2004 Husqvarna CR125

2004 Husqvarna CR125

General Specifications

ModelHusqvarna CR125
Year2004
CategoryMotocross
Engine TypeSingle-cylinder, liquid-cooled, 2-stroke with reed-valve induction and mechanically controlled H.T.S. exhaust power valve
Weight94.8 kg dry

Engine

Displacement124.82 cc
Bore x Stroke54.0 x 54.5 mm
Compression Ratio8.8:1 with ports closed
Fuel SystemMikuni TMX 38 mm carburettor | Replacement Options
IgnitionDigital capacitor-discharge ignition with variable advance
Spark PlugNGK BR9EG or Champion QN84
Spark Plug Gap0.6 mm
Cooling SystemLiquid cooled with pump circulation
Starting SystemKick starter

Transmission

Transmission6-speed manual
ClutchWet multi-plate mechanically operated clutch
Final DriveChain; 13-tooth front / 50-tooth rear sprockets

Dimensions

Overall Length2165 mm
Overall Width820 mm
Overall Height1300 mm
Wheelbase1460 mm
Ground Clearance370 mm
Seat Height980 mm
Fuel Capacity8.5 L

Chassis

FrameSingle-beam steel frame using circular-section tubes with light-alloy rear subframe
Front Tyre80/100-21 | Tyre Size Guide
Rear Tyre100/90-19 | Tyre Size Guide

Suspension

Front Suspension45 mm Marzocchi upside-down hydraulic fork, adjustable for compression and rebound | Fork Oil Levels
Front Suspension Travel300 mm
Rear SuspensionSachs hydraulic monoshock with progressive Soft Damp linkage, adjustable for compression, rebound and spring preload
Rear Suspension Travel320 mm
Fork OilAGIP Fork 7.5; SAE 5 recommended for very cold climates; oil level 80 mm

Brakes & Wheels

Front Brake260 mm hydraulic disc with floating caliper
Rear Brake220 mm hydraulic disc with floating caliper
Front Wheel Size1.60 x 21 in Takasago Excel
Rear Wheel Size2.15 x 19 in Takasago Excel

Service Data

Fuel TypePremium unleaded petrol, 98 RON
Premix Information4% oil mixture during running-in (25:1); not less than 3% after running-in (approximately 33:1) | Premix Calculator
Gearbox Oil0.8 L AGIP City 4T or equivalent wet-clutch-compatible motorcycle oil
Air FilterOiled foam air filter
Service NotesCompetition motocross model. Regularly service the air filter, gearbox oil, piston and rings, reed valve, H.T.S. power-valve system, chain, wheel bearings and suspension linkage. Correct fork oil level and linkage lubrication are especially important on older examples.

2004 Husqvarna CR125 – Another Refinement of the Italian Two-Stroke

The 2004 Husqvarna CR125 was primarily an evolutionary model rather than an all-new generation. Husqvarna retained the established Italian-built 124.82cc two-stroke engine, six-speed gearbox, steel chassis and long-travel European suspension package, with the year's changes centred more on detail refinement and appearance than a fundamental redesign.

Its engine continued to use a 54.0 x 54.5 mm bore and stroke, reed-valve induction, the mechanically controlled H.T.S. exhaust power valve and a 38 mm Mikuni TMX carburettor. The CR125 remained very much a competition-focused 125, rewarding riders who kept the engine spinning and the carburation correctly sorted. Owners dealing with worn or modified induction systems can compare replacement carburettor options when rebuilding the fuel system.

The chassis used a steel single-beam layout with a light-alloy rear subframe. Up front was a 45 mm Marzocchi inverted fork with 300 mm of travel, while a Sachs shock and progressive linkage provided 320 mm at the rear. Correct oil level is critical when servicing these forks, and the MXOwners fork oil reference is useful when checking setup information.

For today's owner, condition is more important than mileage. The H.T.S. power valve, piston and rings, wheel and linkage bearings, air-filter sealing and suspension condition all deserve careful inspection. The MXOwners Bearing Finder can help when identifying replacements during a chassis rebuild. The 2004 CR125 remains a good example of Husqvarna's Italian period: light, distinctive and less common than its Japanese rivals, yet still a serious race-bred 125 two-stroke.