honda crf250x with fmf exhaust system , hotcam stage2 and wiseco forged hi comp (13.5:1) piston

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Uploaded by on Feb 6, 2010

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Autos & Vehicles

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Uploader Comments (taonuinz)

  • Do you have to run race gas with that hi-comp piston?

  • @epert1010 no i just run it on pump gas 96 or 98

  • @taonuinz Is that the factory 4 exhaust?

  • @taonuinz hey, i have a 250x does the stage to cam make any difference? in bottom end or top end?

  • @CRFRider45 the cam gave me a lot more top end power but i also lost most of the bottom end . thats when i put the new headers on that gave me back my bottom end power i had lost.

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  • I just wanted to know, at 0:29 is it bad for your engine to max out the rpm's lime that? Please reply! :)

  • @yz125man101 the x is the trail version, the r is the race version. the x is geared different, has a kickstand, head/tail light and a kick stand

  • i have a kx250f procurcuit or fmf?

  • you need heavier valve springs

  • how much more power has that given it? 

  • did cam help would it be worth it for kx 250f

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