Technical Data - Husqvarna 2009 TC 250 Owner's Manual

MUM1-250_310_450_510_2009_GB

TECHNICAL DATA

ENGINE
Type .....................................................single cylinder, 4 stroke
Cooling............................................................................liquid
Bore .............................................................................3,11 in.
Stroke ......................................................................2,00 in.
Displacement ........................................................15.22 cu. in.
Compression ratio...........................................................13,6:1
Starting ................... kick start (with automatic decompressor)
TIMING SYSTEM
Type ........4 titanium valves, in a radial arrangement, operated
through bowls by two overhead camshafts driven by a
combined chain/gears system.
Valve clearance (with engine cold)
Intake ........................................................................0,006 in.
Exhaust......................................................................0,008 in.
LUBRICATION
Type... wet crankcase, lobe pump and cartridge and mesh filters
IGNITION
Type ...........Electronic, inductive or capacitive discharge, with
adjustable advance (digital control)
Spark plug type ......................................................NGK CR9EB
Spark plug gap................................................0.027÷0.031 in.
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FUEL SYSTEM
Type....................................Keihin" FCR-MX 39 with acceleration pump
and throttle position sensor
Venturi diameter ......................................................................1.53 in.
High speed jet ..............................................................................190
Low speed jet ................................................................................38
Starting jet .....................................................................................72
Starting air jet..........................................................................0.08 in.
Main air jet ...................................................................................200
Low air jet .....................................................................................100
Pump jet .........................................................................................35
Floater ......................................................................................g 11.2
Throttle piston..............................................................................15 M
Metering pin ............................................................................OBDVR
Metering pin slot ............................................................................5th
Idle mixture adjusting screw ......................................... rounds 1+1/2
PRIMARY DRIVE
Drive pinion gear- Clutch ring gear ...........................................Z 17- Z 54
Transmission ratio ............................................................................3,176
CLUTCH
Type...............................oil bath multiple disc clutch, hydraulic control
TRANSMISSION
Type ...............................................................constant mesh gear type
Transmission ratio
1st gear. .....................................................................2,142 (z 30/14)
2nd gear ....................................................................1,750 (z 28/16)
3rd gear ....................................................................1,450 (z 29/26)
4th gear. ....................................................................1,227 (z 27/22)
5 th gear.....................................................................1,041 (z 25/24)
SECONDARY DRIVE
Transmission sprocket- Rear wheel sprocket ..........................Z 13- Z 50
Transmission ratio ......................................................................3,846
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