Spring Ride 2024 - let’s build a bike to ride!
HTML-код
- Опубликовано: 18 окт 2024
- Honda ST90 / Lifan 125cc. I built this bike to ride 104+ miles on 4/27/24. If you’d like to join the ride, send me an email to:
ct70help@gmail.com
Parts used in this video:
Trail Buddy wiring harness
mytrailbuddyst...
Key Switch
amzn.to/3VqPm8P
Nibbi 22mm carb
amzn.to/4a1P8cL
Turn signals
amzn.to/4ciczQC
125cc engine
amzn.to/43Dm60V
Mirrors
amzn.to/3wZySuc
Air cleaner
amzn.to/3PrWyO6
Foot pegs
amzn.to/3IFcGIv
Grab Handle
amzn.to/3IFheyi
CT70 style exhaust
amzn.to/48Yreh0
Yes. Honda designed the minies to be transported in a car trunk. Turn the bars 90 and be laid in the trunk. The mini trail behind you also has fold down bars, a gas cap vent that can be turned off, and a quick drain nob on the carb float bowl. It could be put in the trunk without leaking fuel.
It's not often I find a channel that has really fun projects and a good person at the same time. (like mustie1 and 2vintage) But today I found this one. Good job/ Per Lidberg Sweden
Thank you!
Nice build Mikey. Love your creativity on these little bikes. Looking forward to another one.
Thanks.
Growing up I had Suzuki 125cc quad-runner, my buddy had the Honda ST90 (the red one)...We rarely switched, I didn't like it, very uncomfortable. But looking back we had loads of fun on them.
Honda advertised the handlebar latch to locate the bar for easy transportation. I was never able to buy a descent st90. Want to sell or trade yours : )
I’ll keep this one, it’s the last one I have. I used to have a bunch of them and sold 8 to one guy in South Bend, a few years ago.
My favorite monkey bike was the ct70. I wish I had one today
They’re everywhere. 10 new ones pop up for sale on FB every day. Pull the trigger and get one. Or….a brand new Icebear Champion CT70 clone. For $1500, they’re hard to beat.
fab is a pain, but i think you nailed it! I'm glad you took the time to fabricate new engine mounts, and not cut into the frame.
Having worked 40 years in the steel/fab business, I kinda enjoy it. I’m over doing it every day, but every once in a while is fun.
Awesome build!!!! You did do more fab work on this one.
A lot of fab…..and most wouldn’t even realize it or see it, if it wasn’t pointed out. Haha
@@MiniBikeMikeAll that fab work translates into another word for it…”fabulous”!!
Wow I am always looking forward to your new video, you must live in the mini bike capital of the world, I am amazed of how many awesome project bikes you find, you are awesome
We are tripping over them, in my area. Our Honda dealer is the oldest dealer east of the Mississippi River. Same location since 1958. They must have sold a bunch of little bikes, back in the day, because they are everywhere.
Mike being Mike ! 👍🏾
Looks like you’re Ready to roll!
😁
I'm guessing, but it looks like you could raise the bars, rotate 90 degrees front to back, and the whole bike is way narrower. It could now sit flush against a wall. You could probably put 4 in the corvair side by side instead of 3 with the handlebars hitting. It seems like more of a gimmick than useful for most people.
Agreed. Doesn’t really look useful to me.
Man, it just looks so easy on your videos I feel like it would take me 5 different (10ish minite videos) to figure outnhald the things you did here 😅
Thanks. Someone ask me how I go about determining how I’m going to fix or fab something. I really don’t have a good answer. I visualize how I think it should look and just start building. Sometimes it works, sometimes it doesn’t. Haha
I would love to have the file for that motor mount or heck, even a template cut out of a cereal box would work for me lol
Great video and nice work buddy, we don’t see many of the st90 over here in the uk, I did see a mighty green one at a local show though.
Nice bike. I'd like to do the spring ride, but hope the weather is nicer, so I don't bail out like the Fall ride. If I make it, I'll bring the '67 S65 like I planned last year.
The avg low is 45° and the avg high is 67° for 4/27. Temps should be good, hopefully rain will stay away. But, we’ll ride in the rain, as long as there isn’t lightning. The temps for the fall ride were really nice.
Good job brother
It allows the handlebars 90 degrees for easier transport.
Seems like it would be a lot harder to move and handle with the bars turned. I think it’s one of those ideas that sounded better than it actually worked.
It was for storage up against a wall or mounted on a camper turn handle bars sideways to get bike closer without cramming bars into stuff.
Turned out nice.
Thanks.
Awesome build 👍🏻👍🏻
Thanks!
Great project Mike always like watching your videos if someone needed a set of those engine brace brackets that you made, would you make and sell a set ?
Thanks. I’m willing to plasma cut the left and right bracket. They would be $35 plus shipping. I am not interested in welding or fabricating the extra pieces needed in the left bracket. That sounds too much like a job…….and I don’t want or need a job.
Would you ever consider selling one of those mounts? Even if it were in pieces. I can weld them together. I just don’t have the material or CNC machine to do it nice. The mounting kits they sell that just mount to the foot pegs are very weak in my opinion. I’d rather something beefier like yours.
