2014 KTM 125/150/250 SX & 150/250/300 XC Owner's Manual (P/N 3213030en)
KTM Models Covered & Key Technical Specifications
Models: KTM 125 SX EU, KTM 125 SX USA, KTM 150 SX EU, KTM 150 SX USA, KTM 250 SX EU, KTM 250 SX USA, KTM 150 XC USA, KTM 250 XC EU, KTM 250 XC USA, KTM 300 XC EU, KTM 300 XC USA
Sub-models / Variants: SX (Motocross), XC (Offroad endurance competition), 125, 150, 250, 300 displacement variants
Model Years: 2014
Technical Data:
- Engine displacement: 125 cc, 150 cc, 250 cc, 300 cc variants
- Fuel tank capacity: 7.5 liters (1.98 US gal) or 10 liters (2.6 US gal) depending on model
- Tire air pressure: 1.0 bar (15 psi) front and rear
- Radiator cap pressure: 1.8 bar (26 psi)
- Max permissible weight: 335 kg (739 lb.)
- Idle speed: 1,400–1,500 rpm
- Spark plug electrode gap: 0.60 mm (0.0236 in)
KTM Manual Features & Content Preview
- Official KTM publication (Art. no. 3213030en) for the 2014 125/150/250/300 SX and XC models
- Manufacturer-specified maintenance intervals (10, 20, 30, and 40 operating hours) for chassis, engine, cooling, and electrical systems
- Complete torque specifications and standard rider weight parameters for baseline chassis setup
- Detailed chassis tuning parameters, auxiliary spring adjustments, and troubleshooting tables
Technical Content and Documentation
Servicing the 2014 KTM SX and XC two-stroke lineup requires exact factory data. This official owner's publication breaks down the technical specifics needed to keep these competition bikes race-ready. It clearly separates the chassis setup and engine characteristic adjustments between the motocross (SX) and offroad (XC) variants. Readers get a precise look at auxiliary spring tuning, hydraulic clutch operation, carburetor idle tuning, and fuel tap management.
The documentation goes deep into the electrical systems specifically for the 250 and 300 XC models, detailing battery maintenance and fuse replacement procedures. It also covers the cooling system. You will find parameters for adjusting radiator covers based on ambient temperature, plus the exact procedures for coolant replacement.
Specifications and Reference Data
Precision matters in the workshop. The technical data sections outline vital reference values for both chassis and engine tuning. KTM establishes the baseline standard rider weight at 75 to 85 kg (165 to 187 lbs). From there, the text lists spring preload values for various weight ranges, such as a 45 N/mm spring rate for 65 to 75 kg riders on the 125 and 150 SX. Rear suspension static sag is locked in at 30 mm across all covered models.
When reassembling components, guessing torque values leads to catastrophic failures. The document catalogs critical fastener torque requirements, including the exact 80 Nm specified for the rear wheel spindle nut. Always prioritize safety in the shop; properly support the motorcycle on a sturdy stand and verify your mechanical competence before tackling high-stakes chassis or engine work. Relying on these factory reference numbers ensures your work meets original manufacturing tolerances.
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