Last week, when I was driving my motor cycle, I heard bursting soundings most possibly from my bike. Initially, I looked around other vehicles but as I did not see anything unusual, I thought that the sound is from my bike exhaust. Earlier also I saw similar bursting sounds from other vehicles exhaust pipe along with short duration flame.
Imagine if vehicles like fire tender or ambulance with such exhaust enter flammable areas. Instead of saving the property or rescuing the persons, the sparks from these vehicles can initiate fire and explosion.