Specifications - Stihl MS 650 Instruction Manual

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Specifications

EPA / CEPA:
The Emission Compliance Period
referred to on the Emissions
Compliance Label indicates the number
of operating hours for which the engine
has been shown to meet Federal
emission requirements.
Category:
A = 300 hours,
B = 125 hours,
C = 50 hours
CARB:
The Emission Compliance Period used
on the CARB-Air Index Label indicates
the terms:
Extended = 300 hours,
Intermediate = 125 hours,
Moderate = 50 hours
Engine
STIHL single cylinder two-stroke engine
Displacement
MS 650: 5.10 cu in (83.7 cm
MS 660: 5.59 cu in (91.6 cm
Bore
MS 650: 2.05 in (52 mm)
MS 660: 2.13 in (54 mm)
Stroke
MS 650: 1.57 in (40 mm)
MS 660: 1.57 in (40 mm)
Idle speed
2,500 rpm
60
Ignition System
Electronic magneto ignition
Spark plug (suppressed):
Bosch WSR 6 F, NGK BPMR 7 A,
Electrode gap 0.02 in (0.5 mm)
Fuel/Oil System
Carburetor,
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity,
1.74 US pt (0,825 l)
Fuel mix,
See "Fuel"
Chain lubrication,
Fully automatic, speed-controlled oil
pump with rotary piston. Additional
manual oil flow control.
Oil tank capacity,
0.76 US pt (0.360 l)
3
)
3
Weight
)
MS 650: 16.1 lb (7.3 kg)
MS 660: 16.1 lb (7.3 kg)
MS 660 with handle
heating: 16.5 lb (7.5 kg)
Cutting Attachment
Recommended cutting attachments
for compliance with § 5.11 of ANSI
Standard B 175.1-2000
(see page 14 of this Manual):
STIHL reduced kickback bar
(with green label) for 3/8" pitch:
Rollomatic with sprocket nose
16, 18 or 20 in (40, 45 or 50 cm)
1)
STIHL low kickback chain
(with green label) for 3/8" pitch:
3/8" (9.32 mm) Rapid-Micro 2
(33 RM 2, 36 RM 2), Rapid Super C3
(33 RSC 3, 36 RSC 3)
Chain sprocket:
8-tooth for 3/8" pitch
In order to comply with the kickback
performance requirements of § 5.11
of ANSI Standard B 175.1-2000,
do not use replacement saw chain
unless it has been designated as
meeting the ANSI § 5.11 requirements
on this specific powerhead, or has been
designated as "low kickback" saw
1)
chain in accordance with the ANSI B
175.1-2000 standard.
1)
See definition of "low kickback
chain" on page 17 of this Manual.
MS 650, MS 660