Technical Data; Timing System; Lubrication; Ignition - Husqvarna NUDA 900 R 2012 Workshop Manual

GENERAL INFORMATION
NUDA 900 2012/2013 - NUDA 900 R 2012/2013
Engine
Type ....................... inline twin cylinder, 4 stroke, with four valves per cylinder
Cooling .............................................................................liquid and electric fan
Bore ......................................................................................... 3,31 in. (84 mm)
Stroke ...................................................................................... 3,19 in. (81 mm)
Displacement ........................................................................ 54,8 in3 (898 cm )
3
Compression ratio ......................................................................................13:1
Starting .................................................................................................. electric
Type of fuel ............................................................. unleaded fuel 95ROZ/RON

Timing system

type ................................................ double overhead camshaft chain operated;
4 valves per cylinder
Valve clearance (with engine cold)
Intake .........................................................0,0091 ÷ 0,013 in. (0.23 ÷ 0.33 mm)
Exhaust...................................................0,0118 ÷ 0,0161 in. (0.30 ÷ 0.41 mm)

Lubrication

type ........................................................... dry sump oil circuit with built-in tank,
cartridge filter and oil/water heat exchanger

Ignition

type .....................................Electronic with adjustable advance (digital control)
Spark plug type......................................................................"NGK" LMAR8C-9
Spark plug electrode gap ...........................0,0315 ÷ 0,0354 in. (0.8 ÷ 0.9 mm)

Fuel system

type ...............................................................................Electronic injection feed

Primary drive

Drive gear on crankshaft ............................................................................ Z 35
Driven gear on clutch housing .................................................................... Z 68
Transmission ratio ....................................................................................1.943

Clutch

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

Transmission

type ............................................................................. constant mesh gear type
Transmission ratio
1st gear......................................................................................... 2.462 (32/13)
2nd gear ....................................................................................... 1.750 (28/16)
3rd gear ........................................................................................ 1.381 (29/21)
4th gear ........................................................................................ 1.174 (27/23)
5th gear ........................................................................................ 1.042 (25/24)
6th gear ........................................................................................ 0.960 (24/25)
Workshop Manual Ed. 11-2011
A.3