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RM-4000/4000SI/5000
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Mass :
unit without cutting attachment, empty tank kg 11.1 (11.4) 11.1
unit with specified cutting attachment, empty tank kg 11.5 (11.8) 11.5
unit with specified cutting attachment, full tank kg 12.5 (12.8) 12.5
Volume :
fuel tank L 1.3
Cutting attachment :
specified blade diameter mm 255
specified blade thickness mm 2.0
number of cutting teeth 3
blade centre hole diameter mm 25.4
blade rotational speed at maximum allowable
engine speed r/min 10,000
Gear ratio :
gear ratio and lubrication 1.33 reduction and good quality lithium grease
Rotational direction of output shaft seen
from above : Anticlockwise
External dimensions :
length mm 2,770
width mm 360
height mm 560
Engine :
type Air cooled two stroke single cylinder
engine displacement mL(cm
3
) 42.7 51.7
maximum shaft brake power, measured in
accordance with ISO 8893 kW 1.47 1.80
engine speed at maximum engine power r/min 7,500 8,500
recommended maximum engine speed r/min 10,000 10,500
output shaft speed r/min -
recommended engine idling speed r/min 2,500
engine speed at beginning of clutch engagement r/min 3,600
carburettor Diaphragm type
ignition Flywheel magneto - C.D.I. system
spark plug NGK BPMR7A CHAMPION RCJ-6Y
starter Recoil starter (RM-4000SI ; START)
clutch Automatic centrifugal clutch
Fuel : Regular grade petrol. Minimum 89 Octane
unleaded petrol is recommended. Do not use fuel
containing methyl alcohol or more than 10 % of
ethyl alcohol.
oil Two stroke, air-cooled engine oil. ISO-L-EGD
Standard (ISO/CD 13738), JASO FC grade and
ECHO Premium 50 : 1 oil.
ratio 50 : 1 (2 %)
fuel consumption at maximum engine power L/h 1.22 1.24
specific fuel consumption at maximum engine
power g/(kW•h) 612 510
Sound pressure level : (EN 27917) LpAav = dB(A) 93 (93) 100
Guaranteed sound power level :
(2000/14/EC) LWA = dB(A) 107 (107) 111
Vibration levels : (ISO 7916)
idling m/s
2
0.8 0.6
racing m/s
2
2.7 5.3
SPECIFICATIONS
RM-4000 (SI) RM-5000
GB
Specifications, descriptions and illustrative material in
this literature are as accurate as known at the time of
publication, but are subject to change without notice.
Illustrations may include optional equipment and
accessories, and may not include all standard
equipment.