Ct70's. Great little trailbike. Sturdy beasts. Japanese quality at their prime. I remember i wanted one of these when i was younger. But my father didn't see it as i did. He knew very well the dangers of riding regular motocycles. Theres no surviving a motorcycle accident. Still i think these trailbikes are the sturdiest and the craftmanship is the best Honda ever put out.
Thank you so much for what you do. I would have never got my headlight bucket wired without this video. You provide such a great service for us weekend mechanics. God bless
this video was a big help for me , but what I really need is where to mount the electrical components around the battery box inside. CDI, rectifier, starter seliniod, flasher. thanks for your help.
Good Video for the beginner, You give a lot of your time helping others. Quick tip on Lifan engines. Always show checking oil level before starting an engine. I have seen several Lifan motors that are 4 spds and the oil level is not checked & low oil level in these Lifans cause Clutch plate to stick & clutch wont work. there are tricks to try and unstick this issue., but very important to always show checking oil level prior to start up. Thanks
Crossing my fingers that you'll do some ST90 videos. I remember you had a video with a swapped engine showing the bracket you made to mount the engine. Glad to see that you're back.
Great video Mike, I am about to fit a lifan 110 to an early ST, planning the wiring just now as I want to include indicators. Might end up making the harness as can't find one that includes them.
I have done a motor swap on my Honda c50 and put a 110cc in it. When it comes to wiring it up will the TB422 work for my bike being I'm going to have all lights and turn signals. Also no electric start kick start only. I really enjoy watching your videos. You are a very good teacher.
Hey Mike, that st70 is from the japanese domestic market. St70 export model. If you want some info on them or the European st50’s and st70’s I would be able to help you out. I have been collecting and documenting these for a while now. Saying hi from Belgium, Europe.✌️
I’m working on a 72 ct70. Your videos are amazing. I noticed that the throttle grip and cable are different on your bike. Would you say that it’s better than the original?
@@RonSalyers The original internal throttle is a horrible design….in my opinion. I use an Amazon $15 throttle/cable kit on all my bikes, it’s so much better.
Great video the bike looks great and sounds great to. I have a 1968 CL 90 do you the that engine will work in it and where did you get that motor at . I like it’s just a kicker and manual clutch. Does it have to have the battery to run?
No, this engine does not require a battery to run. Unfortunately, the 90cc bikes used a completely different engine mounting bolt pattern than the CT70 and Z50…..so, this engine is NOT a direct bolt-in for your bike. It can be made to fit, but takes some fab work.
You are back. Another CT70 saved. You friend Don from Jersey. Let me know if I can get a copy of the old Z50R videos. I would like to have them for your build.
First let me say I'm so glad I found the new channel (Eastcoastish pointed me over). I recently bought 69 and 70 CT90 basket cases and have enough parts to do the 70. Neither has an engine so I'm buying a Chinese manual 125cc (no name) engine from ebay. Is that harness just for a Lifan Mike or will it work with other Honda clones?
We're you able to get your running and tail light powered of only DC? I've checked your other videos and only saw the headlight conversion. ALso my right switch control has running light and on but they are both on or off. Lifan gy3 ct70 clone
Hi Mikey! Thank god your back! Quick question.. I am wiring up a ct200 with a lifan with a 12v electric start engine So far I have headlight from the yellow wire but I can’t get a tail light or break light from either switch.. I remember in your last RUclips video you said about sending power back to the tail light but I can’t remember what wires you linked Can you remember? If so what was it
I guess that putting a 125 in a 70 frame. Gives it a little more pep. I have a 72 Honda CL100 I’m playing with. Lots of fun but that motor would fit. It has a bar that runs down in front where the valves are on that motor.
The 125 nearly doubles the fun of the 70cc engine. The aftermarket engines are copies of the Honda horizontal engine, not the vertical engine of your 100.
For the short ride we took, it didn’t seem bad. I may leave the 15 and drop the rear from 38 to 35 or 33. I’ve got future videos planned for this bike.
