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Thread: Mm 700 Power Inc jetting for 8,000-10,000ft.

  1. #1


    Exclamation Mm 700 Power Inc jetting for 8,000-10,000ft.

    I have a 2000 MTN Max, ported and polished engine with power inc end dump pipes and air box mod. I know these pipes run at 8500 rpms. I need an idea for jetting at 8-10k feet. I tried 138.3 PTO and 140's but won't pull the rpms, I tried nocking weight out of the primary but didn't change the rpms. Need some advice.

  2. #2
    Super Moderator Maim's Avatar
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    what do the plugs look like at rpm?
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  3. #3


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    Quote Originally Posted by Maim View Post
    what do the plugs look like at rpm?
    The plugs are dark brown.

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    Senior Member Open Mod A couple of bucks's Avatar
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    Dannyboy

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    Super Moderator Maim's Avatar
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    a touch ritch but not too bad. reeds are in good shape? air box all stock?
    sleds
    410cc reliable power (enticerII) rx tunnel braces
    500cc mutant margarita mixer (09 phazer rtx/x)
    1000cc of yamaha excellence (apex xtx)

    motorcycle's
    00 xt350 mod
    08 wr250x

    atv
    2005 big bear pro

  6. #6


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    Quote Originally Posted by Maim View Post
    a touch ritch but not too bad. reeds are in good shape? air box all stock?
    I have the air box mod, holes in the mid plate. And the reeds are good.

  7. #7
    Super Moderator Maim's Avatar
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    primary spring might be too stiff for your clutching. i am by no means a clutching expert but it might be asking for a softer spring. are you using power inc clutching reccomendadions as a base without the porting?
    sleds
    410cc reliable power (enticerII) rx tunnel braces
    500cc mutant margarita mixer (09 phazer rtx/x)
    1000cc of yamaha excellence (apex xtx)

    motorcycle's
    00 xt350 mod
    08 wr250x

    atv
    2005 big bear pro

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