2009 Husqvarna CR125

2009 Husqvarna CR125

General Specifications

ModelHusqvarna CR125
Year2009
CategoryMotocross
Engine TypeSingle-cylinder, liquid-cooled, 2-stroke with reed-valve induction and mechanically controlled H.T.S. exhaust power valve
Weight93 kg dry

Engine

Displacement124.82 cc
Bore x Stroke54.0 x 54.5 mm
Compression Ratio8.8:1 with exhaust ports closed
Fuel SystemMikuni TMX 38 mm carburettor with reed-valve induction | Replacement Options
IgnitionElectronic CDI with variable advance
Spark PlugNGK BR9EG or Champion QN84
Spark Plug Gap0.6 mm
Cooling SystemLiquid cooled with water-pump circulation and twin radiators
Starting SystemKick starter

Transmission

Transmission6-speed constant-mesh manual
ClutchWet multi-plate, mechanically operated; 7 driving and 6 driven plates
Final DriveChain; 13-tooth front / 50-tooth rear sprockets

Dimensions

Overall Length2165 mm
Overall Width840 mm
Overall Height1320 mm
Wheelbase1460 mm
Ground Clearance370 mm
Seat Height990 mm
Fuel Capacity9.5 L

Chassis

FrameSteel single-tube cradle frame with round-section tubing and light-alloy rear subframe
Front Tyre80/100-21 Pirelli MT32A | Tyre Size Guide
Rear Tyre100/90-19 Pirelli MT32 | Tyre Size Guide

Suspension

Front Suspension50 mm Marzocchi upside-down telescopic hydraulic fork with compression and rebound adjustment | Fork Oil Levels
Front Suspension Travel300 mm
Rear SuspensionSachs Progressive Soft Damp hydraulic monoshock with spring preload, rebound and dual compression adjustment
Rear Suspension Travel296 mm
Fork OilAGIP Fork 7.5 (SAE 7.5); SAE 5 permitted for very cold climates

Brakes & Wheels

Front Brake260 mm Brembo fixed hydraulic disc with floating 2-piston caliper
Rear Brake240 mm Brembo floating hydraulic disc with floating 2-piston caliper
Front Wheel Size1.60 x 21 in light-alloy rim
Rear Wheel Size2.15 x 19 in light-alloy rim

Service Data

Fuel TypePremium unleaded petrol, minimum 95 RON
Premix Information3% oil mixture, approximately 33:1 | Premix Calculator
Gearbox Oil0.8 L motorcycle transmission oil suitable for wet clutches
Air FilterOiled foam air filter
Service NotesCompetition motocross model. Regularly clean and oil the air filter, inspect the piston, rings, reed valve and H.T.S. power-valve system, change transmission oil frequently and check chain, wheel bearings, steering-head bearings and suspension linkage after race use.

2009 Husqvarna CR125 – Bigger Marzocchi Forks for the Italian 125

The 2009 Husqvarna CR125 was an evolutionary development of the substantially revised 2008 machine rather than a completely new generation. The basic 124.82cc two-stroke engine, six-speed gearbox and steel chassis remained, but Husqvarna continued refining the suspension and chassis package while keeping the CR125 alive as one of the increasingly rare European 125cc motocross machines.

The most obvious technical change was at the front. The CR125 moved to a large 50 mm Marzocchi upside-down fork with adjustable compression and rebound damping and 300 mm of travel. At the rear, a Sachs Progressive Soft Damp shock provided extensive adjustment through Husqvarna's linkage system. Owners rebuilding the front suspension can use the MXOwners fork oil reference alongside the factory SAE 7.5 oil specification.

The engine retained the familiar 54.0 x 54.5 mm bore and stroke, mechanically controlled H.T.S. exhaust power valve and 38 mm Mikuni TMX carburettor. As with any competition 125, correct jetting and an airtight intake system are essential, and the MXOwners carburettor replacement options can help when original components are worn beyond service.

For owners today, the 2009 CR125 deserves careful inspection of the piston and rings, power-valve mechanism, reed petals, crank bearings and transmission oil, along with the usual wheel, steering-head and linkage bearings. Its 21-inch front and 19-inch rear wheel sizes remain conventional motocross dimensions, and modern replacements can be checked with the MXOwners tyre size guide. The 2009 CR125 remains a distinctive late-period Italian Husqvarna: light, mechanically straightforward and built at a time when few manufacturers were still seriously developing the traditional 125 two-stroke motocrosser.