Thanks for the videos sir! Anything special to note about the clutch cable.? Does it mount directly on the stock handle bars.? I think you omitted that part out of the video. Thanks again.
I apologize for not covering that cable. The Lifan engine has the exact same setup as the original CT70 H engines.....so, you can use an H clutch cable. If you’re installing on a bike that was originally a 3 speed, the left brake perch needs to be drilled out slightly to accept the cable end, it a little bigger than the brake cable end.
Thanks Mike great video as always and glad your back. I have the same bike and installing the same engine, but would like to wire up the indicators. Is there any reason why I couldn't use the Trail Buddy TB421 sub harness which plugs into the original Honda harness. This looks like a simpler option or am I missing something? Why replace the original OEM harness?
I have never tried a sub harness. The bikes I build are usually beat and the original harness is missing or has enough damage to not mess with it. For a bike with signals, I use the TB422, which I’m using in my current build. It’s plug n play and I’ll be fine with wiring within 15 minutes. If you get the sub harness, I’d love to hear your thoughts.
@@MiniBikeMike thanks for the reply much appreciated. I think i will give the sub harness a try. Trail buddy suggested I get a 6V regulator. Not sure why? Everything should handle 12v except for the globes and the flasher relay. Any thoughts?
@@MiniBikeMike will definitely help. I don't have an electric starter so I'm planning on removing all the unnecessary wires to clean up the harness for my application
Mike. I am trying to wire up my bike. I have a YX 140cc motor. The voltage regulator has 5 wires but my Trail Buddy wiring harness has 4 wires for the voltage regulator. What do I do about that?
I’m not familiar with a 5 wire regulator. Unfortunately, I’d recommend purchasing a 4 wire unit. Before you purchase, check to see if your engine is half wave or full wave, they make regulators for both.
Excellent video Mike! Electrical always intimidates me, so this video was very welcoming. Any reason this harness wouldn’t work on my CL70 project if I’m not going to use the turn signals? I’ll be using a Lifan 125 as well.
Hey Mike! This harness would work great in your CL70. The only issue I can see is that the CL70 is a bigger, longer bike and the wires to the taillight might need to be lengthened.
@@rodjones1780 unfortunately, parts aren’t nearly as available as they are for a CT70, but I’ve been able to find most of what I’ve needed from eBay, and I got several things from Beatrice Cycle. When you’re looking, also look for CL50 as they’re primarily the same bike. Good luck!
It shouldn’t be that hard. Send me an email to: ct70help@gmail.com and I’ll respond with my number and maybe you can text me some pics of what we’re working with.
Yeah, I explain in the video that it was quicker to bolt this one on, instead of the other. I didn’t realize I had a complete K0 exhaust when I first laid parts out.
Was putting my carb on today and not only are my bolts too short, but my insulator doesn’t have an o-ring on either side, it’s just smooth on both sides. I really like these engines, but their quality control on the little details is seriously lacking. Another delay. 🤦♂️
@@MiniBikeMike I’m sure it’s just my luck. I think they’re good engines, so I’m not knocking them, just frustration on my part. I refer to your videos constantly for guidance. This one has been very helpful too!
![OhGeesy x Lefty Gunplay - What It Iz [Official Music Video]](http://i.ytimg.com/vi/L0yzW9t2ixk/mqdefault.jpg)
I just purchased a CT70 OEM Harness a 125 that someone did a half of a conversion I was able to watch a video and do all the wiring thank you😊
👍🏻
Rode one in california in the 70s i was 7...also had a threewheeler good times
I have to say it... thanks to your videos, life is much better 🦾👏👏👏
Ct70's. Great little trailbike. Sturdy beasts. Japanese quality at their prime.
I remember i wanted one of these when i was younger. But my father didn't see it as i did. He knew very well the dangers of riding regular motocycles. Theres no surviving a motorcycle accident. Still i think these trailbikes are the sturdiest and the craftmanship is the best Honda ever put out.
