Target Audience:
KTM dealers, service technicians, and DIY owners ordering factory replacement parts for the 144 SX
Purpose:
Accurate parts identification and ordering with factory part numbers
Class:
125cc-class two-stroke motocross competition bike
Key Advantage:
OEM part numbers and exploded views eliminate wrong-part orders
Exploded Diagrams:
Every assembly section illustrated with exploded views
Part Numbers:
Factory KTM part numbers for every component
Searchable:
Full-text searchable PDF for fast part lookup
Format:
Searchable PDF (zoomable, printable, bookmarked chapters)
Delivery Method:
Instant digital download — no shipping, no waiting
Compatibility:
Windows PC, Mac, tablets, and smartphones
Re-Download:
Download again anytime after purchase
Page Count:
N/A - not specified for this catalog
Model Coverage:
2008 KTM 144 SX — all variants
Content Type:
OEM replacement parts catalog with exploded-view diagrams
Part Numbering:
Factory KTM part numbers throughout
Illustrations:
Exploded-view parts diagrams and component location guides
Engine:
Cylinder, piston, crankshaft, and related components with exploded views
Fuel System:
Carburetor and throttle assembly part diagrams
Cooling System:
Radiator, hoses, and water pump components
Clutch:
Clutch assembly and actuation parts
Transmission:
Gearbox internals and shift mechanism parts
Frame & Body:
Frame, subframe, fenders, and body panels
Suspension:
Front forks, shock absorber, linkage, and swingarm parts
Wheels & Brakes:
Wheels, hubs, discs, calipers, and master cylinders
Electrical System:
Ignition, wiring harness, and electrical components
Controls & Cables:
Handlebar controls, levers, and cable assemblies
Fasteners & Hardware:
Screws, bolts, bearings, and seals with factory part numbers
Parts Identification:
Component identification and location guides for every section
Exploded Views:
Assembly and disassembly order illustrated for each group
OEM Part Numbers:
Factory part numbers for ordering replacement components
Supersessions:
Part cross-references where applicable
Wear Items:
Pistons, seals, bearings, and chains identified as service parts
Searchable Text:
Zoomable and printable pages for workshop use
Bookmarks:
Bookmarked chapters for quick navigation
Ordering Use:
Designed for accurate parts ordering at dealers and shops
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:
Two-stroke single-cylinder, liquid-cooled
Displacement:
143.5 cc (144cc class)
Bore and Stroke:
Approximately 57 mm bore — refer to manual for exact values
Induction:
Reed valve two-stroke
Carburetor:
Keihin carburetor
Fuel Type:
Premium gasoline mixed with 2-stroke oil (premix)
Lubrication:
Premix — ratio per KTM specification in manual
Power Output:
N/A - competition figures not published in parts catalog
Purpose:
Closed-course motocross competition use
Transmission:
6-speed constant-mesh manual
Clutch:
Wet multi-disc clutch, hydraulic or cable actuated
Gearbox Parts:
Complete exploded diagrams of gears, shafts, and shift drum
Wheelbase:
N/A - not specified in parts catalog
Overall Length:
N/A - not specified in parts catalog
Curb Weight:
N/A - not specified in parts catalog
Fuel Capacity:
Approximately 2.1 gal (8 L) typical for this class
Wheel Sizes:
21-inch front, 19-inch rear (motocross spec)
Crash Test Ratings:
N/A - off-road competition motorcycles are not crash tested
Braking:
Hydraulic disc brakes front and rear
Lighting:
None — pure competition model, not street equipped
Safety Note:
Intended for closed-course use with appropriate rider protective gear
General Service:
Refer to factory service manual for interval schedules
Piston Service:
Frequent top-end inspection typical for 2-stroke competition use
Chain & Sprockets:
Regular check, adjust, and replace as wear items
Fluids:
2-stroke premix oil and transmission oil per KTM specification
Piston & Rings:
Available as OEM replacement parts in this catalog
Seals & Gaskets:
Crank and engine seals listed with factory part numbers
Brake Pads & Discs:
Consumable wear parts fully cataloged
Bearings:
Wheel, linkage, and steering head bearings available as replacements
Manufacturer:
KTM — Austrian motorcycle manufacturer, Motorsport heritage
Model Evolution:
144 SX introduced as an enlarged-bore alternative to the 125 SX for the 2-stroke MX2 class
Production Location:
Austria (KTM factory, Mattighofen)
Model Year:
2008 production, within the SX two-stroke motocross line
