Starting; Timing System; Lubrication; Ignition - Husqvarna CR 125 2011 Workshop Manual

GENERAL INFORMATION
CR 125 2011 - WR 125 2011

Engine

Type .............................................................................. single cylinder, 2 stroke
Cooling ...................................................................................................... liquid
Bore ......................................................................................... mm 54 (2.12 in.)
Stroke ................................................................................... mm 54,5 (2.14 in.)
Displacement .............................................................. cm 124,82 (7.61 cu. in.)
3
Compression ratio (with closed ports) ........................................................8,8:1

Starting

Type..................................................................................................... kick start

Timing system

Type ....................................... reed valve at intake in the crankcase and H.T.S.
valve with mechanical control at the exhaust

Lubrication

Motore ..................................... 4% (1:25) of oil-gasoline mix during running in;
NOT LESS than 3% (1:33) when running in is over
Primary drive transmission/Gearbox ...... by the oil contained in the crankcase

Ignition

Type .......... ....... electronic digital capacitor-discharge type, with variable advance
Spark plug type..............................................CHAMPION QN 84/NGK BR9EG
Spark plug gap ................................................................... 0,6 mm (0.0236 in.)

Fuel system

Type ..................................................................... Carburettor "Mikuni" TMX 38
Venturi diameter ...................................................................... mm 38 (1.50 in.)
High speed jet (CR) ......................................................................................460
High speed jet (WR) .....................................................................................380
Low speed jet (CR) .........................................................................................35
Low speed jet (WR) ........................................................................................15
Starting jet (CR) ..............................................................................................80
Starting jet (WR) .............................................................................................50
Main nozzle ........................................................................................ R-8 (914)
Floater (n°2) ...............................................................................................g 6,1
Throttle valve (CR) ........................................................................................4,0
Throttle valve (WR) ........................................................................................5,0
Metering pin ...........................................................................................6BFY43
Metering pin slot (CR)................................................................................... 3rd
Metering pin slot (WR) ..................................................................................2nd
Idle mixture adjusting screw (CR).....................................................1+1/4 turns
Idle mixture adjusting screw (WR) ....................................................1+1/2 turns

Primary drive

Drive pinion gear ....................................................................................... Z 22
Clutch ring gear .......................................................................................... Z 71
Transmission ratio .....................................................................................3,227

Clutch

Type .........................................oil bath multiple disc clutch, mechanical control

Transmission

Type ............................................................................ constant mesh gear type
Workshop Manual Ed. 06-2011
A.3