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  1. #1

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    How does my spark plug look?

    Ok, I need the Baja engine experts help on this. This is my new 5T's spark pug that has had about 2 tanks of fuel using the HPI break in oil at 25:1 ratio with 93 octane non ethanol added gasoline. Today I ran the engine on around a dozen high speed runs at stock needle settings with all bearings and gearing stock outa the box as well.

    The pictures were taken after the engine was cooled down completely. What and if do I need to change on my needles? Thanks much, I wanna make sure i'm tuned right so I maximize my engine life




  2. #2

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    RE: How does my spark plug look?

    looks way to lean to me
    owner www.rcinnovations.co.nz

  3. #3
    clubin's Avatar
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    RE: How does my spark plug look?

    Yep, lean. Richen the H up just a tad.
    Nutech Mega Monster - Aluminum FG MB - HPI 5T - HPI 5b - I own two Redcat\'\'\'\'s too, but don\'\'\'\'t ask.

  4. #4

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    RE: How does my spark plug look?

    Its running hot...aka lean.

  5. #5

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    RE: How does my spark plug look?

    it looks lean, richen up the high speed needle alittle bit
    just say no to \"shelf queens\"
    aaf# 111285-25
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  6. #6

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    RE: How does my spark plug look?

    looks lean , richen it up.

    if you wana tune right , run your idle screw 1/2 turn from closed and use yoru lsn to tune the idle and the hsn to do the rest.

  7. #7
    DarkFire989's Avatar
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    RE: How does my spark plug look?

    Also you want to check the color right after you do a high speed run. Dont let it cool down.
    Clod Buster | Sludge Hammer | Blue Streak | Revo | Baja | CR-01 | FG MT

  8. #8

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    RE: How does my spark plug look?

    if you have the kill switch installed so you can kill it with the remote get it to temp, then with it at wot kill the motor and pull the plug.. if not run it wot and shut it off quickly dont let it idel to long

  9. #9

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    RE: How does my spark plug look?

    the color needs to be light brown , thats when its running 100%, anything black and oily is too rich


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