Stihl MS 661 C-M User Manual

136 MS 661, MS 661 C-M
16. Servicing Aids
No. Part Name Part No. Application
1 STIHL multipurpose grease 0781 120 1109
2 Lubricating grease (225 g tube) 0781 120 1111 Oil seals, sliding and bearing points
3 STIHL special lubricant 0781 417 1315 Bearing bore in rope rotor, rewind spring in fan
housing
4 STIHL press fluid OH 723 0781 957 9000 Rubber components, AV buffers
5 Medium-strength threadlocking
adhesive (Loctite 242)
0786 111 2101
6 High-strength threadlocking
adhesive (Loctite 270)
0786 111 2101
7 High-strength threadlocking
adhesive up to 250°C
(Loctite 272)
0786 111 2101
8 Standard commercial solvent-
based degreasant containing no
chlorinated or halogenated
hydrocarbons
Cleaning sealing faces and carburetor,
crankshaft stubs and flywheel taper

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