Now nearly everyone on this site complains about the fact that 4 strokes can blow up randomly and will cost you a fortune to rebuild and you have to do a lot more maintenance on them but I owned a yz426f for 2 years and cleaned the air filter, dropped the oil and replaced it and replaced the oil filter after every 2 rides. I had not a single other problem. it was always a bastard to start but that is just yz426's. now ive also had 2 two-strokes and ill I had with them is problems. they either blew up, i drove for hours to a lovely spot and got the bike off the trailer and it wouldn't bloody start or just random parts like gear levers, kick starters and even mufflers fell off. why do people hate them so much if theyre all i see on the trail, on the moto x track and everywhere else???