Carburetor Heating System Troubleshooting Chart - Stihl MS 261 User Manual

13.2

Carburetor Heating System Troubleshooting Chart

Measure resistance of heating
temperature = +20°C (68°F)
Install new thermostatic
Carburetor heating element
Circuit Diagram
G
132
element at
Resistance
approx. 12 Ω?
yes
switch, b 13.1.2
in order
1
2
3
no
G Generator
1 Rear handle
2 Handlebar
3 Heater switch
4 Thermostatic switch
4
5 Heating element (carburetor)
5
Install new heating
element, b 13.1.2
MS 261, MS 261 C