Stihl MS 661

69MS 661, MS 661 C-M
8.7 M-Tronic Troubleshooting Chart
8.7.1 Circuit Diagram
1 Stop switch
2 Choke switch
3 Diagnostic socket
4 Switch unit (choke module)
5 Solenoid valve (in carburetor)
6 Spark plug
7 Ignition lead
8 Control unit
1166RA427 TG
5
4
3
2
1
A
B
7
6
8