Killing the engine while running

[Carlos motors]

So am I making any damage while my engine is driving or I hold the clutch by pressing once yellow button for shutting off so the engine doesnt die but you get like backfire sound.

 

[crassius]

that would normally be fuel firing in the exhaust - possibly might blow out the seals on crank - not sure, but I wouldn't recommend it

 

[KCvale]

I hold the clutch by pressing once yellow button for shutting off so the engine doesnt die but you get like backfire sound

You press the kill button to kill the engine, not 'kinda' kill it.

 

[Frankenstein]

I wouldn't recommend it but doesn't sound too different than 4 stroking, missing a burn and then igniting it, though hitting the button long enough to almost stall it could build some excess fuel up and cause it all to ignite at once. These engines are barely built capable of withstanding what they are normally put through, not sure testing their limits like that is a great idea..