Target Audience:
KTM motorcycle owners, technicians, restoration specialists, and parts suppliers specializing in vintage KTM off-road motorcycles.
Value Proposition:
Provides essential visual and numerical data for maintaining and repairing the specific KTM models, often difficult to find for older, specialized motorcycles.
Illustration Detail:
Fully illustrated with exploded views, offering clear visual representation of component relationships and assembly order.
Parts Accuracy:
Directly references OEM part numbers for accurate sourcing of replacement components.
Engine Components:
Complete engine assembly, internal components, external engine fittings, cooling system, lubrication system, ignition system, carburetion/fuel delivery.
Model Coverage:
KTM 250 TVC (1995), KTM 300 TVC (1995)
Estimated Page Count:
150-250 pages (estimated for comprehensive parts manual)
Type:
Illustrated Parts List / Catalog
Format:
Printed (assumed based on typical product description, but digital PDF is also common)
Engine Internals:
Cylinder, piston, rings, connecting rod, crankshaft, bearings, cylinder head, valves (if applicable), camshafts (if applicable).
Engine Externals:
Carburetor assembly, intake manifold, exhaust system (header pipe, muffler connections), ignition coil, spark plug, starter motor, water pump, oil pump (if applicable).
Cooling System:
Radiator, hoses, thermostat, water pump impeller, coolant.
Lubrication System:
Oil pump, oil filter, oil passages, oil seals, gaskets.
Fuel System:
Carburetor (jetting, float bowl, needle, emulsion tube), fuel lines, fuel filter, fuel petcock.
Disassembly Guidance:
Provides visual reference for part identification during disassembly. Exploded views aid in understanding assembly order and component relationships.
Assembly Guidance:
Essential for correctly reassembling the engine by providing part numbers and visualizing the placement of components.
Part Identification:
Crucial for ordering the correct replacement parts. Each component is listed with a unique part number.
Depth:
Component-level detail, suitable for parts identification, ordering, and visual reference during mechanical work. Does not typically include torque specifications, diagnostic procedures, or repair techniques.
Format Type:
Printed Manual (common for vintage parts catalogs), potentially available as PDF.
Quality:
Good quality illustrations and part diagrams, typical of OEM or reputable aftermarket manuals from the era.
Binding:
Stapled or perfect bound (typical for printed manuals).
Paper:
Durable paper stock suitable for workshop use.
Engine Type:
Two-stroke, liquid-cooled single-cylinder engine (typical for TVC models).
Displacement 250:
Approximately 249cc (for 250 TVC).
Displacement 300:
Approximately 293cc (for 300 TVC).
Power Delivery:
Known for strong mid-range and top-end power, typical of performance-oriented two-stroke off-road engines.
Carburetor Size 250:
Likely 36mm Keihin PWK or similar (typical for this era/displacement).
Carburetor Size 300:
Likely 38mm Keihin PWK or similar (typical for this era/displacement).
Ignition Type:
Digital CDI ignition system (common for KTM).
Cooling Method:
Liquid cooling via radiator and water pump.
Top End Rebuild:
Highly variable based on usage; competitive racing can necessitate top-end rebuilds every 40-80 hours of operation. Recreational use allows for longer intervals.
Piston Ring Replacement:
Recommended during top-end rebuilds, or when compression loss is detected.
Engine Oil Type:
Two-stroke pre-mix oil (specified by KTM for optimal performance and engine longevity). Typically 100% synthetic racing oil.
Transmission Oil Type:
API GL-3 or GL-4 gear oil, typically SAE 75W/90 or 80W/90. Specific KTM part numbers would be ideal if available in the manual.
Coolant Type:
Ethylene glycol-based antifreeze/coolant (50/50 mix with distilled water).
Carburetor Tuning:
Sensitive to altitude and temperature changes, often requires re-jetting for optimal performance in different conditions.
Clutch Wear:
Clutch plates can wear over time, especially with aggressive riding. Hydraulic system requires occasional bleeding.
Power Valve Maintenance:
Mechanical power valve system requires regular cleaning and lubrication to prevent sticking, which can affect power delivery.
Ignition Coil Reliability:
Early models can sometimes experience ignition coil failures, though generally reliable.
Heritage:
KTM has a strong heritage in off-road racing, particularly motocross and enduro, known for its performance and 'Ready to Race' philosophy.
Tvc Series:
The TVC designation typically refers to KTM's Enduro/Cross-Country models of this era, evolving from earlier models and preceding later SXS or EXC platforms. These bikes were often purpose-built for competitive off-road riding.
Manufacturing Location:
Austria (KTM AG headquarters and primary manufacturing).