Motorcycles aren't dangerous people are...especially young drivers
I've ridden since76 and I was 6
Honda was my first
Thank you so much for what you do. I would have never got my headlight bucket wired without this video. You provide such a great service for us weekend mechanics. God bless
Thanks! Hopefully, I can resume making regular videos soon. The past 18 months have been a tad crazy. 😂
Yes, an hour long video I can listen to while working on my ct190....👌 thank you
Thanks for following along. 👍🏻
Thank you so much for this video! i had no idea how to wire my project with the same engine. Very much appreciated!!!!
Thanks!
Nice video. Thank you for taking the time to make and post.
This video gave me the info and incentive to do the same for my CL90. Thank you!!!
Great video Mike! Had to save this one for Saturday morning with coffee.
Thanks for watching!
this video was a big help for me , but what I really need is where to mount the electrical components around the battery box inside. CDI, rectifier, starter seliniod, flasher. thanks for your help.
Good Video for the beginner, You give a lot of your time helping others. Quick tip on Lifan engines. Always show checking oil level before starting an engine. I have seen several Lifan motors that are 4 spds and the oil level is not checked & low oil level in these Lifans cause Clutch plate to stick & clutch wont work. there are tricks to try and unstick this issue., but very important to always show checking oil level prior to start up. Thanks
Thank you for taking time to film this. I will help me with the install of my new 125cc Lifan into my c70 mod.
👍🏻
Crossing my fingers that you'll do some ST90 videos. I remember you had a video with a swapped engine showing the bracket you made to mount the engine. Glad to see that you're back.
Great build and video, sir
Thanks!
Awesome! You have inspired me to want to do this.
If you watch one of my recent videos, where we put a Lifan in a subscribers green CT70H, it shows just how simple it all is.
Great video Mike, I am about to fit a lifan 110 to an early ST, planning the wiring just now as I want to include indicators. Might end up making the harness as can't find one that includes them.
Trail Buddy has a harness that includes indicator wires. Their part number is TB422. I’ve got videos for that harness.
@@MiniBikeMike thanks for that Mike
Wait! Your back? Fantastic.
Yep. Thanks!
I have done a motor swap on my Honda c50 and put a 110cc in it. When it comes to wiring it up will the TB422 work for my bike being I'm going to have all lights and turn signals. Also no electric start kick start only. I really enjoy watching your videos. You are a very good teacher.
Thanks. Yes, the TB422 will be perfect for your application.
Hey Mike, that st70 is from the japanese domestic market. St70 export model. If you want some info on them or the European st50’s and st70’s I would be able to help you out. I have been collecting and documenting these for a while now. Saying hi from Belgium, Europe.✌️
Thanks. Yep, I’ve had a few of them over the years. This one sold to a fellow RUclips subscriber.
I’m working on a 72 ct70. Your videos are amazing. I noticed that the throttle grip and cable are different on your bike. Would you say that it’s better than the original?
@@RonSalyers The original internal throttle is a horrible design….in my opinion. I use an Amazon $15 throttle/cable kit on all my bikes, it’s so much better.
Great video
Thanks!
Great video the bike looks great and sounds great to. I have a 1968 CL 90 do you the that engine will work in it and where did you get that motor at . I like it’s just a kicker and manual clutch. Does it have to have the battery to run?
No, this engine does not require a battery to run. Unfortunately, the 90cc bikes used a completely different engine mounting bolt pattern than the CT70 and Z50…..so, this engine is NOT a direct bolt-in for your bike. It can be made to fit, but takes some fab work.
You are back. Another CT70 saved. You friend Don from Jersey. Let me know if I can get a copy of the old Z50R videos. I would like to have them for your build.
Unfortunately, all the old videos are gone. ☹️
i like that trail-buddy harness i have to build my own it's cost far too much to send to the USA for one, Les England .
Wow, that was thorough tutorial! Do you think that harness would work for mating a ZS190cc motor into a CT90?
