WHY DO SOME MOTORCYCLES PRODUCE MASSIVE EXHAUST FLAMES OR POP?
Is it good? Does it hurt the bike? And why don’t MotoGP or race bikes produce these size flames often? For starters we need 3 things to produce big exhaust flames OR a lot of popping on deceleration, unburnt fuel, heat and oxygen. While in the days of yesteryear the ‘fuel tune’ lean or rich and an unrestricted / open exhausts were the main factors, today there is more at play. It’s ironic but one of the biggest factors in producing big flames on modern bikes is actually part