**KTM Engine 250-525 SX-MXC-EXC RACING 2003**

**Engine:**

* Single-cylinder, four-stroke, liquid-cooled
* Displacement: 249.5 cc (250 SX), 331.5 cc (250 EXC), 449.3 cc (525 SX), 499.5 cc (525 EXC)
* Bore and stroke: 78 mm x 56.4 mm (250 SX), 89 mm x 56.4 mm (250 EXC), 95 mm x 72 mm (525 SX), 105 mm x 72 mm (525 EXC)
* Compression ratio: 12.5:1 (250 SX), 12.7:1 (250 EXC), 13.3:1 (525 SX), 13.5:1 (525 EXC)
* Power output: Approximately 54 hp (250 SX), 56 hp (250 EXC), 62 hp (525 SX), 64 hp (525 EXC)
* Torque: Approximately 34 lb-ft (250 SX), 36 lb-ft (250 EXC), 45 lb-ft (525 SX), 47 lb-ft (525 EXC)
* Fuel injection: Mikuni 38 mm carburetor (250 SX), Dell'Orto 40 mm carburetor (250 EXC), Mikuni 42 mm carburetor (525 SX), Dell'Orto 44 mm carburetor (525 EXC)

**Transmission:**

* Five-speed manual transmission
* Constant mesh gears
* Wet multi-plate clutch

**Chassis:**

* Steel frame with twin spars
* Inverted front forks with 18 inches of travel (250 SX), 19.2 inches of travel (250 EXC)
* Rear monoshock with 20 inches of travel (250 SX), 20.8 inches of travel (250 EXC)
* Front 21-inch wheel, rear 18-inch wheel
* Hydraulic disc brakes front and rear

**Suspension:**

* Front: WP upside-down 48 mm forks with adjustable rebound and compression
* Rear: WP monoshock with adjustable rebound and compression

**Brakes:**

* Front: 260 mm hydraulic disc with four-piston caliper
* Rear: 220 mm hydraulic disc with single-piston caliper

**Wheels and Tires:**

* Front: 21 x 1.60 aluminum rim
* Rear: 18 x 2.15 aluminum rim
* Tires: Michelin StarCross front and rear

**Dimensions:**

* Length: 85.8 inches (2180 mm)
* Width: 32.7 inches (830 mm)
* Height: 49.2 inches (1250 mm)
* Seat height: 38.6 inches (980 mm)
* Wet weight: Approximately 245 lbs (250 SX), 250 lbs (250 EXC), 265 lbs (525 SX), 270 lbs (525 EXC)

**Features:**

* PDS (Progressive Damping System) rear suspension
* O-ring chain
* Aluminum handlebar
* Plastic fuel tank
* Electronic ignition
* Kick start only

The manual what will be send to you will contain all the necessary needed instructions for all the repairs for your motor bike from front to the back of your bike.The same manual is used by your garage or workshop to repair your bike.So you could save you a lot of money with this manual, it will give you all the technical information what is needed to get your bike running in 100% condition.You will find illustrations, diagrams technical specifications, depth illustrations and step by step explanations how to do the job, even if you don‘t have much knowledge about bikes this could be understood with some basic mechanical knowledge to safety and easily servicing your bike.CONTENTS OF THE REPAIR MANUALgeneral Informationframe/body panels/exhaust systemmaintenancelubricationcooling systemfuel systemengine removal/installationcylinder head/cylinder/pistonclutch/gearshift inkagecrankshaft/transmissionfront wheel/suspension/steeringrear wheel/suspensionbrakescharging system/alternatorignition systemelectric starter/starter clutchlights/meters/switcheswiring diagramtrouble shoutingindexSlight different in the manual could be possible as we are using this as an template, if you are not happy then we find a solution.We are here for the long run so our customer is important to us.