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  1. #1

    Join Date
    Jun 2005
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    Marlboro, NY
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    ZDZ 50 RV 3/4 throttle and beond dies out?


    I just installed a 50 rv into a Hanger 9 Extra 260, It starts and runs great. When I throttle upto 3/4 or higher the engine wants bog and quit. If I half choke it will run good. All lines seem to flow well. I know the motor runs great I had it in another plane a week ago and it ran great with a 20/10 prop. The only difference is I'm using 22/10/ Whats the deal?

  2. #2

    RE: ZDZ 50 RV 3/4 throttle and beond dies out?

    A 22x8 is a better prop for the 50RV. You might be experiencing too much prop load and the carb cannot keep up. You must ALWAYS richen the mixture when going to a larger prop.
    Thanks,
    Mike Dooley
    RC Showcase

  3. #3

    Join Date
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    RE: ZDZ 50 RV 3/4 throttle and beond dies out?

    I found you exactly right. I richened the high side needle 1/4 to 1/2 turn and the motor came back. 22/12 seems to be too much bite, getting only 4900rpm. I picked up a 22/10 and will be trying it today. I'm going to place an order for a 22/8 and see what that yields. Thanks Big Mike.


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