Originally Posted by Triple L
When did they rework they valve train? I bought a 2013 super z with the 37 and now after reading this thread I'm very worried, myn backfires like crazy most times when you turn it off
Posted via Mobile Device
Every Kawi I've had is just fine and doesn't do the backfiring thing. I drop it back to idle and let it run like that for at least 30 full seconds before turning it off.