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  1. #1

    Default big bore stroker yz250

    I am picking up a spare engine and want to go all out with this thing does anyone know of where I can find big bore kits or stroker kits for a YZ250

  2. #2
    Join Date
    Oct 2004
    Location
    New England
    Posts
    3,494

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    L.A. Sleeve.

  3. #3
    Join Date
    Oct 2004
    Location
    pennsylvania
    Posts
    14,217

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    i had a chance recently to look at the inside of a procircuit big bore engine for a 1997 kx125 ,back i nthe day if pc sponsored yo u no engine internals were allowed to done/viewed at alocal shop ,it had to be sent back to procircut for and modification or work ,anyways his kx blew up so frequently that he ultimatly decided to just scrap it and i looked it over it looked kinda hackyand unprofessional to me ,the transfer area is designed for that given bore ,make the bore larger and youll choke it out ,so its a rob peter to pay paul kinda thing IMO.
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  4. #4
    Join Date
    Jan 2012
    Location
    northwest indiana
    Posts
    0

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    who makes a stroker crank for a YZ250???? other than crankworks.... they can make any crank into a stroker.... but it's not cheap........ at all........

  5. #5

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    Thanks for the info Im getting the motor for a case of beer so I figured it would be fun to play with and see just how much I could get out of her I wouldnt want to do it with my original motor becuase I figured it would be very unreliable

  6. #6
    Join Date
    Jun 2005
    Location
    medford/rib lake WI
    Posts
    2,006

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    Quote Originally Posted by dchd1130
    Thanks for the info Im getting the motor for a case of beer so I figured it would be fun to play with and see just how much I could get out of her I wouldnt want to do it with my original motor becuase I figured it would be very unreliable
    haha its supprising what some people would do for a case of beer.......
    you have been taught, thou shall not kill, well hear this.....FUCK!!!!! THAT!!!!!! SHIT!!!!!! *jarhead*[/COLOR][/B]


    speed doesnt kill, its usally hitting something and suddenly becomming stationary that does it