Technical Data - Husqvarna WRE 125 2011 Specifications - Operation - Maintenance

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TECHNICAL DATA

ENGINE
Type . . . . . . . . . . . . . . . . . . . . single cylinder, 2 stroke
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . liquid
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.12 in.
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.14 in.
Displacement . . . . . . . . . . . . . . . . . . . . . . . 7.61 cu.in.
Compression ratio (with closed ports) . . . . . . . . . .8.8:1
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .kick start
TIMING SYSTEM
Type ... . . . . reed valve at intake in the crankcase and
H.T.S. valve with mechanical control at the exhaust
LUBRICATION
Engine . . . . . . . . . . . . . . . . . . . . . . . . by electric pump
Primary drive transmission/Gearbox . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .by the oil contained in the crankcase
IGNITION
Type . . . . . . . . . . . . . . . . . . . . . . . . . . .electronic C.D.I.
Spark plug type . . . . . . CHAMPION QN 84/NGK BR9EG
Spark plug gap . . . . . . . . . . . . . . . . . . . . . . .0.0236 in.
FUEL SYSTEM
Type . . . . . . . . . . . . Carburettor DELL'ORTO VHST 28-CS
Venturi diameter . . . . . . . . . . . . . . . . . . . . . . . .1.10 in.
High speed jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
Low speed jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Starting jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Main nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . HN 268
Floater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.014 lb
Throttle valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Metering pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D 48
Metering pin slot . . . . . . . . . . . . . . . . . . . . . . . .2nd (*)
Idle mixture adjusting screw . . . . . . . . . . . 1+1/2 turns
(*): with washer between retainer and throttle valve
PRIMARY DRIVE
Drive pinion gear . . . . . . . . . . . . . . . . . . . . . . . . . Z 22
Clutch ring gear . . . . . . . . . . . . . . . . . . . . . . . . . . Z 72
Transmission ratio . . . . . . . . . . . . . . . . . . . . . . . . 3.272
CLUTCH
Type . . .oil bath multiple disc clutch, mechanical control
TRANSMISSION
Type . . . . . . . . . . . . . . . . . . . . constant mesh gear type
Transmission ratio
1st gear . . . . . . . . . . . . . . . . . . . . . . .2.692 (z 35/13)
2nd gear . . . . . . . . . . . . . . . . . . . . . . .1.800 (z 27/15)
3rd gear . . . . . . . . . . . . . . . . . . . . . . .1.333 (Z 24/18)
4th gear . . . . . . . . . . . . . . . . . . . . . . .1.100 (Z 22/20)
5th gear . . . . . . . . . . . . . . . . . . . . . . .0.954 (Z 21/22)
6th gear . . . . . . . . . . . . . . . . . . . . . . .0.869 (Z 20/23)
SECONDARY DRIVE (WRE)
Transmission sprocket . . . . . . . . . . . . . . . . . . . . . Z 13
Rear wheel sprocket . . . . . . . . . . . . . . . . . . . . . . . Z 49
Transmission ratio . . . . . . . . . . . . . . . . . . . . . . . 3.769
SECONDARY DRIVE (SMS)
Transmission sprocket . . . . . . . . . . . . . . . . . . . . . . Z 14
Rear wheel sprocket . . . . . . . . . . . . . . . . . . . . . . . Z 49
Transmission ratio . . . . . . . . . . . . . . . . . . . . . . . . 3.500
Transmission chain dimensions . . . . . . . . . .5/8"x1/4"
FINAL RATIOS
(WRE)
1st gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33.211
2nd gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.204
3rd gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.447
4th gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.569
5th gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.775
6th gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.727
FINAL RATIOS (SMS)
1st gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30.839
2nd gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.618
3rd gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.273
4th gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.600
5th gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.934
6th gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.960
CHASSIS
Type single frame, in circular sectioned tubes, in steel;
rear steel chassis.
FRONT SUSPENSION
Type . . . . "Upside-down" telescopic hydraulic front fork with
advanced axle; . . . . . . . . . . . . . . . . . . . .tubes ø 1.57 in.
Legs axis stroke . . . . . . . . . . . . . . . . . . . . . . .10.24 in.
REAR SUSPENSION
Type . .progressive with hydraulic single shock absorber
(spring preload adjustment)
Wheel stroke . . . . . . . . . . . . . . . . . . . . . . . . . .10.71 in.
FRONT BRAKE
Type . . . . . . . . . . . . . . . . . . . . . . fixed disc Ø 10.24 in.
with hydraulic control and floating calliper
REAR BRAKE
Type . . . . . . . . . . . . . . . . . . . . . . . . fixed disc Ø8.66 in.
with hydraulic control and floating calliper
RIMS
Front (WRE) . . . . . . . . . . . . . . . .in light alloy: 1.6x21"
Front (SMS) . . . . . . . . . . . . . . .in light alloy: 2.50X17"
Rear (WRE) . . . . . . . . . . . . . . . .in light alloy: 2.15x18"
Rear (SMS) . . . . . . . . . . . . . . . .in light alloy: 3.50X17"
EN - 7

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