What Should I Do!

[exracer]

At my last race i blew the motor in my 400ex. I havnt broken it down to see whats wrong so i could be something simple. Anyway, i wanted everyones opinion on this. Should i just send my 400ex motor off and have someone build the crap of it, or should i just fix the prob and just get one of the new 450's and do some suspension work and minor engine work to make it race ready? Oh yea, my 400ex already has suspension work on it if that changes ur decision.
Everyone give ur opinion!

-Thanks

[exracer]

help please

[RiPPiNiTuP7]

uh, build up your ex engine then ride it...

[Diedrich]

yeah send it off and have someone build it up

keep the EX & build it up some more....the YZF's arent all wha tthey are cracked up to be...id rather have a cannondale than a YZF