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M 4 Install, Pics and Video

This is a discussion on M 4 Install, Pics and Video within the FZ-09 Builds forums, part of the Yamaha FZ-09 Forums category; You Tube Video:...

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Thread: M 4 Install, Pics and Video

  1. #1
    Senior Member C. Dolan's Avatar
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    Lightbulb M 4 Install, Pics and Video

    You Tube Video:

    Congress: The only whore house in the country that loses money

    "The difference between death and taxes is
    death doesn't get worse every time Congress meets."

    -Will Rogers

  2. #2
    Senior Member C. Dolan's Avatar
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    Some pictures to show how much it sticks out, which isn't much.

    Exhaust is 9.25 Lbs, which is 8.75 lighter than stock ( 18 Lbs. )





    Congress: The only whore house in the country that loses money

    "The difference between death and taxes is
    death doesn't get worse every time Congress meets."

    -Will Rogers

  3. #3
    Senior Member C. Dolan's Avatar
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    Prep:

    A fair amount grinding of the weld.

    Congress: The only whore house in the country that loses money

    "The difference between death and taxes is
    death doesn't get worse every time Congress meets."

    -Will Rogers

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  5. #4
    Senior Member C. Dolan's Avatar
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    Essential tools for installation:

    Poogamer69, v2Bob, YHK and 1 others like this.
    Congress: The only whore house in the country that loses money

    "The difference between death and taxes is
    death doesn't get worse every time Congress meets."

    -Will Rogers

  6. #5
    Senior Member Poogamer69's Avatar
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    I like the way that it sits. Very nice.

    Is that with or without the baffle, and have you any further tuning/tuner or is it the stock fuel mapping?

    Install would have not gone smoothly without that ***** by the way, good call.
    Last edited by Poogamer69; 03-28-2014 at 12:08 AM.

  7. #6
    Senior Member C. Dolan's Avatar
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    Quote Originally Posted by Poogamer69 View Post
    I like the way that it sits. Very nice.

    Is that with or without the baffle, and have you any further tuning/tuner or is it the stock fuel mapping?

    Install would have not gone smoothly without that ***** by the way, good call.
    Just barely installed, tonight, so stock map and baffle in place.

    I will try it with the smog hoses blocked or block off plates.

    Power Commander may come later.
    Poogamer69 likes this.
    Congress: The only whore house in the country that loses money

    "The difference between death and taxes is
    death doesn't get worse every time Congress meets."

    -Will Rogers

  8. #7
    Senior Member Poogamer69's Avatar
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    Quote Originally Posted by C. Dolan View Post
    Just barely installed, tonight, so stock map and baffle in place.

    I will try it with the smog hoses blocked or block off plates.

    Power Commander may come later.
    Sounds awesome, even with baffle in I reckon.

    Only asked about mapping as some say you do need a remap/power commander, some say you dont including M4 themselves......but they are just trying to make a sale so that is a given. Just worried about lean running conditions is all really if i do decide to go this route, however I cant imagine it would be all that much of a change in AFR........I could be wrong though.

  9. #8
    tox
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    Junior Member tox's Avatar
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    I wish there was some closure on this subject. I grew up in the racing community and raced myself. The thought for me is that if you change anything with the way a bike breathes then an adjustment of fuel to air ratio must be sorted. I spoke to local bike shop that had put a 2bros exhaust on someone's bike and told me they made no changes. Well, to me. If you change the exhaust to have more air coming through, I would of thought you would need more petrol so it's not leaning out.
    Yoyodyne and Sasha like this.

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    Senior Member Fizzerpilot's Avatar
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    Guys have done dynos, and without mapping, it is hella lean. Yes, I said hella.

  11. #10
    Senior Member Yoyodyne's Avatar
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    Quote Originally Posted by tox View Post
    I wish there was some closure on this subject. I grew up in the racing community and raced myself. The thought for me is that if you change anything with the way a bike breathes then an adjustment of fuel to air ratio must be sorted. I spoke to local bike shop that had put a 2bros exhaust on someone's bike and told me they made no changes. Well, to me. If you change the exhaust to have more air coming through, I would of thought you would need more petrol so it's not leaning out.
    Yep, that has always been my understanding as well.

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