TECHNICAL DATA
ENGINE
Type .....................................................single cylinder, 4 stroke
Cooling.......................liquid with electric fan on TE-SMR models
Bore (310)................................................................3,27 in.
Bore (450-510)..............................................................3.81 in.
Stroke (310) ..............................................................2.17 in.
Stroke (450) .................................................................2.39 in.
Stroke (510)..................................................................2.67 in.
Displacement (310) .............................................18,16 cu. in.
Displacement (450)................................................27.39 cu. in.
Displacement (510) ................................................30.56 cu. in
Compression ratio...........................................................12,9:1
Starting (TC)............. kick start (with automatic decompressor)
Starting (SMR)...............electric (with automatic decompressor)
Starting (TE-TXC) ...............electric and kick start (with automatic
decompressor)
TIMING SYSTEM
Type....................................double overhead camshaft; 4 valve
Valve clearance (with engine cold)
Intake ..........................................................0.004 ÷ 0,006 in.
Exhaust........................................................0.006 ÷ 0,008 in.
LUBRICATION
Type .......Dry sump with two oil pump rotor and cartridge filter
IGNITION
Type ...........Electronic, inductive (TE-SMR) or capacitive (TC-TXC)
discharge, with adjustable advance (digital control)
Spark plug type ......................................................NGK CR8EB
Spark plug gap...........................................................0.027 in.
8
FUEL SYSTEM
Type (TE-SMR) .................................................Electronic injection feed
Type (TC 450, TXC 450-510) .Keihin" FCR-MX 41 with acceleration pump
and throttle position sensor
Venturi diameter ......................................................................1.61 in.
High speed jet ...............................................................................180
Low speed jet .................................................................................45
Starting jet .....................................................................................85
Starting air jet. .........................................................................0.16 in.
Main air jet ...................................................................................200
Low air jet .....................................................................................100
Floater ......................................................................................g 11.2
Throttle piston..............................................................................15 M
Metering pin ............................................................................OBDVR
Metering pin slot ............................................................................5th
Idle mixture adjusting screw ................................................. rounds 2
PRIMARY DRIVE
Drive pinion gear- Clutch ring gear (TE 310)...............................Z 24- Z 88
Drive pinion gear- Clutch ring gear (450-510)............................Z 23- Z 63
Transmission ratio (310)...................................................................3,666
Transmission ratio (450-510)............................................................2,739
CLUTCH
Type...............................oil bath multiple disc clutch, hydraulic control
TRANSMISSION
Type ...............................................................constant mesh gear type
Transmission ratio (TE-SMR-TXC)
1st gear......................................................................2,000 (z 28/14)
2nd gear .....................................................................1,611 (z 29/18)
3rd gear .....................................................................1,333 (z 24/18)
4th gear.....................................................................1,086 (z 25/23)
5 th gear....................................................................0,920 (z 23/25)
6 th gear ....................................................................0,814 (z 22/27)
Transmission ratio (TC)
1st gear......................................................................1,866 (z 28/15)
2nd gear ....................................................................1,444 (z 26/18)
3rd gear ....................................................................1,263 (z 24/19)
4th gear. ....................................................................1,086 (z 25/23)
5 th gear....................................................................0,954 (z 21/22)
SECONDARY DRIVE
Transmission sprocket- Rear wheel sprocket (TE 310).............Z 13- Z 50
Transmission sprocket- Rear wheel sprocket (TE-TXC 450-510)...Z 13- Z 47
Transmission sprocket- Rear wheel sprocket (TC 450) ............Z 14- Z 50
Transmission sprocket- Rear wheel sprocket (SMR 450-510)...Z 15- Z 42
Transmission ratio (TE 310).........................................................3,846
Transmission ratio (TE-TXC 450-510)............................................3,615
Transmission ratio (TC 450). .......................................................3,571
Transmission ratio (SMR 450-510).............................................. 2,800