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    What is your Apex flat-cruise MPH @ 7500 & 8000 RPM?

    Everyone wants to talk about WOT top end speed, but I couldn't care less. What I want to know is what does your sled do (MPH) at 7000 RPM, 7500 RPM, 8000 RPM and 8500 RPM on long, flat, smooth surfaces like lake runs? Thanks! Gerg
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    What is your RX-1 flat-cruise MPH @ 7500 & 8000 RPM?

    Everyone wants to talk about WOT top end speed, but I couldn't care less. What I want to know is what does your sled do at 7000 RPM, 7500 RPM, 8000 RPM and 8500 RPM on long, flat, smooth surfaces like lake runs? Thanks! Gerg
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    RX1 Turbo Jetting

    I've been flying an RX1 on my gyrocopter since 2011, been the unchallenged climb champ for two-place rotorcraft ever since. Now Rotax is marketing a turbo aircraft engine that will finally be a serious challenger, it's now time for me to boost this beast to stay on top. Typical sled turbo...
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    Are Apex Spark Coils Coils Interchangeable with Phazer???

    I need some APEX spark plug coils, so I checked on Ebay. Those sellers are all listing their coils as compatible for Apex and Phazer, but the shop manuals indicate they very different coils (although the mechanical fit is the same ), Apex coil spec is 5k - 6.8k ohms, while Phazer coils are 10k...
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    Any RX1 Carburetor Vacuum Spring Mod Sets Around?

    Any RX1 Carburetor Vacuum Chamber Spring Modification Sets Around?
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    Apex Limp Mode Causes

    What are the causes for an Apex (2011) to go into limp mode - with the TORS bypassed?
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    Turning Motor backwards by hand - will it damage it?

    Is there any danger in turning an Apex engine backwards by hand slowly? Thanks. The 2011 Apex engine had been sitting out of the sled for over a year. Before trying to start it for the first time I added a tsp of oil into each of the intake throttle bodies, and into the spark plug holes...
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    HELP Coil broke off in the well!

    Pulling off some very stuck coils and one broke off inside the well, right at the gasket seam between the valve cover and the head. Anyone have any tricks or tips as to how to extract this thing? Thanks! Greg
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    Help - Need Sidewinder Wiring Diagram

    I signed up for the VIP membership and TY4 gents kindly provided a link to their PDF Sidewinder shop manual, but the wiring diagram is useless, so low-def and blurry you can't make out anything on it at all. Does anyone have a good scan or photo of the wiring diagram that will print out legibly...


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