KYMCO MXU 250 Service Manual
Comprehensive KYMCO MXU 250 Service Manual covering all configurations of the MXU 250. Features include detailed diagrams, step-by-step repair instructions, and troubleshooting guides. Publication number
Kymco Models Covered & Key Technical Specifications
Models: KYMCO MXU 250
Sub-models / Variants: LB50AD, LB50AA
Trade Names: MXU
Technical Data:
- Engine displacement: 249 cm³ (15.2 cu-in)
- Engine type: Single cylinder, O.H.C., 4-stroke
- Compression ratio: 10.3:1
- Bore x stroke: 72.7 x 60 mm (2.9 x 2.4 in)
- Fuel capacity: 12.5 L (3.25 US gal)
- Cooling type: Liquid cooled
- Starter system: Electric/Recoil starter
- Transmission type: Automatic centrifugal (CVT)
- Idle speed: 1500 ±100 rpm
- Spark plug: DPR7EA-9
- Spark plug gap: 0.6–0.7 mm (0.002–0.003 in)
- Valve clearance (cold): Intake 0.1 mm (0.004 in), Exhaust 0.1 mm (0.004 in)
- Battery capacity: 12V 12AH
- Drive system: Chain drive
Kymco Manual Features & Content Preview
- Covers the 2004–2005 KYMCO MXU 250 (LB50AD/AA) equipped with the liquid-cooled 4-stroke O.H.C. engine and automatic centrifugal drive system
- Official 276-page OEM workshop publication (P/N LBA7, C4085-91017) detailing engine, chassis, electrical, and cooling system specifications
- Features eight exploded-view diagrams, two electrical circuit schematics, and three comprehensive torque tables for engine and frame components
- Outlines complete factory reference procedures for diagnostic and repair work on the LB50AD series
Technical Data and System Documentation
This KYMCO MXU 250 manual documents the precise technical requirements for maintenance, teardowns, and assembly. Chapters systematically break down frame cover removal, exhaust muffler routing, and internal engine component inspection. You will find reference values for cylinder compression, spark plug gaps, and the entire electrical system. It also provides clear diagrams for cable routing and troubleshooting. Always verify these factory specifications and exercise proper shop safety protocols before beginning any work on this equipment, as specialized mechanical expertise is necessary to prevent component damage.
Specification Highlights
The technical data section establishes major service intervals and component identification details essential for any structural repair or overhaul. For instance, the cylinder compression for the MXU 250 is rated at 15 ±2 kg/cm² in the factory inspection tables. Intake and exhaust valve clearances are specifically listed at 0.1 mm (0.004 in) within the cylinder head specs. Additionally, the engine oil capacity is documented at precisely 1.4 liters for standard fluid exchanges.
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