Kymco Maxxer Mongoose 250, Mongoose 300, MXER 250R ATV Repair Manual

Documents service procedures for Kymco Maxxer Mongoose 250, Mongoose 300, and MXER 250R ATVs, covering engine, chassis, and electrical systems. Part No. 4122-ATV250-S00.

4.3starstarstarstarstar_border(3)
★ BEST PRICE
visibility Preview Available
Kymco Kymco Maxxer Mongoose 250, Mongoose 300, MXER 250R ATV Repair Manual manual page preview - page 1 of

Sample pages from the Kymco Maxxer Mongoose 250, Mongoose 300, MXER 250R ATV Repair Manual manual

Kymco Kymco Maxxer Mongoose 250, Mongoose 300, MXER 250R ATV Repair Manual manual preview page 1 - thumbnail
Kymco Kymco Maxxer Mongoose 250, Mongoose 300, MXER 250R ATV Repair Manual manual preview page 3 - thumbnail
Kymco Kymco Maxxer Mongoose 250, Mongoose 300, MXER 250R ATV Repair Manual manual preview page 4 - thumbnail
info_outline Click thumbnails to preview different pages
$14.27 (incl. VAT) Instant Download / No Shipping Fees
OR BUY NOW
verified_user
Lifetime Access
Re-download anytime
flash_on
Instant Download
Get it immediately
lock
Secure Payment
PayPal

Kymco Models Covered & Key Technical Specifications

Kymco Maxxer Mongoose 250, Mongoose 300, MXER 250R (4122-ATV250-S00) – 2005 Service Manual | Kymco ATV Folder.

  • Engine Specifications: 249 cc, OHC, single cylinder, liquid-cooled, bore 72.7x60 mm, compression ratio 10.3:1, ignition 5BTDC/1000rpm, spark plug DPR7EA-9.
  • Fuel System: 13 L fuel capacity, PTG carburetor type, main jet 98, venturi dia. 22 mm.
  • Drive System: Dry, centrifugal automatic clutch, OHC chain drive secondary reduction.
  • Brake System: Front and rear disk brakes.
  • Suspension: Front double wishbone, Rear link suspension.
  • Chassis: Steel tube frame construction.
Technical Specifications
keyboard_arrow_down
Document Number / Seller:
27065 / Margaret White
File Size:
9.75 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
ATV
Last updated / verified
Oct 9, 2025

Kymco Manual Features & Content Preview

Kymco Maxxer Mongoose 250, Mongoose 300, MXER 250R ATV repair manual

Model-Specs: Maxxer Mongoose 250, Mongoose 300, MXER 250R // Assembly-Group: Engine / Chassis Logic // Model-Specs: ATV

** Component Rating Architecture
Engine 249 cc 4-stroke, OHC, SOHC
Fuel Capacity 13 L N/A
Bore x Stroke 72.7 x 60 mm N/A
Compression Ratio 10.3:1 N/A
Ignition Timing 5 BTDC/1000 rpm N/A
Front Tire Pressure 0.28 kgf/cm² N/A
Rear Tire Pressure 0.28 kgf/cm² N/A

Following OEM groupings, the manual includes sections on general information, engine removal, lubrication, fuel system, cooling system, brake system, front/rear suspension, and more. It provides comprehensive coverage for these Kymco ATV models.

This manual details the procedures for maintenance, inspection, adjustment, disassembly, and assembly of various vehicle systems. It covers engine specifications, fuel system components, lubrication points, and cooling system maintenance.

Procedures for the drive system, including pulleys and clutch, are thoroughly documented, along with brake system servicing and suspension adjustments. The manual also addresses electrical systems and troubleshooting.

This document documents torque specifications for various components to ensure proper rotational loosening prevention.

Manual FAQ, Purchase & Download Details

What specifications are essential for testing parameters of the Kymco ATV? keyboard_arrow_down

1.4 L engine oil capacity at change and 1.6 L at disassembly are key specifications.

Check the correct diagnostic procedures for troubleshooting ignition system issues. keyboard_arrow_down

Faulty spark plugs, ignition units, or ignition coils are common issues; verify connections and component integrity.

What does the documented fluid capacity requirements indicate for the transmission? keyboard_arrow_down

0.3 liter for transmission oil capacity at change and 0.4 liter at disassembly are documented requirements.

Customer Reviews

Read what our customers say about this Kymco ATV manual and share your own experience.