KYMCO MXU 300 / MXU 250 Service Manual

KYMCO MXU 300/250 service information including engine, chassis, and electrical systems.

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Kymco Models Covered & Key Technical Specifications

Models: KYMCO MXU 300, KYMCO MXU 250
Sub-models / Variants: 250, 300, Off Road, On Road
Technical Data:

  • Engine type: O.H.C. 4-stroke single cylinder
  • Engine displacement: 249 cc (MXU 250), 270 cc (MXU 300)
  • Cooling type: Liquid cooled
  • Starting system: Electric/Recoil starter
  • Transmission type: Automatic (V-belt) with reverse
  • Spark plug: DPR7EA-9
  • Battery capacity: 12V12AH
Technical Specifications
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Document Number / Seller:
25731 / Christopher Cooper
File Size:
18.96 MB
File Type:
PDF
Language:
English
Pages:
351
Printable:
Yes
Category:
ATV
Last updated / verified
Jun 4, 2026

Kymco Manual Features & Content Preview

2005 KYMCO MXU 300 & 250 Service Manual

  • Complete workshop reference for the 2005 KYMCO MXU 300 and 250 ATV lineup
  • Official OEM manufacturer publication (PN 17211-KGB4-E00)
  • Features 161 exploded-view diagrams, 24 wiring schematics, and 351 pages of diagnostics
  • Fully searchable OCR text layer allows you to find specific torque specs instantly
  • Available via instant download directly after purchase for immediate access

Equipping your shop with accurate technical data drastically cuts down diagnostic time. This manual delivers comprehensive system documentation for the entire vehicle, mapping out the removal and installation of frame covers, exhaust components, and vital engine internals. Mechanics get precise factory tolerances for the cylinder head, valves, piston, and transmission drive pulleys. Because this manual is provided as an instant download, you can immediately load the file onto a shop tablet or print the exact electrical schematics needed for a specific job without waiting for physical shipping.

Accurate specifications are critical for reliable rebuilds and routine maintenance. The documentation includes exact data tables, such as the MXU 300 cylinder compression at 16 kg/cm² (1600 kPa, 227 psi) and a rear final gear case oil capacity of 150 cc during disassembly. Intake and exhaust valve clearance is set at 0.1 mm. Always prioritize safety by verifying your lifting equipment and wearing appropriate personal protective gear before diving into heavy chassis or electrical work. Working with these factory measurements serves as an official guide for workshop maintenance procedures, ensuring your ATV maintains proper engine performance and structural integrity.

Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

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