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Thread: Tri Z Complete Frustration

  1. #1
    Join Date
    Dec 2004
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    Ontario, Canada
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    Tri Z Complete Frustration

    I have a 1986 tri z and since i got it it has had this problem where it starts up for about a minuite then dies. when i try to start it right after it fires then almost dies instantly, but if i wait i can usually get about another 30 seconds out of her.i have cleaned the carb numerous times, changed the coil, changed the cdi, cleaned the fuel tank put new fuel lines on it and it still does the same old shi*!!! PLZ HELP!!!!!!!! im to the point or tearing my hair out!!!!!!!!!!!

  2. #2
    a-camp's Avatar
    a-camp is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Check my two replies for the tecate

  3. #3
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    its not fuel i dont think

    i Have all clear fuel lines on the machine and it dosent seem to have a problem with fuel.

  4. #4
    Join Date
    Aug 2002
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    NY
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    check the compression maybe it is low and needs a rebuild

  5. #5
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    Dec 2004
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    got lots of compression

    Its got lots of compression my foot hurts from kicking the damn thing sooo much!

  6. #6
    a-camp's Avatar
    a-camp is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    What about the plug ?They could work til hot then die til it cools off. If its broke inside? Im fishing but this happend to me .And i tried everything but a second new plug for weeks.

  7. #7
    Join Date
    Dec 2004
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    Ontario, Canada
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    ive gone through like three or four plugs and its always the same thing i even took it to a shop and they said it was the cdi but yamaha didnt make them anymore so i bought one off e bay and it still does the same shi*!

  8. #8
    a-camp's Avatar
    a-camp is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    I'll keep thinkin for you. Let me know how you do.

  9. #9
    Join Date
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    Front royal, va
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    Take The Fuel Pump Apart And Check The Diaphrams For Tears!
    1985 With "86" Plastic's,Custom 12" Alluminum Extended Swing Arm,39MM PWK,"TRX" Filter,9 Paddle TALLER HALLER'S on 11" Wide Rim's,LOT'S of Stainless,LOT'S of Alluminum,LOT'S of PowderCoating,NOTHING Stock..

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  10. #10
    Join Date
    Sep 2002
    Location
    Rittman, Ohio
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    Take the gas line off the carb, and kick it over making sure that the fuel pump is working. It should squirt a bunch of gas each time you kick it.

  11. #11
    Join Date
    Dec 2004
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    Ontario, Canada
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    ive put new diaphrams in the pump.I have also put all clear fuel lines on so i can watch the fuel flow and there is no problem with that.

  12. #12
    Join Date
    Jul 2003
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    Ontario Canada
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    is your carb not set right??

    i dont know much bout Tri Z, so my opinions are long shot.... but i know its a ***** to tune 2 strokes

    Curtis
    Last edited by OldSchoolin86; 12-09-2004 at 05:52 AM.
    Currently Trikeless- but I have a LT250R

  13. #13
    Join Date
    Oct 2004
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    Anaheim
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    just cause u have top end compression doesnt mean trailprotrailpro bottom end is holding compression. also i had the same problem be4 my R blew up, mine had perfect compression when u kicked it but when it started it would loose it all. also check the reeds.
    adam
    86 ATC 500R the duner..
    85 ATC 500R...the not quite finished faster duner
    1985 ATC 250R Bone stock!!
    1985 ATC250R mx/duner
    1986 TRX370R MX/Duner
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  14. #14
    wolfspider's Avatar
    wolfspider is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    tri z

    this sounds like a choke problem to me, it starts ok then dies because it doesn`t need that much fuel anymore when warm.
    i would take the choke lever out and clean it , maybe blow some carb cleaner and compressed air through it.
    hope this works.
    steve.

    HONDA ATC250ESJ 1988
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  15. #15
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    Still sounds like gas delivery to me. While youre in the carb, go through the whole carb, pull all jets, blow out all orifices, and pay close attenting to the the float needle. If the needle sticks upward it will do exactly as you describe. Gas enters float bowl at a drip, and when its been sitting, and the float bowl is full, it works fine until runs long enough to empty the bowl.

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