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

  1. #46
    Join Date
    Jan 2006
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    conesus lake NY
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    Quote Originally Posted by Red Rider View Post
    It appears your cylinder has an iron sleeve, and it would just be overkill to nikasil it. That's probably why they didn't coat it. Did you want it nikasil coated?
    thats probley why they didnt.....good point.. going back they were going to nic the repaird sleeve ,,not this one

  2. #47
    Join Date
    Jan 2006
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    the swingarm Kasy made for me arrived yesterday morning,,,
    Worked into the night

    All the oem bearings and seals ,,oem Rod components,,got a few paychecks sittin on my dresser....
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  3. #48
    Join Date
    Oct 2010
    Location
    wisconsin
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    25
    So what is all done to the motor mod wise? I am assuming that it kicks to the rear as the fenders are cut but is it possible to convert the 490 motor to foreward kick in you experience? BTW that is a SWEET Z!

  4. #49
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    Quote Originally Posted by cumminstroker View Post
    So what is all done to the motor mod wise? I am assuming that it kicks to the rear as the fenders are cut but is it possible to convert the 490 motor to foreward kick in you experience? BTW that is a SWEET Z!
    never tryed it ..it was easeyer to drag cut the fenders,, not shure you would get the rotation to fire it,, the kickstart ends up below the peg when kicking it.. you would be mashin that kicker into the footbeg every kick..
    The crank has been knurled,Drag ported by dynoport,head has been re cut and the squish band removed,carbon fiber Reeds,..ect.. got a 44mm round slide I was thinkin about throwin on.. by leaning twards the 41.5mm PWK for that chrisp-ness!

  5. #50
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    worked on the lights today.. on the left a 490 stator,right a tri-z ,, between the two I got it figured out,, the yz stator plate is identical to the tri z ,,except the ground hole is not threded,, and the stator coil is bigger,,, so what we end up with is all yz stuff on a triz stator plate with a lighting coil!!! Red is hot... oh and my ITP rims.... sitting at 50"! studs installed in the cylinder...
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    DSCN2215.jpg  

  6. #51
    Join Date
    Feb 2005
    Location
    suffolk,va
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    109
    Looks like it is coming along nice! Can't wait to see some action pics.

  7. #52
    Join Date
    Jan 2003
    Location
    Southern MN
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    Hells yeah. Keep the great pics coming raffa!
    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

  8. #53
    bigbadktm's Avatar
    bigbadktm is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    May 2010
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    San Diego, CA
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    love the color of that swingarm
    1985 250R
    FMF pipe and silencer, K&N, 4" extended swingarm

  9. #54
    Join Date
    Jan 2008
    Location
    Cleveland Texas
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    305
    Are you going to do the squish mod to prevent predetination? Or just run race gas? 490's are awesome engines. Nice build!
    EDIT- I see you got it done, my bad. Should be a beast of a trike, good luck!
    -Fathers 1985 200X

  10. #55
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    Quote Originally Posted by kasey200x View Post
    Are you going to do the squish mod to prevent predetination? Or just run race gas? 490's are awesome engines. Nice build!
    EDIT- I see you got it done, my bad. Should be a beast of a trike, good luck!
    I run race gas ,, and I guess you never saw my head huh?
    Attached Thumbnails Attached Thumbnails 100_1077.JPG  

  11. #56
    jmax857's Avatar
    jmax857 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Jul 2010
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    bancroft canada
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    what did you use to paint that cylinder on page 2?

  12. #57
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    Quote Originally Posted by jmax857 View Post
    what did you use to paint that cylinder on page 2?
    PJ1 Epoxy gloss black,,,you gotta have the paint and the part above 70 degrees...

  13. #58
    Join Date
    Jan 2008
    Location
    Cleveland Texas
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    305
    oh man... extremely nice.. Wish i had that a few months back!
    -Fathers 1985 200X

  14. #59
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    Mar 2004
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    North Central Ohio!!
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    Your bike is looking really nice Bryan. So you threw a shorter swingarm on it then?

    I'd like to know the vibration difference between the Z motor and the 490?
    2007 YAMAHA YTZ450 went to a great home RIP Sam


  15. #60
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    Quote Originally Posted by Derrick Adams View Post
    Your bike is looking really nice Bryan. So you threw a shorter swingarm on it then?

    I'd like to know the vibration difference between the Z motor and the 490?
    Kasey built me a +6 for the dunes,, and the vibration,, is just a little stronger than a tri-z,, I really dont even notice it anymore,, and a new set of fat Oury grips helps,and I got a new seat comeing with new foam..So that should help also.I think the worse vib I ever expearanced was a cr500 in a quad frame..this is not even half as bad.

    I have a +12,+6 and a stock length swingarm for this bike.

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