I’ve not had a ZS190, but I would think their stator is a similar setup, so yes, it should work.
Thanks Mike! Done been ordered! 👍😎👍@@MiniBikeMike
I love your videos but it would be great if you put links to the parts you are using. So many choices on Fleabay and the Jungle store.
First let me say I'm so glad I found the new channel (Eastcoastish pointed me over). I recently bought 69 and 70 CT90 basket cases and have enough parts to do the 70. Neither has an engine so I'm buying a Chinese manual 125cc (no name) engine from ebay. Is that harness just for a Lifan Mike or will it work with other Honda clones?
Thanks. This harness was designed with the Lifan engine color wiring, but will work with any clone that is 140cc or smalller.
The ATC 90 petcock was in line and not on the carburetor or in the fuel tank. Works great for Chinese carbs with only one inlet.
Good to know. Thanks!
We're you able to get your running and tail light powered of only DC? I've checked your other videos and only saw the headlight conversion. ALso my right switch control has running light and on but they are both on or off. Lifan gy3 ct70 clone
Hi Mikey! Thank god your back! Quick question.. I am wiring up a ct200 with a lifan with a 12v electric start engine
So far I have headlight from the yellow wire but I can’t get a tail light or break light from either switch.. I remember in your last RUclips video you said about sending power back to the tail light but I can’t remember what wires you linked
Can you remember? If so what was it
The taillight is typically powered by a solid brown wire. The brake light gets its power from the green wire with yellow stripe.
@@MiniBikeMike thanks il look into it, maybe a bad earth as nothing is happening at the rear
I guess that putting a 125 in a 70 frame. Gives it a little more pep. I have a 72 Honda CL100 I’m playing with. Lots of fun but that motor would fit. It has a bar that runs down in front where the valves are on that motor.
The 125 nearly doubles the fun of the 70cc engine. The aftermarket engines are copies of the Honda horizontal engine, not the vertical engine of your 100.
Did that 15 front sprocket make first gear slow for you. Or was it ok, you didn’t notice it? Thanks for the vid, it was fun!
For the short ride we took, it didn’t seem bad. I may leave the 15 and drop the rear from 38 to 35 or 33. I’ve got future videos planned for this bike.
Thanks for the videos sir!
Anything special to note about the clutch cable.? Does it mount directly on the stock handle bars.?
I think you omitted that part out of the video.
Thanks again.
I apologize for not covering that cable. The Lifan engine has the exact same setup as the original CT70 H engines.....so, you can use an H clutch cable. If you’re installing on a bike that was originally a 3 speed, the left brake perch needs to be drilled out slightly to accept the cable end, it a little bigger than the brake cable end.
@@MiniBikeMike thanks Mike!
Awesome mike lmk if you want to sell that blue bike I love it man so glad I seen your page hometown Indiana
That video is over a year old, that bike sold a long time ago.
Thanks Mike great video as always and glad your back. I have the same bike and installing the same engine, but would like to wire up the indicators. Is there any reason why I couldn't use the Trail Buddy TB421 sub harness which plugs into the original Honda harness. This looks like a simpler option or am I missing something? Why replace the original OEM harness?
I have never tried a sub harness. The bikes I build are usually beat and the original harness is missing or has enough damage to not mess with it. For a bike with signals, I use the TB422, which I’m using in my current build. It’s plug n play and I’ll be fine with wiring within 15 minutes. If you get the sub harness, I’d love to hear your thoughts.
@@MiniBikeMike thanks for the reply much appreciated. I think i will give the sub harness a try. Trail buddy suggested I get a 6V regulator. Not sure why? Everything should handle 12v except for the globes and the flasher relay. Any thoughts?
I got the universal harness a while back. Gotta figure out what CDI, rectifier and flasher to use still.
I’ll get to a video on the universal harness within the next few weeks.
