The KTM 300 EXC 2004-2010 is the world premier two-stroke enduro motorcycle featuring a 293cc liquid-cooled reed-valve engine with power valve, six-speed gearbox, electric start, and WP suspension components. This complete factory service repair manual covers engine top-end and bottom-end rebuilding, power valve adjustment, Keihin carburetor jetting specifications, clutch and transmission overhaul, cooling system repair, WP fork and shock rebuilds, brake system service, CDI electrical troubleshooting, wiring diagrams, torque specifications, and competition maintenance intervals. The definitive maintenance reference for KTM two-stroke enduro riders and technicians.
KTM 300 EXC 2004-2010 SERVICE REPAIR WORKSHOP MANUAL
VEHICLE/EQUIPMENT INTRODUCTION:
The KTM 300 EXC is the legendary two-stroke enduro motorcycle that has dominated hard enduro competitions and wooded trail riding for decades. KTM Austria has continuously refined this machine through the 2004 to 2010 model years, maintaining its position as the definitive large-displacement two-stroke off-road motorcycle. The 293cc reed-valve two-stroke single delivers a power-to-weight ratio that four-stroke competitors struggle to match.
The EXC designation represents KTM Enduro Cross Country racing pedigree with features including electric starting, a six-speed wide-ratio gearbox, power valve exhaust system for linear power delivery, and a chromoly steel trellis frame that provides precise handling through the tightest single-track trails.
Throughout its production history, the KTM 300 EXC has been the weapon of choice for multiple world enduro championship winners and remains the most feared weapon in any hard enduro rider arsenal. The combination of lightweight handling, tractable low-end power, and virtually indestructible two-stroke simplicity makes this motorcycle as practical for backyard trail riding as it is for extreme competitive events.
SERVICE & REPAIR SCOPE:
- Engine top-end rebuild including piston, rings, and power valve servicing
- Crankshaft and bottom-end bearing replacement procedures
- Carburetor Keihin PWK jetting and adjustment specifications
- Power valve mechanism cleaning and adjustment
- Six-speed transmission gear and shift fork inspection
- Clutch plate wear limit measurement and basket groove inspection
- Cooling system flush and water pump seal replacement
- Suspension WP fork oil change and cartridge rebuild
- WP monoshock rebuild with clicker adjustment calibration
- Brake system disc thickness measurement and pad replacement
- Electrical system including CDI, stator, and lighting coil testing
- Frame steering head bearing inspection and replacement
TECHNICAL SPECIFICATIONS:
- Engine: 293cc liquid-cooled two-stroke single, reed valve
- Bore x Stroke: 72mm x 72mm
- Carburetor: Keihin PWK 38mm or 39mm
- Ignition: Kokusan CDI digital ignition
- Transmission: 6-speed wide ratio
- Clutch: Wet multi-plate hydraulically operated
- Frame: Chromoly steel powder-coated trellis
- Front suspension: WP USD forks 48mm
- Rear suspension: WP monoshock with linkage
- Front brake: 260mm disc with 2-piston caliper
- Rear brake: 220mm disc with 1-piston caliper
- Seat height: Approximately 950mm
DIAGNOSTIC INFORMATION:
- Engine bog at mid-range power valve adjustment and cleaning
- Hard starting reed petal inspection and crank seal leakdown test
- Transmission jumping out of gear shift fork and drum wear check
- Fork oil leak seal replacement and bushing wear inspection
- Overheating water pump impeller wear and coolant bleed
- Spark plug fouling jetting too rich needle position adjustment
- Clutch slipping plate thickness and spring free length check
ILLUSTRATIONS & DIAGRAMS INCLUDED:
- Engine cutaway showing reed valve and power valve mechanism
- Carburetor assembly with needle jet clip position diagrams
- WP fork cartridge exploded view with oil capacity specifications
- Frame geometry with steering head bearing exploded arrangement
- Electrical system wiring diagram with stator coil pin-outs
- Chassis geometry with linkage ratio diagrams
COMPATIBILITY:
- Covers KTM 300 EXC model years 2004 through 2010
- Includes all year-to-year revisions and updates
- Applicable to US and international market specifications
- Covers both standard and Six Days edition models
FILE PROPERTIES:
- Format: Searchable PDF
- Language: English
- Delivery: Instant digital download
- Access: Download anytime after purchase
KTM 300 EXC 2004-2010 SERVICE REPAIR WORKSHOP MANUAL
VEHICLE/EQUIPMENT INTRODUCTION:
The KTM 300 EXC is the legendary two-stroke enduro motorcycle that has dominated hard enduro competitions and wooded trail riding for decades. KTM Austria has continuously refined this machine through the 2004 to 2010 model years, maintaining its position as the definitive large-displacement two-stroke off-road motorcycle. The 293cc reed-valve two-stroke single delivers a power-to-weight ratio that four-stroke competitors struggle to match.
