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Thread: Raptor 50 Speed Upgrades

  1. #1
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    Raptor 50 Speed Upgrades

    Found these speed mods on the Internet for a Raptor 50. I will be trying them soon and update this thread for accuracy and with pictures.

    • Rejet and modify carb: rejet carb, main jet 80, pilot jet 12.5. Replace the slide with part# 2HX-14112-35-00 also need to replace main nozzle with part# 2HX-14141-78-00.
    • Remove the two screws on throttle housing, you will see a gold bracket you need to replace with part# 36B-2625H-00. NOW YOU HAVE FULL THROTTLE!
    • Remove all of the air cleaner assembly and install K&N air filter with outerwear.
    • Replace CDI box with any aftermarket unit that raises the electronic rev limiter.
    • Replace stock size rims/tires with larger rims/tires for more top end and smaller tires/rims for more low end.


    With a combo of these mods its been said you can make a Raptor 50 hit 30mph and beat a stock Raptor 80 or 90.

    These are all basically Raptor 80 parts being put on the 50.

    Good people to talk to about these mods are Raptor 80 Racing - Performance Parts for Yamaha Raptor 80's

    Coop we miss you brother..

  2. #2
    Bolt-on Beginner BEANER242's Avatar
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    Been there done that. It does help but is it still a pooch.

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    What did you expect from a 50? I was actually pretty suprised it tools me (200 pounds) and the kid (30 pounds) around the yard pretty good stock..

    Coop we miss you brother..

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    I am smarter than you.... phucker's Avatar
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    haha tim your kid cant even drive it yet and you are already making it more dangerous for him lol. let him drive it stock first and get good then upgrade it. DOES YOUR WIFE KNOW YOU ARE DOING THIS????
    RIP COOP, you are and always will be missed bud

    www.midiesel.com

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    He isn't even 2 and he is already taking the controls while I am on the back. Its awesome he can barley span the bars but he knows how to work the throttle. I am going to do the carb mod which will make it jump up to 2300 RPM faster before the limiter kicks in so it wont make it to much more dangerous. Then when he is ready I will plug in the new CDI..

    Coop we miss you brother..

  7. #6
    Modding the Motor jogaca's Avatar
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    0 mod's

    Quote Originally Posted by Wreckless View Post
    Found these speed mods on the Internet for a Raptor 50. I will be trying them soon and update this thread for accuracy and with pictures.

    • Rejet and modify carb: rejet carb, main jet 80, pilot jet 12.5. Replace the slide with part# 2HX-14112-35-00 also need to replace main nozzle with part# 2HX-14141-78-00.
    • Remove the two screws on throttle housing, you will see a gold bracket you need to replace with part# 36B-2625H-00. NOW YOU HAVE FULL THROTTLE!
    • Remove all of the air cleaner assembly and install K&N air filter with outerwear.
    • Replace CDI box with any aftermarket unit that raises the electronic rev limiter.
    • Replace stock size rims/tires with larger rims/tires for more top end and smaller tires/rims for more low end.


    With a combo of these mods its been said you can make a Raptor 50 hit 30mph and beat a stock Raptor 80 or 90.

    These are all basically Raptor 80 parts being put on the 50.

    Good people to talk to about these mods are Raptor 80 Racing - Performance Parts for Yamaha Raptor 80's
    Did you find and or try all these parts with the part #'s? If so did you see a noticable difference? Or anyone else out there get good results doing some mods? I don't care so much about speed, just want my 5 year old to be able to climb a little bit of a incline at the dunes.
    Thx

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    The 50 will really open up after you do these things.. Not sure how much of a dune it will climb but you will see its full potential..

    Coop we miss you brother..

  9. #8
    Master Modder MelonFarmer's Avatar
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    Breaking the kids in right!.. will be an FSA jockey by the age of 4

  10. #9
    Stock, ready to MOD GRock's Avatar
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    Hi all, I have a 2007 raptor 50 for my 5 Y/O daughter. (6 Y/O son on 90). the 50 tops out at 12 MPH. fun in the yard and parking lots but fu**ing painful following her on the trails. I purchased the CDI upgrade, and plan on removing the slide and cutting 5/16" off the top as well as modifying the throttle assembly spring. Yes I know both parts ost all of $30 but i am a glutton for punishment. Upon completion I will be posting results. I am open for other tips, but am not trying to do anything but increase the top speed by about 10 MPH and I know about the jets and some other tweaks, but I feel I can achieve my goal without the additional items. OH, I plan on possibly replacing the exhaust or getting the exhaust tip for $30 if i cheapo out. IU will keep all posted

    UPDATE
    Just installed the CDI and off the bat a difference. With myself on it (180 lb adult) got it from 12 MPH to about 16 MPH. a little shaky though, but I feel some carb adjustment can rectafy. now to take the carb apart and cut the slide and cut the throttle limiter in the throttle housing.
    Last edited by GRock; 09-22-2015 at 04:48 PM. Reason: update

  11. #10
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    Its not made to rev that high. The rev box makes it shake pretty good. I never cut my slide. Filter, rev box and jet and left it alone. With the limited suspension I would not want to be in the trails any faster then that with the 50. Its time to upgrade quads to go any faster.

    Coop we miss you brother..

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