Electric start options.
These do have associated uses, such as inflating the canopy first
and then only when one is ready for take, starting the engine.
Terminating the engine in the air and then flying as one would
in conventional paragliding has it's advantages, however the carburetor
may need re-priming if the engine has been off for an extended
period of time.
Normally with the engine on idle, you can still
hear your flight instruments quite sufficiently. (Just give it
rev. every now and again, else the plug may oil up and then it
cuts out just when the accelerator is squeezed).