2000 WR 400 Mods need advice

I have a 2000 wr 400 on the YZ page the guys tell me i can do the 450 cam mod for the easy kicking and com. release removal, ok got it.

But now i want to bore my bike bigger or change to YZ timimg just to get a new kick out of it, as much power as possible but still want to run pump gas and keep the price to around $500 to $700, any help in this matter would be great, thanks. :)

William

Somebody must have done some kind of big bore mods, any help, thanks :)

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