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New to forum and Rebuilding my 04

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I bought my first dirt bike since i was 12 (21 in 2 weeks) and it was an 04 250f that hadnt been rode maybe 5 times in the last 3 years. Still had all original stuff on it including the tires. I Had been riding it quite a bit and had some good jumps built at my biddies place. I was riding it about 2 weeks ago going down the county road and it died got it started after kicking it a bunch and kept dieing befor it finally locked up. It had oil coolant and everything it should. I took it in and they said the crank was bad and they tore it down more and it needed a new top and bottom end. I went with a cylinder works big bore kit and a stroker crank to make it 285cc. How much of a difference is the extra 35 cc going to make when its all done and what do i need to do for break in period and all that stuff. Thanks for the help

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Congrats on the new baby and sorry it was a bitch so new in life. Anyways your jetting will have to be changed but I'd imagine break in period would be the same as a regular break in. Steady RPMs for about 15min without lugging it then change oil and filter (IMO). Don't know how much more power you'll get but interested to know

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Yea I ordered everything already from a eBay store in California he made an entire kit for me it'll be here Friday I'm hoping since its only a jump in 19cc it wont be to bad

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Well I can't offer much more advise since I don't have a stroker or big bore but I am very curious about an honest opinion on how the combo turns out. Please update us after you're done and any info you come up with

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