Kawasaki FH641V User Manual
OVERHEAD V -V ALVE V -TWIN
DUAL ELEMENT AIR CLEANER
PRESSURIZED LUBRICA TION SYSTEM
FULL TRANSISTOR IGNITION
675cm
3
,15.7kW (21.0Hp) / 3600rpm
Let the good times roll.
PERFORMANCE CURVES
TORQUE
30
40
50
60
TORQUE
ft.lbs
N-m
25
30
35
40
45
6
8
10
12
18
14
8
10
12
22
16
20
14
kW
16
Hp
OUTPUT
2000 3000
3600
ENGINE SPEED rpm
MAXIMUM OUTPUT
RECOMMENDED
MAXIMUM OUTPUT
Engine Type Forced air cooled 4-stroke, vertical
shaft, OHV gasoline engine
Cylinder Layout 90°V-Twin
Bore x Stroke 75.2 x 76mm ( 2.96 x 2.99in. )
Piston Displacement 675cm3( 41.2cu.in. )
Compression Ratio 8.1 : 1
Max.Horse Power 15.7kW ( 21.0Hp ) / 3600rpm
Max.Torque 52.1N-m ( 38.4ft.lbs ) / 2400rpm
Direction of Rotation Counter-clockwise facing the PTO shaft
Fast Idle Speed 3600rpm
Slow Idle Speed 1550rpm
Min.Specific Fuel
329gr / kW-hr ( 245gr / Hp-hr )
Consumption Ratio
Carburetor
Twin barrel, Float type with fixed main jet
Fuel Pump Pulse type
Oil Capacity 1.8litre ( 1.9US.qt. ) with Filter
Ignition Flywheel magneto transistor type
Plug
NGK BPR4ES
RFI Per Canada and U.S.A. requirements
Starter BENDIX type electric starter
Governor Mechanical governor
Lubrication Full pressure lubrication with spin-on
oil filter
Air Cleaner Dual element
Muffler Low tone type
Charging Coil 12V-13A with Regulator
Net Weight 40.0kg ( 88.2Ibs ) without Muffler
Dimension 458 x 430 x 461mm without Muffler
( L x W x H ) ( 18.03 x 16.93 x 18.15in. )
Specifications subject to change without notice.
GENERAL SPECIFICATIONS
FH641V : DIMENSIONAL SPECIFICATIONS Unit : mm ( in. )
Ø7.9 (0.31
Ø6.4 (0.25
)
18.03
(
458
)
172.5 (6.79
)
)
)
12.78
(
324.5
215 (8.46
V-VALVE
317.5 (12.5)
)
)
3.54
(
0.75
(
90
19
LOW IDLE
HIGH IDLE
21.021.0
)
430 (16.93
533.5 (21.01
CHOKE CLOSE
)
183 (7.20
)
179 (7.05
)
(
5.0
7
Ø12
)
)
243.5 (9.59
)
V-VALVE
STUD BOLT FOR MUFFLER
CABLE STROKE
APPROX. 23mm (0.91) FOR THROTTLE
( LOW IDLE ~ HIGH IDLE )
9.5mm (0.37) FOR CHOKE
( HIGH IDLE ~ CHOKE CLOSE )
4-M8 x 1.25
)
)
5.24
5.04
(
(
133
128
)
)
20.83
(
12.62
529
(
320.5
45°
)
Ø35
1.38
(
)
8.21
)
(
13.43
(
208.5
341
)
)
3.43
(
2.83
(
87
72
4.3 (0.17
V-VALVE
)
0.22
(
5.5
)
0.75
(
19
)
R1.5
(
0.06
213 (8.39
16 (0.63
WARNING
Ø69
(
)
3.15
)
(
80
)
2.72
)
)
)
64
2.52
(
10 (0.39
ENGINE MAINTENANCE
IMPORTANT ENGINE INFORMATION
Ø35 (1.38
7/16-20UNF
DEPTH 28 (1.10
Ø25.4 (1.00
)
)
)
15.00
(
11.77
(
381
299
)
)
)
0.75
(
19
)
5.30
(
0.79
(
4-20
134.5
)
3.15
(
)
)
80
PCD
°
12
)
9.57
(
243
54
Ø2
)
2.54
(
64.5
45°
)
0
.
(
10
7-Ø8.7 (0.34
HOLES
35°
7.8 (0.31
35°
)
AS01
)
)
R1.5 (0.06
)
Ø35 (1.38
7/16-20UNF
DEPTH 28 (1.10
Ø28.5 (1.12
)
0.98
(
25
)
)
)
)
3.94
(
3.31
(
100
84
35°
)
6.3 (0.25
)
0.86
(
35°
)
112 (4.41
4
5
°
)
118 (4.65
)
45°
21.8
6.3 (0.25
KAWASAKI HEAVY INDUSTRIES,LTD.
Consumer Products & Machinery Company
P/N99909-2211 Printed in Japan 02-04(71)
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