2000 yz250 wanting to get power

I have a 2000 yz250 I'm wanting to try and get more power out of my bike any suggestions ?

Boyesen rad valve would be a start. But if you wanted to get more into it you could get to ported, bored out, or cylinder base ruduced to give more compression

Send head to rb for squish correction to start. Is the motor fresh? Spent much time sorting out the jetting? Most people find crisp and clean to "feel" like more power. Easy ways to keep the grin factor up.

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