If your gettting a new blaster then you wont have to rebuild for a long time. if you take care of it and do the proper maintenance and clean it, you should rebuild like 1x a year. maybe longer. the 300ex is crap. dont get it, you will be very upset that you did. Especially when A BLASTER CRUISES BY YOU!!

 

word up mroux! Blasters are da bomb, and 2-strokes rule!

 

4 strokes sux azz! 2 stroke got the power baby........ don't mess up and get the 300ex if you want a 4 stroke get the 400ex.. cmon dude use your head.