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Thread: The 490Z the saga continues... Round 3!

  1. #16
    Join Date
    Jan 2006
    Location
    conesus lake NY
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    refined...

    when I first built it .. I bought the motor with no brackets.. well I simply rotated the front brackets and drilled the holes out.. well after 2 seasons of racing every weekend on akly.. the mounts show sign of cracks ...so to tighten the ol girl up again.. I bought 86 490 front brackets.. bolt on!
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  2. #17
    Join Date
    Jan 2006
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    The Heart of the beast has arrived

    88mm 1 mm over ,Wiseco.... a true 499cc motor.. 1 cc short of 500..........

    thanks for the chubby tonight wiseco!!!!!!!!!!!!!
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  3. #18
    Join Date
    Jan 2003
    Location
    Southern MN
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    1,867
    Man Raffa, judging by your avatar, you REALLY like corn, dont you? I have heard, but wasnt sure until now. Nice build, and cant wait to hear how she does!
    THE 80's RAGE! Currently owns:
    81, 85 Yamaha Tri Moto 125
    83 Yamaha Tri Moto 200 x2
    82,83 Yamaha Tri Moto 175 project
    85 Yamaha Tri Z 250
    84 Kawasaki Tecate 250
    84 Honda ATC 70
    85 Honda ATC 350X
    84 Honda ATC 250R
    (2) 84 Honda ATC 200x
    82, 83 Honda ATC 185s
    81 ATC 200
    Lots of other parts and bikes

  4. #19
    Join Date
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    came back from FLA with some new White Shrouds...
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  5. #20
    Join Date
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    you guys are silly if you dont use GKING POLISHING!...
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  6. #21
    KASEY's Avatar
    KASEY is offline weee weeee weeeeeeeeeee ! ! ! The day begins with 3WW
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    i found this at a garage sale!!! what do you think????


  7. #22
    0GravityMX is offline BANNED, For scamming and circumventing previous bans. First time rider
    Join Date
    Aug 2010
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    Cape Coral,FL
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    154
    looks a bit ghetto lol

  8. #23
    KASEY's Avatar
    KASEY is offline weee weeee weeeeeeeeeee ! ! ! The day begins with 3WW
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    we will see what it looks like when i get done with it,,,,,,,,,,,,,,,,,,,,,,,,,,,

  9. #24
    Join Date
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    Attached Thumbnails Attached Thumbnails 2010_09074900018.JPG  

  10. #25
    MrPretty's Avatar
    MrPretty is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Aug 2010
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    The Woodlands, Texas
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    291
    I love the orange color on that swingarm.

  11. #26
    Join Date
    May 2008
    Location
    Juneau
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    602
    i know a guy who has a 490 200x, they cut the bottom half of the frame out of the 490 and cut the bottom half outta the 200x and put them together the thign is scary and has scarred many people
    3 wheelaholic

    ATC200/CR480 custom

    1984 atc250r near mint

    wr450f trike on the way

    Trizinger for my sons

  12. #27
    Join Date
    Jun 2009
    Location
    san dank
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    First off i love me a YZ490 ! Yours is very nice ! Theres some banshees and 500 waterpumpers at glamis say around thanksgiving that would love to run it ! They even bring their own tracter out to smooth the woops outta oldsmobile ! But you`re in a class by itself with that one ! Just have the rihno deliver alky or VP every 1/4 mile ! You`ll need it at gordys ! Had a buddy that welded a step behind the seat on a 490 so he could do the evel kenevel thing back in the day . He was never happy till he crashed and broke something on the bike or body!!!

  13. #28
    Join Date
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    Quote Originally Posted by glamy View Post
    First off i love me a YZ490 ! Yours is very nice ! Theres some banshees and 500 waterpumpers at glamis say around thanksgiving that would love to run it ! They even bring their own tracter out to smooth the woops outta oldsmobile ! But you`re in a class by itself with that one ! Just have the rihno deliver alky or VP every 1/4 mile ! You`ll need it at gordys ! Had a buddy that welded a step behind the seat on a 490 so he could do the evel kenevel thing back in the day . He was never happy till he crashed and broke something on the bike or body!!!
    Thanks,,,I got two tanks on it,bottom and top,,I can ride to Glamis..... BRAPPPPPP!! LOL!

  14. #29
    Join Date
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    update.. bead blasted cases, new front wheel bearings!
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  15. #30
    Join Date
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    the cylinder I sent out for re-pair ,,, is un repairable.. I have to eat the 1mm over piston I bought and buy a new piston and have the cylinder Re-sleeved,, wiesco sleeve and wiesco piston. Lancourt is installing the sleeve ,, to the tune of twice I was going to pay + the loss on the piston..

    the plus's stock bore again,nika-sil cylinder , and the sleeve will be repairable in the future.

    that dont mean there no work to do.. Pulled all the bearings in the lower end & seals . All will be OEM
    by far the best blind bearing puller for these motors!

    got my old school , cooler rack NOS.. and orderd a new cooler!

    250f front rez, and new lever..nice and short!

    gas tank bracket all bolted up,, thanks MTS!
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