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  1. #1

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    ASP Break-in (run-in) procedure

    Hi there, I recently bought an ASP1.08 motor. Does anyone out there have any idea how to run the engine in before I fly the plane? Thanks all.

  2. #2
    jrcaster's Avatar
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    RE: ASP Break-in (run-in) procedure

    If you can't find the ASP Manuals, try looking for Magnum Manuals. They are suppose to be the same engines, just renamed for different market.
    Kit building is the fine art of persuasion. Please line up.

  3. #3

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    RE: ASP Break-in (run-in) procedure

    If it ain\'\'\'\'t yours; don\'\'\'\'t touch it!

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  4. #4
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    RE: ASP Break-in (run-in) procedure

    ASP, SC and Magnum are usually almost identical but not always. My son has the SC 1.08 which is an ABC and a quick google search shows the ASP is also ABC and not ringed. The first thing is that these engines don't like much nitro and are quite happy with zero nitro. The carbies are rather large so they need decent muffler pressure (we've fitted a carb from an Enya 60/80X which was a drop in fit).

    Run it in with a prop that gives a fairly light load, like a 13x6 or 14x6, use a fuel with some castor in it (or all castor) and any medium to hot plug. Open the main needle about 2 1/2 to 3 turns because you want it running fairly rich at first. The ideal setting is where it's just breaking from a 4 stroke into a 2 stroke at full throttle but if it's in a 4 stroke then that's fine for the first tank. Let the revs slowly build up over the next 30-40 minutes and then it should be fine to fly but still keep it a bit on the rich side for a while. The slowish rich running allows the rod to run in while the faster and hotter running settles in the piston/liner fit.

  5. #5

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    RE: ASP Break-in (run-in) procedure

    Thanks for all the help. Some good info out there.

  6. #6
    Moderator w8ye's Avatar
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    RE: ASP Break-in (run-in) procedure

    I had a ASP 108 and have been around several Magnum 108 engines. They are trouble free with no bad habbits

    You will enjoy the engine
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
    Recipient, Mangledhand award August 2008
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    Original AMA #31261


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