The Most Effective Performance Upgrade
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Thread: The Most Effective Performance Upgrade

  1. #1
    Senior Member Skin Walker's Avatar
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    The Most Effective Performance Upgrade

    So, on my 1991/93 ( can't seem to remember which year it is, they are all so darn similar) I have the Wiseco 70mm piston which helps with some performance.


    Then I ran into this super awesome piece of information which I have ordered, installed & field tested with FANTASTIC success. Next to removing my piston rings ( to remove performance decreasing friction- duh! ), this is the best thing going...


    I have these (2) little gems in my machine and, believe me - I have WAY more speed, and the best thing is, I am getting an additional 30-40 MPG.



    The trick is that, the holes REDUCE the weight = increased performance AND MPG! WOW
    !



    IMG_0146.JPG


    Also, you can see the data behind this claim as illustrated by this graph...

    US07134834-20061114-D00001.png
    - SW


    2006 TW
    1998 TW
    1996 TW
    1993 TW
    1985 BW200
    1987 B200E
    1979 Honda Z50
    ..and 1 Chihuahua

  2. #2
    Senior Member Fred's Avatar
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    You should install those on the exhaust outlet of the chihuahua.
    Active Thumpers:
    2003 TW200 "Betty Boop"
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  3. #3
    Senior Member Skin Walker's Avatar
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    ... I had thought about that..
    - SW


    2006 TW
    1998 TW
    1996 TW
    1993 TW
    1985 BW200
    1987 B200E
    1979 Honda Z50
    ..and 1 Chihuahua

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  5. #4
    Senior Member renny10n's Avatar
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    The trick is that, the holes REDUCE the weight = increased performance AND MPG! WOW
    !


    ha! ha!, might get even better performance just leaving the valves out
    Last edited by renny10n; 04-11-2017 at 12:11 PM.

  6. #5
    Senior Member GCFishguy's Avatar
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    I call BS.

    All that extra flow won't give you anything if it can't get out the other end. More holes, MORE flow, MORE less weight!

    muffler_holes.jpg

    And thanks for the info on those eBay handguards. I tossed my little flappy plastic things and put a set of those bad-boys on. Woohoo!

  7. #6
    Senior Member scotti158's Avatar
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    April Fools a few days late perhaps?
    Last edited by scotti158; 04-11-2017 at 03:50 PM.
    littletommy, ejfranz, Ken and 1 others like this.
    2013 Yamaha TW200

    1996 Yamaha TW200

    1995 Kawasaki KLR650

    2002 Yamaha RoadStar 1600 with sidecar

  8. #7
    Senior Member scotti158's Avatar
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    Check this out. LINK
    admiral, Fred, Ken and 2 others like this.
    2013 Yamaha TW200

    1996 Yamaha TW200

    1995 Kawasaki KLR650

    2002 Yamaha RoadStar 1600 with sidecar

  9. #8
    Senior Member Michael Bryce Winnick's Avatar
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    I cross drilled my rotor to shave some weight and cross drilled the brake lines to minimize the pressure.
    Fred, Tweaker, Ken and 2 others like this.

  10. #9
    Senior Member phelonius's Avatar
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    I thought maybe it was a religious thing that made them holey.
    Phelonius

  11. #10
    Senior Member cccan's Avatar
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    my best performance up grade was to shed a few pounds off my fat lazy ass....

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