake storage and labelingLesson 2Electrical system components (battery, wiring harness, ECU, ignition, lighting, fuses)This lesson details the electrical system from power supply to lighting. You will learn how to specify, label, and organize the battery, harness, ECU, ignition, and protection devices for assembly and diagnosis.
Battery types, ratings, and mounting hardwareMain wiring harness branches and connectorsECU location, mounting, and part numberingIgnition coils, plugs, and high-tension leadsLighting units, bulbs, and connector standardsFuses, relays, and circuit protection layoutLesson 3Overview of 250cc street motorcycle architectureThis lesson provides a system-level view of a 250cc street motorcycle. You will learn how major assemblies connect, balance weight and packaging, and interpret parts diagrams for the complete architecture.
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/carburetor)This lesson details fuel storage and delivery components. You will learn to specify, protect from contamination, and organize tanks, lines, valves, pumps, injectors or carburetors for safe assembly.
Fuel tank construction, caps, and ventingFuel petcock, pump, and filter arrangementsFuel line diameters, materials, and routingInjectors, rails, and pressure regulator partsCarburetor bodies, jets, and float assembliesIntake boots, airbox, and clamp orientationLesson 5Bodywork and finishing parts (fairings, seat, mounting fasteners, decals)This lesson focuses on body panels, seat units, and cosmetic parts. You will learn to catalog, protect from damage, and match fairings, covers, fasteners, and decals by color and finish codes.
Front and side fairing panel identificationTail section, cowl, and seat base componentsBodywork mounting clips, screws, and grommetsPaint, color, 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 lesson covers rider control components and interfaces. You will learn to specify, adjust, and inventory handlebars, levers, pedals, and cables for consistent ergonomics and safe operation.
Handlebar dimensions, 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 arrangementsControl adjustment ranges and reference pointsLesson 7Chassis and frame components (subframe, mounting points, fasteners)This lesson explains the main frame, subframe, and structural brackets. You will learn to identify, protect, and organize mounting points, gussets, and fasteners for alignment and structural integrity.
Main frame materials and construction 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 lesson covers engine, gearbox, clutch, and final drive parts. You will learn to break assemblies into subcomponents, specify chains and sprockets, and inventory 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 lesson explains suspension and steering hardware. You will learn to identify, store, and prepare forks, shocks, triple clamps, and bearings for correct geometry, preload, and damping functions.
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 labeling, pairs, and orientation