I had that green CT70 in the background. I'm currently looking to buy that bike if can find one.
K4 Mighty Green. I’ve got a Lifan 110cc in this one. Fun little scoot.
@@MiniBikeMike Yes the MIGHTY GREEN! I think it was a 74 or 75 model. I was lucky to have it as a kid.
@deepthinker1918 It’s called a K4. Last model produced before Honda assigned model years to these bikes.
great video , sweet bike
Thanks Jeff!
They made a yellow one also.
Yes, in the K1 model. For the K0’s, they were red or green.
I am supposed to go look at a 1974 ST90 this Friday. Is all original, looks pretty good. The guy says runs excellent and has a fresh top end rebuild. He wants $1800 for it and said he has the title. I dont know much about these bikes, are they a good bike for putting around the woods, and is that a decent price?
Just triple checking… you use the 22mm not the 24mm carb correct? The link highlights the 22ml but there is also a 24mm option.
I use the 22mm. It works fantastic for the 125cc’s, straight out of the box. The 24 will work, but you have to play with the jets and needle height.
Nice build. You had me fooled. I thought it was a 3-4 day project until you pointed out how long it took. How did you adapt the wiring on that key switch to the Trail Buddy harness?
Thanks. I think I show the key switch wiring in a build video on the yellow SL70, from last fall.
I have the switch linked in the description. It’s a standard CT70 K0 switch. I cut the round plug off of it and use 4 of the wires. The green ground wire and the black wire have continuity ONLY in the off position. These two wires get connected to the green wire and black/white wire in the TB harness. The red wire and brown wire of the switch ONLY have continuity in the 2nd on position. They get connected to the red wire and black wire of the TB harness.
@@MiniBikeMike Gotcha. I gathered that it was a CT70 switch. Was curious about how you worked out the round connector. Thanks for the explanation and I'll go back and check out your SL70 video.
In the SL70 video, I kept the round plug and made a jumper. I’m over that now. I just cut the plug off now and add a 4 pin connector. Haha
@@MiniBikeMike That's EXACTLY what I'm going to do.
Did you have to add a flasher relay to make the signals work? Did the harness you used have everything else?
When I want signals, I normally use Trail Buddy harness TB422. But, I didn’t have one and had plenty of the TB515.
I had to add all the wires needed for signals.
I had a flasher plug, from an old harness. I tied one terminal into the harness, for power. The other terminal got a gray wire that ran all the way to headlight. This wire plugs into the turn signal switch.
Then I added orange and blue wires that ran the length of the harness for front and rear signals.
Thanks for the ST90 content, there’s not that much of it out there. What was it you didn’t like about the 190 engine? I am looking at a re-power and was thinking about a 190 or 212 to keep up with my wife’s 2022 Monkey. Also would you consider sharing your template / file for the mounting bracket plates? Again thanks for the videos, I’ve learnt heaps watching your channel.
Ok don’t worry about the 190/212 part of the question, I found it in the other comments
@@joharbSounds like you want to do more than, “… keep up with (the) wife’s 2022 Monkey”. A 140cc will do that, consume less fuel than a 190/212, and not cost an “arm and a leg”, or need you to apply for a mortgage. 💸🤣
@@donsoule6411ok you got me
Mike, what would you charge for a pair of engine mount brackets. i have a Lifan 125, wanting to mount on a S90.
As I’ve told other, I’m willing to cut out the two flat plates for $35 plus shipping. I have no interest in welding up the tab needed for the left bracket. That sounds too much like a job and I don’t want or need a job.
@@MiniBikeMike that will work for me. Shipping to peter lynch. 90 glebe road. Spofford Nh. 03462.
Im converting all mine to ct70 or ruckus wheels
👍🏻
Ok I'll bite, what is "bad" about the 190/212cc engines out there?
Probably nothing, with todays engines. Like most, at one point, I felt the need to build a “fast” bike. Well, 15 years ago, the biggest around was a 190. But, it was meant for race applications only, it didn’t even come with a lighting/charging coil. I bite the bullet and picked one up, but the damn thing ran hot, no matter what I tried. It vibrated and ultimately, I just wasn’t a fan of how it looked. Even though I want something slightly bigger than 70cc, I still want it to look stock. I’m not a fan of oil coolers or not being able to bolt on the engine guard. I’m sure the current engines are fine, just not for me……and I’m past needing to go fast.
@@garyhumphreys5742I’ve done a Zongshen 190 and a Piranha 140. The 190 is obviously fast, a good cruiser at 45-mph without high “screaming” revs, however they are very “thirsty” especially when “gulping” from a 0.7 gallon gas tank.
I think the 140 is the better power upgrade and are known to be “bullet-proof”. With the 140, the displacement and power are basically doubled, that is when swopping out a CT-70’s engine.
And, on a final note, the investment in a 140 doesn’t require as much of a deep-breath, nor taking out a mortgage.
@donsoule6411 Piranha 140’s must be better built than they were 10+ years ago. I’ve built over 60 bikes with Lifan engines…..never once an issue. I used three Piranha 140’s, years ago……1 was ok, 1 randomly bent a valve, 1 had the flywheel break off at the crank.
Like!!
Thanks!
🤩 "promo sm"