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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!

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  1. S

    watched video on bbk . Ozark Garage. Keep it simple and follow Yuminashi instructions,forget about the stupid stuff. You don't need a fuel controller.

    It also makes it easier to put the piston and rings in the head. before re-assembly.You have to change the exhaust,with a smoother flow from the head.And you could not figure why it did not make a HUGE improvement. Come on! Mine has a couple thousand after I did it,and it would be my...
  2. S

    oil coolers

    I was talking with a friend of mine who worked with Runt Pittman when he was with Morgan McClure racing. It seems that this guy was so smart that he figured the only place you need oil is where it is used,which is not in the crankcase.The oil in the crankcase is opposing the power of the...
  3. S

    Chain Life expectancy.

    I have OEM chain. Clean ,lube every 200 miles or less, and have 4700 plus miles and I haven't adjusted in over 1500 miles. 13 tooth front sprocket with SHINKO 244 3/0 s in front and rear 143cc BBK What is average life span...
  4. S

    Adam 12

    Reed and Malloy are on are on two yellow Honda trail's following suspect, and got courier at airport. NO shit!
  5. S

    The SNAKE

    Mountain City to Shady Valley, HWY 421. 489 turns ( switchbacks ) Will try and find out how many on HWY 58 from Damascus east per mile.
  6. S

    Fuel management/BS

    I hit 61 mph on 13 tooth front sprocket with 3/0 244's and had to back off the throttle 143cc BBK ,150 injector,and had Marvel Mystery in fuel. 1486 miles on BBK. That is all I believe I need on this frame.
  7. S

    Some one wanted a picture of spark plug.

    I am going to pull plug/put in new one. Tech dinosaur/just figured I can take a picture and email it to myself,then send to ? Gonna video the RED ROCKET,as you will want to hear it as well as FEEL IT !
  8. S

    Cost of 2nd or 3rd bike.

    My insurance went up $ 8.00 dollars to add the DR 200,liability only, $ 80 dollars full coverage on my 2022 KTM 390 ADV. Was initially about $ 80 dollars full coverage on the Honda 125 Trail 2021. That's $ 168 dollars for 3 bikes,full coverage on 2 of them. Don't expect to do everything on one...
  9. S

    2023 gearing HT 125.

    The new sprocket in rear is 3 tooth smaller. Same as changing from 14 to 13 tooth in front. Don't admit a mistake till you sell existing inventory is the mantra for sales.
  10. S

    Fuel controller

    I was driving the other day and recalled a post from MC in SC. I believe he stated back in November post to add 20 mv to O2 sensor return to acheive the desired AFR. Out of the blue it dawned on me. Just swap out the O2 sensor. It is a thermistor. What is the supply voltage to...
  11. S

    Oil Spinner cleanout

    I did it. It was a nightmare the 1st time,about eight hours. 2nd time about an hour and 15 minutes. I had to do over since I put it back incorrectly. The reason for this post is I was watching this guy ride solo around Utah,and he had issues with shifting and performed same service. H e say's,if...
  12. S

    I thought about selling the RED ROCKET.

    I think I will sell my dog first! They waived the adoption fee the day I got him,but locked the door, and closed the blinds when I took him back three weeks later. There were many signs,but I am kinda SLO ? Are you sure? We have others you can...
  13. S

    Compression PSI

    What should compression PSI be on 143cc YUMINASHI big bore install be after break in?
  14. S

    Big bore kit

    Have about 330 miles on 143 cc big bore with cam. Bike absolutely sucks without it! I have about 3900 miles on it now,and actually enjoyed my ride today. I rode about 78 miles today in about 3 hours with lunch and snack break,and never had a car behind me.I can tell you about why ,and when to...
  15. S

    tires

    Vee Rubber VRM-022 dual sport. , front rear fitment. $97.90 but spend a $100.00 get free ship ?
  16. S

    Tires

    I got some SHINKO 241s 2.75/17., from Revzilla. I might send them back. They are great about returns , but have been a little slower getting orders out lately. I ordered some from Midwest Traction,same size with a better speed rating and 50/50 tread.I have to check what actually they are,but...
  17. S

    Slime in tires

    The guy on Fortnine on YOU TUBE say's the stuff to use is RIDE ON. I hope I spelled Fortnine correctly. I have known about it for about a year,but never ordered the stuff.
  18. S

    Co2 Tire inflaters

    Co2 is five times easier to compress than ordinary air. What happens when you hit a bump? Like not having an inflated tire? Maybe to seat the bead of the tire on the rim is the only reason I can say it should be used,then promptly removed.
  19. S

    2021 TRAIL 125 A service manual HONDA printed in USA

    I got two by mistake. Will ship unopened box with manual to forum member for less than cost. Very detailed,very satisfied with one I opened.It is in there,whatever you need to know about anything, 70 bucks.
  20. S

    Air flow

    I put 143 cc big bore kit along with exhaust upgrade,150 injector,less restrictive air filter. I hooked rubber part of snorkel before rack as I was going to wash/wax the RED ROCKET. I realized I forgot to unhook and lay to inside of back rack. After riding a few miles I realized it,and unhooked...
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