Menu
What's new
By:
Filters
Honda Trail 125 Forum

Welcome to the Honda Trail 125 Forum! We are an enthusiast forum for the Trail 125, Hunter Cub, CT125 or whatever it's called in your country. Feel free to join up and help us build an information resources for this motorcycle. Register a free account today to become a member. Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

Recent content by Jitenshakun

  1. J

    HONDA CT125 Big Bore Kit

    Can anyone decipher if the JDM model comes with a bigger injector? https://www.honda.co.jp/CT125/spec/
  2. J

    HONDA CT125 Big Bore Kit

    Drawing on experience with modifying cars I cannot believe a bigger Injector isn't needed going from 125cc to 164cc. An Injector is cheap and at worst it'll run rich if the map isn't right. However, with tuning I assume it's simple to reduce the fuel flow?
  3. J

    HONDA CT125 Big Bore Kit

    Gotcha. I'm a 12.5-.13.5 AFR guy myself. 14.5 is for people tuning somebody else's engine.
  4. J

    HONDA CT125 Big Bore Kit

    Is the Efie necessary, or a "nice to have"? It seems like adding an AFR would make sense given reading plugs is an inexact approach to watching AFR.
  5. J

    HONDA CT125 Big Bore Kit

    I've read through this tread a few times (it's great!) and I'd appreciate the brain trust's take on my fat-guy-on-hills-at-altitude power plan. Am I missing something? Is there a better part choice? Yuminashi 143cc https://www.yuminashi.eu/143cc-56mm-light-bore-kit-msx-sf-grom-sf-monkey-125/...
  6. J

    HONDA CT125 Big Bore Kit

    Which brand did you go with?
  7. J

    HONDA CT125 Big Bore Kit

    Does anyone have experience with the full 143 kits from SP Takegawa? Reading this thread, the Yuminashi and letting the stock ECU is an option, but a full kit is tempting.
  8. J

    HONDA CT125 Big Bore Kit

    I'm first on a list for a 125 and at 220lbs I'm soaking up the information on BBKs. Is there a definitely 142cc kit now that webike has more options?
See more
Top