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Thread: Raptor 50 Speed Upgrades

  1. #11
    Stock, ready to MOD GRock's Avatar
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    Sep 2015
    New York
    Went to the trails this weekend and I must say there is a significant difference with the 50 and how it is running and handling. Just to make sure I am clear, I replaced the CDI, cut the slide, and cut the throttle limiter in the thumb throttle housing. On a separate note, if anyone else is reading, upon reassembling the carb, I guess I somehow weirdly adjusted the throttle cable as upon start it revved to where I thought the engine would explode. After some throttle cable adjustments and air.fuel screw adjustments, it ran extremely well (other than a minor stall at idle, which happened even before I touched it.) On the trails she got up to about 18 miles per hour as well as climbed the trail hills with no bog down, stall, or downright needing a push (not the case stock). The suspension/shocks are a total different story as well as the clearance is super close, but that is a different animal within itself and I am sure trails and types of terrain vary based on where you are. But all in all she loved it and did not complain about the vibration just because it was different. I plan on re-jetting the carb and possible swapping out the exhaust. The jet swap i want to do for two reasons. one I feel the stall out is due to a dirty idle jet and I am curious to how it will run with an 80 main and idle jet. worst case I can always clean and re-install old. But the moral of this post, is that I feel it worked and for the roughly $100 investment for the CDI and some of my time, was worth it. Here is a video link showing and hearing what it can do. 25 secs in will show you the power difference, at least I think so

    More to come, I promise.
    2007 Yamaha Raptor 50
    2010 Yamaha Raptor 90
    2004 Yamaha Wolverine 350
    2015 Suzuki king quad 400

  2. #12
    Stock, ready to MOD polorico's Avatar
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    Oct 2015
    Thanks for the post Wreckless. I just bought a 2004 50cc raptor for my son and it hasn't been running very well since I bought it. everything starts and fires fine when cold butt after half an hour it just stalls and dies. Battery will drain trying to start it but by pushing it it will fire back up again for a couple minutes. Anyways I should be able to fix it no problem, I am going to post pictures of before and after, the build etc... I will keep you guys posted.

    @GRock God damn right she's awesome! Can't wait to see my kid rip this machine too!

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