Symbol 0243 from ISO 7000 - Title/Meaning: Choke; cold starting aid 
Function/description: To identify the control for the choke (low temperature starting aid), which adjusts the fuel-to-air ratio in the combustion chamber. To indicate the operational status of the choke.
Own work using: iso.org/obp/graphics/grs/bf3217e9-2728-4e4e-b957-fde027f9dd1c 200.png
Vectorization:  Mrmw