125 to 250 engine swap possible?

Hey guys I have a 2006 KTM 125SX and it runs perfect not am issue since rebuilt. Looking for a little more power however, I'm curious if I can find a 250 SX motor what would I need to drop it into the 125's frame?

You are better off selling the 125 and buying a 250, would be much faster and cheaper in the long run and would actually be reliable.

it wont fit, a 200 would fit

Ok guys thanks for your help, think it may kill me to part with the ole girl though lol.

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