The EXC designation represents KTM Enduro Cross Country racing pedigree with features including electric starting, a six-speed wide-ratio gearbox, power valve exhaust system for linear power delivery, and a chromoly steel trellis frame that provides precise handling through the tightest single-track trails.
Throughout its production history, the KTM 300 EXC has been the weapon of choice for multiple world enduro championship winners and remains the most feared weapon in any hard enduro rider arsenal. The combination of lightweight handling, tractable low-end power, and virtually indestructible two-stroke simplicity makes this motorcycle as practical for backyard trail riding as it is for extreme competitive events.
SERVICE & REPAIR SCOPE:
- Engine top-end rebuild including piston, rings, and power valve servicing
- Crankshaft and bottom-end bearing replacement procedures
- Carburetor Keihin PWK jetting and adjustment specifications
- Power valve mechanism cleaning and adjustment
- Six-speed transmission gear and shift fork inspection
- Clutch plate wear limit measurement and basket groove inspection
- Cooling system flush and water pump seal replacement
- Suspension WP fork oil change and cartridge rebuild
- WP monoshock rebuild with clicker adjustment calibration
- Brake system disc thickness measurement and pad replacement
- Electrical system including CDI, stator, and lighting coil testing
- Frame steering head bearing inspection and replacement
TECHNICAL SPECIFICATIONS:
- Engine: 293cc liquid-cooled two-stroke single, reed valve
- Bore x Stroke: 72mm x 72mm
- Carburetor: Keihin PWK 38mm or 39mm
- Ignition: Kokusan CDI digital ignition
- Transmission: 6-speed wide ratio
- Clutch: Wet multi-plate hydraulically operated
- Frame: Chromoly steel powder-coated trellis
- Front suspension: WP USD forks 48mm
- Rear suspension: WP monoshock with linkage
- Front brake: 260mm disc with 2-piston caliper
- Rear brake: 220mm disc with 1-piston caliper
- Seat height: Approximately 950mm
DIAGNOSTIC INFORMATION:
- Engine bog at mid-range power valve adjustment and cleaning
- Hard starting reed petal inspection and crank seal leakdown test
- Transmission jumping out of gear shift fork and drum wear check
- Fork oil leak seal replacement and bushing wear inspection
- Overheating water pump impeller wear and coolant bleed
- Spark plug fouling jetting too rich needle position adjustment
- Clutch slipping plate thickness and spring free length check
ILLUSTRATIONS & DIAGRAMS INCLUDED:
- Engine cutaway showing reed valve and power valve mechanism
- Carburetor assembly with needle jet clip position diagrams
- WP fork cartridge exploded view with oil capacity specifications
- Frame geometry with steering head bearing exploded arrangement
- Electrical system wiring diagram with stator coil pin-outs
- Chassis geometry with linkage ratio diagrams
COMPATIBILITY:
- Covers KTM 300 EXC model years 2004 through 2010
- Includes all year-to-year revisions and updates
- Applicable to US and international market specifications
- Covers both standard and Six Days edition models
FILE PROPERTIES:
- Format: Searchable PDF
- Language: English
- Delivery: Instant digital download
- Access: Download anytime after purchase
