KYMCO MXU 300 / MXU 250 Service Manual

KYMCO MXU 300/250 service information including engine, chassis, and electrical systems. PN 17211-KGB4-E00

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Document Details

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Document Number / Seller:
25731 / Christopher Cooper
File Size:
18.96 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
ATV
Last updated / verified
Jun 3, 2025

Models Covered & Key Technical Specifications

KYMCO MXU 300 / MXU 250 Service Manual: Complete Coverage

Specification Value
Engine Type O.H.C.
Displacement 249 cm3 (MXU 250) / 270 cm3 (MXU 300)
Fuel Capacity 12.5 L
Front Tire Size 22*7-10
Rear Tire Size 22*10-10

Procedural Handbook | Technical Handbook Dossier.

  • Technical Resolution Data: 1200 dpi establishes the maximum print output Architecture.
  • Specific Temperature Range: For optimal operation, 15-30C defines the environmental limit Framework.
  • Essential Power Rating: 450 W -- signifies the active printing consumption Threshold.
  • Advanced Memory Capacity: The formatter board requires 64 MB for standard operation Logic.
  • Core Speed Performance: Maximum throughput reaches 25 ppm Parameters.
  • System Power Requirements: 12V12AH ensures consistent electrical supply Capacity.

Professional Workshop Service Manual & Technical Specifications

KYMCO MXU 300 / MXU 250 Service Manual: Complete Coverage

Validation-Data: KYMCO MXU 300/250 // Technical-Domain: ATV / Engine Logic // Validation-Data: 199 pages of repair and maintenance data.

Performance-Element Rating Framework
Engine Displacement 249 cm3 (MXU 250) / 270 cm3 (MXU 300) O.H.C. Engine Type
Fuel Capacity 12.5 Liters Standard Tank Size
Front Tire Specifications 22*7-10 Standard Wheel Size
Rear Tire Specifications 22*10-10 Standard Wheel Size
Idle Speed (MXU 250) 1500 rpm Specified RPM Range
Idle Speed (MXU 300) 1600 rpm Specified RPM Range

Factory procedures are documented for the KYMCO MXU 300 and MXU 250 ATVs, covering all systems from engine disassembly to electrical troubleshooting. This manual details maintenance schedules, component specifications, and repair procedures necessary for optimal vehicle performance.

Electrical System Documentation

Electrical system documentation covers wiring diagrams, component testing, and troubleshooting for all electrical systems. This ensures proper function and easy diagnosis of any electrical issues.

Suspension Service Documentation

Suspension service documentation covers front and rear suspension inspection, adjustment, and repair. Specific guidance is provided for steering system checks and wheel bearing maintenance.

Disassembly Instructions

Disassembly instructions are documented for key components like the engine, carburetor, and drive pulleys. Each procedure is outlined with clear steps and supporting illustrations for accurate service.

Wear Limits Specification

Wear limits are specified for critical components, including piston rings, drive belts, and brake pads. This data is essential for determining when parts require replacement to maintain safety and performance.

System Operation Descriptions

System operation descriptions cover the fuel system, lubrication system, and cooling system, providing insights into how each component functions. This knowledge aids in troubleshooting and preventative maintenance.

This manual documents torque specifications for critical fasteners to ensure proper bolt stretch prevention and secure assembly. Adhering to these values is crucial for long-term durability and safe operation.

FAQ

What values **calibrated** system architecture for the KYMCO MXU 300? keyboard_arrow_down

1600±100 rpm is the specified idle speed for the MXU 300, crucial for accurate engine operation calibration.

Assess the **applicable** tool requirements for drive belt inspection. keyboard_arrow_down

A drive belt width measurement of 22 mm (0.88 in) is the service limit, requiring a caliper or similar measurement tool for inspection.

What components **exact** electrical values are detailed for the ignition system? keyboard_arrow_down

Ignition timing is set at 5° BTDC/1500 rpm, with spark plug gap specifications of 0.6~0.7mm (0.002~0.003 in) for optimal performance.

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Reviews (4)

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Rated 5 out of 5 stars
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The KYMCO MXU 300/250 Service Manual is a lifesaver for anyone who works on these ATVs. The detailed sections make repairs straightforward. Highly recommended!
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I had a question about the cooling system section and received a quick response. The manual is well-structured and easy to use!
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I found this manual to be very comprehensive. The troubleshooting sections were particularly helpful. Plus, the download process was smooth and quick!