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Thread: Trx90

  1. #1
    Join Date
    Oct 2003
    Location
    southwest Kansas
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    496

    Trx90

    I brought the trx90 home tonight and hid it in the garage. Before I hid it I took it up and down the street a couple times. I am very surprised how quick it is.

    While looking it over I did notice how restricted the intake is. Only a tiny little hole in the airbox lid. Also the baffle can't be removed, entire end cap is welded in. I did disconnect the pink wire from the cdi. I sure hope its as fast as his LT80 was.
    1989 trx250r-few mods
    1998 500 scrambler-wifes
    2007 Kymco 250 Mongoose-mydaughter
    2007 250ex-my boys
    1986 ATC250r Project

  2. #2
    Join Date
    May 2002
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    a few choice aftermarket parts and she will rip
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  3. #3
    Join Date
    May 2002
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    St joseph Mo.
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    It`s a huge upgrade from the little lt

  4. #4
    Join Date
    Dec 2005
    Location
    Central Illinois
    Posts
    169
    Take the airbox lid off, Big Gun Mini EVO Pipe, Uni intake filter, and she'll smoke the lt. :macho

  5. #5
    Join Date
    Oct 2003
    Location
    southwest Kansas
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    496
    Originally posted by Pappy
    a few choice aftermarket parts and she will rip
    Can you tell me some of the cheaper mods I can do for big increases? What pipe, modify this etc.


    It`s a huge upgrade from the little lt
    Thats good info to here, I have been worried about this ever since I decided thats what I wanted.

    I bought one of those front end widening kits on ebay but it won't fit the 2006 model. I am in the process of trying to get some other brackets that will allow it to fit.
    1989 trx250r-few mods
    1998 500 scrambler-wifes
    2007 Kymco 250 Mongoose-mydaughter
    2007 250ex-my boys
    1986 ATC250r Project

  6. #6
    Join Date
    Oct 2003
    Location
    southwest Kansas
    Posts
    496
    Originally posted by 3-D Racing Dad
    Take the airbox lid off, Big Gun Mini EVO Pipe, Uni intake filter, and she'll smoke the lt.
    Thats the perfect info. Them parts will have to wait a bit Christmas has taken its toll this year. empty pockets

    I can't get over how restricted they have got that motor. Its a wonder it will even run. HAHA


    I got a set of skat trak gliders ordered for it. Hopefully we will get one of them nice days on a weekend and we can make a day trip to the dunes. Then we wil know how it will perform for sure.
    1989 trx250r-few mods
    1998 500 scrambler-wifes
    2007 Kymco 250 Mongoose-mydaughter
    2007 250ex-my boys
    1986 ATC250r Project

  7. #7
    Join Date
    Dec 2005
    Location
    Central Illinois
    Posts
    169
    Those are about the bare minimum that you can go but it will help a bunch. You can also play with the gearing and different tires will help as well.

    From what I can tell, Pappy knows a thing or two about the little thumpers so he is a good one to talk too.

    Eric at ICRacing is building my son's at this time we are doing a little more than the bare minimum though .
    My Toy's
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    2007 Suzuki LTZ90

    Kyle's Toys
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    2004 Honda TRX 90

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  8. #8
    Join Date
    May 2004
    Location
    Dirt Rd.WV
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    541
    I picked Michaels up this week and took it over to my buddy's shop. We took it for a little ride around his tt track. I believe this will make a VERY nice mini to trick out. I can't wait to pump the cc's up and really trick this mini out. What color did you get, he chose the black 1.

    My wife said she hates to see how much you'll spend on this 1. But she's the 1 who bought it. She knows I can't own a stock quad.

    There is so much you can do to produce some major power.
    Michael Mussi Jr #838
    07 Honda 300ex Tricked out
    2 Time GNCC National Champion
    Special Thanks to Hetrick Racing,Demotto Honda & Yamaha, Elza's cycle and atv's, Muffler,Brakes and More, K&K Customs. Teter Automotive,Engine Builder Don Sturdivant.
    The money spent on Michael's quads seem's like a million bucks.
    The smile on his face after winning the race WORTH IT !!!!

  9. #9
    Join Date
    May 2002
    Location
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    Big Gun Race Series Full Exhaust

    Rev Box

    Cut the pink wire coming out of the cdi

    a stock bore size 11-1 piston and a powroll cam

    this is the set up we ran with some porting and a 20mm carb.
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  10. #10
    Join Date
    Oct 2003
    Location
    southwest Kansas
    Posts
    496
    We choose the red one.

    I already disconnected the pink wire. I think I'll wait and see how it runs before we start modding it to much.. I'm sure it will be modded soon enough.
    1989 trx250r-few mods
    1998 500 scrambler-wifes
    2007 Kymco 250 Mongoose-mydaughter
    2007 250ex-my boys
    1986 ATC250r Project

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