@@MiniBikeMike will definitely help. I don't have an electric starter so I'm planning on removing all the unnecessary wires to clean up the harness for my application
Mike. I am trying to wire up my bike. I have a YX 140cc motor. The voltage regulator has 5 wires but my Trail Buddy wiring harness has 4 wires for the voltage regulator. What do I do about that?
I’m not familiar with a 5 wire regulator. Unfortunately, I’d recommend purchasing a 4 wire unit. Before you purchase, check to see if your engine is half wave or full wave, they make regulators for both.
Is that a S65 I spotted in the background? Have you done anything with it or is it maybe a future project?
If you’re talking about the little black bike, that’s an early model C110. No videos on it yet, but I’ll add it to the rotation. 👍🏻
heyy @ 43:36 what is that black tab with that pin pushing up against it above the front sprocket?
That is the controller for the neutral indicator light. It has a green/red wire coming off of it.
Broke down and bought a daytona 190 for my Original K0.. I need a 12v battery setup.. and any recommendations would be Welcomed
I use the smallest 12v battery that my local AutoZone stocks. The number is something like: ET4x…..
@@MiniBikeMike I found a 4 cell lithium battery that is the size of a pack of cigarettes. Very cool.. if it doesn't Explode
@@MiniBikeMike trying to find the correct wire harness for the Daytona is ridiculous. Just ordered a clone grom harness
That brake pedal looks completely different from the CTs as well.
Excellent video Mike! Electrical always intimidates me, so this video was very welcoming. Any reason this harness wouldn’t work on my CL70 project if I’m not going to use the turn signals? I’ll be using a Lifan 125 as well.
Hey Mike! This harness would work great in your CL70. The only issue I can see is that the CL70 is a bigger, longer bike and the wires to the taillight might need to be lengthened.
@@MiniBikeMike thanks Mike, I can handle lengthening the wires to the taillight. I’ll get this one ordered. So glad you’re back bud! 😊
@@mikeb6431 Where do you order parts for you CL70 rebuild? Would like to see pictures as well if you don't mind.
@@rodjones1780 unfortunately, parts aren’t nearly as available as they are for a CT70, but I’ve been able to find most of what I’ve needed from eBay, and I got several things from Beatrice Cycle. When you’re looking, also look for CL50 as they’re primarily the same bike. Good luck!
@@rodjones1780 me too
Trying to find a working speedo for my CT70HK1 4 speed
You might try contacting David Richard at Mike’s MiniTrails in Iowa.
I have a tb161 and having a heck of a time wiring up aftermarket controls on my k3 any input would be appreciated. Speedo too haha
It shouldn’t be that hard. Send me an email to: ct70help@gmail.com and I’ll respond with my number and maybe you can text me some pics of what we’re working with.
Where can I find one of those little engine lifts
I bought this one on Amazon. Seems like it was $70 or so.
That headlight blew fast😂 dang 6v haha
It sure did. Hahaha. I’ll be adding a video on the different types of headlight bulbs available for CT70’s.
Where did you buy the engine from mike
125cc engine 4spd manual
amzn.to/3kCthDT
Also that’s not the exhaust you showed at the beginning of the video.😁
Yeah, I explain in the video that it was quicker to bolt this one on, instead of the other. I didn’t realize I had a complete K0 exhaust when I first laid parts out.
Is the regulator 12v or 6v?
12v
Could you post a link for the voltage regulator please ?
You probably be better off checking there web site
Was putting my carb on today and not only are my bolts too short, but my insulator doesn’t have an o-ring on either side, it’s just smooth on both sides. I really like these engines, but their quality control on the little details is seriously lacking. Another delay. 🤦♂️
That sucks. I’ve used almost 60 of these engines and have never had a problem with any of them.
@@MiniBikeMike I’m sure it’s just my luck. I think they’re good engines, so I’m not knocking them, just frustration on my part. I refer to your videos constantly for guidance. This one has been very helpful too!
keeo posting videos....!
CT70 1991
great video
Thanks!