Stihl MS 661 C-M User Manual

134 MS 661, MS 661 C-M
15. Special Servicing Tools
New Special Tools
Existing Special Tools
No. Part Name Part No. Application
1 Screwdriver 5910 890 2313 Special screw on solenoid valve
2 Press sleeve 1144 893 2400 Installing oil seal
(ignition side / clutch side)
3 Installing sleeve 1144 893 4600 Protecting the oil seal
(ignition side)
4 Screw sleeve
for service tool AS (set)
5910 007 2222
5910 893 2202 Pulling two halves of crankcase together
5 Thrust piece 5910 893 8700 Addition (third hole) for drilled plate
5910 893 2101
No. Part Name Part No. Application
1 Carburetor and engine tester 0000 850 1300 Testing engine and carburetor for leaks
- Nipple 0000 855 9200 Testing carburetor for leaks
- Hose for leakage test 1110 141 8600 Testing carburetor for leaks
- Plug for leakage test 1122 025 2200 Leakage testing decompression valve
2 Sealing plate 0000 855 8106 Testing engine for leaks
3 Installing tool 0000 890 2201 Installing rope guide bushing
4 Clamping strap 0000 893 2600 Compressing the piston rings
5 Locking strip 0000 893 5903 Blocking the crankshaft
6 Screwdriver bit, T 27 x 125 0812 542 2104 Removing and installing spline socket
screws with electric or pneumatic
screwdrivers; tightening down screws with
torque wrench
7 Puller 1106 890 4501 Removing flywheel
8 Assembly drift 1108 893 4700 Removing and installing piston pin
9 Setting gauge 1111 890 6400 Adjusting air gap between the control unit
and flywheel
10 Installing tool 1116 893 4800 Installing rewind spring
11 Assembly tube 1117 890 0900 Attaching springs
12 Press arbor 1118 893 7200 Installing ball bearing (clutch side of
crankcase)
13 Press arbor 1120 893 7200 Installing ball bearing (ignition side of
crankcase)
14 Combination wrench 1129 890 3401 Spark plug

Stihl MS 661 C-M Specifications

General

Idle speed	- RPM
Motor type	2-stroke motor
Chain pitch	3/8 \
Blade length	800 mm
Product color	Black, Grey, Orange
Automatic oiling	Yes
Engine displacement	91.1 cm³
Power source	Gasoline
Sound power level	118 dB
Vibration emission	6.9 m/s²
Sound pressure level	105 dB

Weight and Dimensions

Weight	7400 g