Target Audience:
Youth racers (approx. 8-12 years old) and families competing in mini-cycle motocross
Market Segment:
65cc class competition dirt bikes
Competitive Advantage:
Lightweight chromoly frame, race-tuned two-stroke engine, and European race-bred components compared with Japanese 65cc rivals
Key Features:
Liquid-cooled 65cc two-stroke engine, WP suspension components, hydraulic disc brakes front and rear
Engine:
Cylinder, piston, crankshaft, ignition, exhaust and cooling system exploded views with part numbers
Carburetion:
Carburetor assemblies, jets, throttle and intake components
Clutch & Transmission:
Primary drive, clutch assembly, gearbox, shift mechanism
Frame & Bodywork:
Frame, subframe, fenders, seat, tank, radiator shrouds
Suspension:
WP front forks and rear shock linkages, swingarm
Wheels & Brakes:
Front and rear wheels, hubs, hydraulic disc brake assemblies
Electrical System:
Ignition system, wiring components, switches
Fasteners & Hardware:
OEM bolts, nuts, seals, bearings and gaskets
Parts Identification:
Exploded diagrams for locating exact OEM part numbers
Ordering Information:
Part numbers for ordering genuine KTM replacement parts
Assembly References:
Component relationships shown for correct reassembly ordering
Parts Detail Level:
Full OEM-level detail with quantity per assembly and interchangeable part references
Intended Use:
Reference for dealers, service shops, and DIY owners ordering parts
Genuine Parts:
Covers factory KTM part numbers
Superseded Numbers:
N/A - not specified for this model
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Type:
Single-cylinder two-stroke, liquid-cooled
Displacement:
Approx. 65 cc
Bore x Stroke:
N/A - not specified for this model
Cooling:
Liquid-cooled with radiator
Induction:
Two-stroke with reed valve intake
Carburetor:
Dellorto PHBG-type slide carburetor
Ignition:
Kokusan electronic CDI ignition
Lubrication:
Premix (oil mixed with fuel)
General Inspection:
Inspect before every ride
Piston / Top End:
Frequent inspection recommended for competition use; typical rebuild interval a few race weekends
Chain & Sprockets:
Check tension and lubrication before every ride
Coolant:
Liquid cooling system; use quality radiator coolant, check level before riding
Fuel / Oil:
Premix two-stroke oil with fuel per KTM specified ratio
Common Wear Items:
Brake pads, chain, sprockets, piston and rings, clutch plates, reed valves
Suspension Service:
Periodic fork seal and shock service recommended for hard use
Manufacturer:
KTM, Austrian motorcycle manufacturer founded in 1953, based in Mattighofen, Austria
Model Evolution:
The 65 SX was developed from KTM's line of mini motocross bikes, giving young racers a scaled-down version of KTM's full-size SX competition machines
Production Location:
Austria (KTM factory, Mattighofen)
