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  1. #1

    Join Date
    Jan 2007
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    aberdeen, UNITED KINGDOM
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    zdz40 plug wet

    Hi I have a zdz 40rv from new and firstly it is brilliant been no bother to start and pulls my Gp yak 54 around with mega authority on a mejlick 21x8. Now my plug is wet and slightly oily, but the engine ticks over well holds full throttle without sagging. Ive noticed that the throttle up is slightly slower than previous so is this an indication that iam too rich on the low needle. As i say it a brilliant engine just after 4.5 gallons its gone a bit rich maybe! im not sure..

    Mark

  2. #2

    Join Date
    Jan 2009
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    rock creek, OH
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    RE: zdz40 plug wet

    Sorry i dont have the answer for you I am A proud new owner of a ZDZ 40 RV. I slapped it on an Rc Guys Super Decathlon. I have about a cup and a half of fuel ran through it and now I can not get it to draw any fuel these are the setps i have taken.

    Fuel lines are clear with no defects

    i disasembled the carb (walbro) did not find any debry

    there is a little tiny hole on the diaphram side of the carb if i slightly push down on that i can blow into the vent tube pushing fuel out of the carb

    why wont this draw fuel on its own

    Please help I cant wait to fly this beauty

    Thank you Greg

  3. #3

    Join Date
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    RE: zdz40 plug wet

    here r some pics
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  4. #4
    Zeeb's Avatar
    Join Date
    Nov 2004
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    Highland Utah UT
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    RE: zdz40 plug wet

    Greg,

    No one answers questions here for RCS since they were bought out by TBM.

    Suggest you contact TBM for assistance.
    Zeeb


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