Target audience:
KTM dealers, independent motorcycle shops, and owners servicing 1993 KTM 500/550 two-stroke engines
Purpose:
Identify correct replacement engine parts by OEM part number for ordering and rebuilds
Competitive advantage:
Factory-level parts identification with exploded-view diagrams and official part numbers
Usage:
Cross-reference part numbers against current KTM supersession lists when ordering
Diagram style:
Exploded-view illustrations for every engine assembly
Part numbering:
Genuine KTM part numbers throughout
Searchability:
Searchable, bookmarked, printable PDF
Coverage areas:
Complete engine assemblies and replacement parts for 1993 KTM 500 and 550 two-stroke engines
Manual type:
Factory replacement parts catalog
Format:
Searchable PDF (zoomable and printable)
Delivery method:
Instant digital download
Device compatibility:
Windows PC, Mac, tablets, smartphones
Engine case and crankcase:
Crankcase halves, gaskets, seals, mounting hardware
Crankshaft assembly:
Crankshaft, connecting rod, bearings, counterweights
Cylinder and piston:
Cylinder, piston, rings, wrist pin, clips
Cylinder head:
Head, O-rings, fasteners
Ignition system:
Stator, rotor, CDI unit, spark plug, coil components
Clutch assembly:
Clutch basket, plates, springs, hubs, actuation parts
Gearbox and transmission:
Gear sets, shift drum, forks, shafts, transmission bearings
Kickstarter:
Kickstarter shaft, gears, return spring, ratchet parts
Carburetor and intake:
Carburetor assembly parts, intake manifold, reed valve components
Exhaust:
Exhaust flange, mounting and sealing parts
Cooling system:
Liquid-cooling components: water pump, impeller, seals, hoses (as equipped)
Oil and lubrication:
Premix system; no oil injection parts unless equipped
Fasteners and hardware:
OEM screws, nuts, washers and special hardware
Special tools:
Special service tool numbers referenced where required
Procedures included:
Parts identification and ordering; rebuilds use companion service manual
Technical depth:
Factory-level exploded views with part numbers and quantities per assembly
Parts information:
Genuine KTM part numbers, descriptions, and quantities per diagram
Wiring diagrams:
Not included; this is a parts catalog, not an electrical manual
Torque specs:
Not the focus; refer to the service repair manual for tightening torques
Model coverage:
1993 KTM 500 and 550 engine variants; verify exact variant before ordering
Part supersession:
Check current KTM supersession lists, as part numbers may have been updated
Printing:
Fully printable PDF for workshop use
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
Displacement range:
Approx. 500 cc to 550 cc depending on variant
Lubrication:
Premix (oil mixed with fuel)
Fuel system:
Carburetor (Mikuni or Keihin type)
Ignition:
Electronic CDI ignition
Starting:
Kick start only
Exact performance figures:
N/A - not specified in this parts catalog; refer to the service manual
Standard transmission:
Multi-speed constant-mesh gearbox (typ. 5-speed)
Optional transmission:
N/A - no factory automatic option offered on this model
Clutch:
Wet multi-plate manual clutch
Gearchange:
Sequential foot shift
Catalog coverage:
Gear sets, shafts, shift forks, drum and bearings in parts diagrams
Wheelbase:
N/A - not specified in this parts catalog
Overall length:
N/A - not specified in this parts catalog
Curb weight:
Approx. 100-110 kg depending on variant (factory era figures)
Fuel capacity:
Approx. 9-10 liters depending on variant
Seat height:
Approx. 900 mm (dirt bike configuration)
Note:
This document is a parts catalog; see the service manual for full dimensional data
Crash test rating:
N/A - not applicable to off-road motorcycles
Passive features:
N/A - competition off-road motorcycle, no occupant safety systems
Workshop safety:
Catalog and companion manual include general safety warnings for engine service
Operational equipment:
DOT-approved helmet and protective gear required when riding
Brakes:
Front and rear disc brakes (drum rear on some variants)
Service intervals:
Refer to companion service manual for factory maintenance schedules
Engine oil:
Two-stroke premix oil mixed with fuel per specified ratio
Transmission oil:
Approx. 0.9-1.2 liters of gearbox oil; verify exact spec in service manual
Coolant:
Silicate-free motorcycle coolant for liquid-cooled models
Spark plug:
Replace per interval; exact spec listed in service manual
Common wear items:
Piston, rings, reed petals, clutch plates, sprockets and chain
Top-end service:
Two-stroke top-end rebuild at regular intervals is expected maintenance