Stihl MS 661 C-M User Manual

73MS 661, MS 661 C-M
8.7.4 Ignition – no spark
no
– Set the Master Control
lever to } .
Troubleshooting
completed
– Check flywheel,
(two pairs of poles?) b 7.7
Combination
in order?
– Check the air gap
between the control unit
and flywheel,
b 7.3
Check correct combination of
control unit / flywheel
yes
Air gap
in order?
– Check ignition system
with aid of Ignition System
Troubleshooting Chart,
b 7.13
– Set correct air gap, b 7.3
no
No spark
yes
no
yes
Can engine
be started?

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