Sweet ride man alright dynamite I know exactly how much time and work goes into building these sweet rides Im just getting my bike together just installed the bt80
Oh ya and it's worked quite nicely this whole time. Still going strong to this day. Added a 36v front electric wheel to help with low speed acceleration to take some strain off the clutch.
Nope, it's actually a rather popular bike to install engines into. Not many use a bt80 though plus a 36v hub motor making it a hybrid (in its current state yes I know I need to make a new video).
I'd say the bt80 is quieter than the 80cc with centrifugal clutch I had on my first build, my mountain bike. But then again the engine on the mountain bike was pretty cheap and lacking build quality compared to the bt80. 49cc engine is the quietest and four stroke is probably quieter than that. I don't have any experience with the 4 Stroke kits however I did help a friend with a 49cc kit.
I will. Getting caught up with my hobby channel. Will the one with videos centered around a certain theme versus this one which is more or less random and less edited videos. I'll get one up if this rain holds out.
Hows this motor compare in power to the standard 2strokes?? I was told the Bt80 was either lacking in torque or top speed where youd have buy a certain sprocket sizeto compensate for your given needs.. True?? Your sprocket size is what??
The BT comes with a 48 tooth sprocket, which limits top speed for sure. The stock pipe and carb also limit performance by a huge margin. If you're handy with a welder or know someone who is, it's not that hard to cut off the stock muffler and weld up a different pipe to it. I replaced both the pipe and carburetor and can pull from a stop without pedalling and hit a top speed of around 40mph with a 40 tooth sprocket
I guess I need to do an updated video. Hopefully I'll find time and a place. Live too far from slow city roads now. Unless I ride to country back roads I could make a very long video going into town.
Still going strong. Will be changing oil soon. She's changed a lot since I took that video. Only thing original now is the frame and rear wheel. I'll shoot some updated video of her once it warms up.
Good morning question I’m putting a bullet train motor on my schwinn stingray chopper how long did it take you to put it together. And can I still put the sprocket that came with it thank you for your time
There was quite a bit of trial and error, modifications, plus I was still in college. I'd say it took me 24 hours or so broken up through a couple weeks. I modified the mounts from pedalchopper.com and made adapter plates. Then I had to make adapting spacers for the hub centric sprocket mount which reminds me, use a hub centric mount and sprocket or you will shear your spokes. That happened on my first motorized bicycle build.
I used the mounts from pedalchopper.com however I modified their mounting angle to match the engine kit and made adapter plates. Bit of work went into the mounts but not near as much as making my own
@@commandercody38 i was asking the pedal chopper guy! And he say's he only need the distanse between the holes and he can make it to fit's on the motor! Also where do u get the battery and they mount sr? Thanks
@@manuramos9638 I used the hardware from the kit although I'll eventually move it to the saddle bag once I lengthen the wires. I got the battery from amazon I believe. similar to a battery that goes into a computer battery backup system.
*Also, how do you think it compares to the79cc MONSTER 4stroke kit?? Im kind of debating between that&this BT80.. Thats a nice lil build. I normally dont like the lil chopper builds but this one is legit!*
I haven't ran that build so I don't know which one will pull my up my driveway better. I'm not longer at State Tech and now I live at a place with one very steep gravel driveway for a proper butt dyno. I had to reduce the gear ratio a lot to get the torque needed but sometimes I'm still pedaling to help it. If it had some port work done it may work better. I had a YaeCC two stroke, a cheap chinese one and by cheap it was one of the cheaper ones. It pulled me up muddy hills like it was nothing although that build was much lighter. I just need to upload another video with where it's at now. True hybrid, electric front hub wheel, saddle bag and a nice comfy seat.
The big advantage to getting the BT80 is the 12v electrical system, which allows you to connect all sorts of universal motorcycle accessories to your bike (speedometer/tach, lights, etc). It is a well made motor and is pretty reliable as long as you keep an eye on intake leaks. It can also be made to be a real ripper if you replace the stock NT carb with anything else and fit a different exhaust to it (will need to cut the stock muffler off and use the left over as a header to weld to, since no aftermarket pipes fit directly). As for performance, the 79cc 4 stroke is similar to the BT out of the box, but there are performance parts via Affordable Gokarts that will bring it up to 7-8hp. All in all, I'd say if the electrical isn't important to you, go with the 79cc. If you want electrical and want to wire up all sorts of things to your bike without having to hassle with charging/replacing batteries, the BT is the way to go.
I currently use a 30 tooth sprocket however I may go up to a 36 tooth if I don't have enough torque. So far so good. I can even get around the back yard so long as I pedal to help it get started. Just worry about burning up the clutch unless I have a 36 tooth sprocket
@@commandercody38 I use the same two cycle oil thanks 20 gas 1 oil ratio 6 ounces oil added what the book manual say 90 octane gasoline or better gasoline i use 93 octane/grade marathon gas station i mix my gas and oil inside a 1 gallon red tank shake the red tank for 5 min after pour my gas inside a black 3 litter tank for my bike for the clutch under the engine i removed the bolt pour 120ml oil inside the engine before i start the engine i remove the HP CARBURATOR and INTAKE i see how much gas inside the engine looks full i install the same two part back together i tightly screw my bolts when i start the engine i close the carburator i use performance carburator turn on the switch turn the throttle 1/3 what the book say press the yellow button when i look at my engine while trying starting the engine i only hear piston moving and yes i hear spark but engine dont run i try everything what you think i did something wrong any errors i made this is my first time building my bike battery i use super start what good spark plug i should use ngk bosh what gasoline i use shell or mobile what gas octane/grade i use help me out give me good advice
@@Johnjohn-eo6mb My issue was something with the wiring when I first put it together and tried to start it. I'll get some pictures at one point. I would visually check to spark by pulling the spark plug, holding the threads of the plug to the head of the engine and pushing the start button. If you can't see a spark then something is wrong in the wiring.
How's the reliability doing on the BT80 engine. I like the concept but read alot of mixed reviews on this engine. I would like to rear mount one on my Schwinn trike. Since the BT80 has been out about 3 years now I'm hoping the bugs have been mostly worked out.
So far so good. Been over half a year. Will be changing oil before it gets cold. Recently put on a 36v front wheel hub motor to help with low end torque but it died when the wires were sparking. Asked for a return and replacement controller or kit so hope that goes through. Did go to a 36T sprocket which helps torque and didn't change my top end.
Sweet ride man alright dynamite I know exactly how much time and work goes into building these sweet rides Im just getting my bike together just installed the bt80
That exuast is just WOW
Oh ya and it's worked quite nicely this whole time. Still going strong to this day. Added a 36v front electric wheel to help with low speed acceleration to take some strain off the clutch.
More videos please..
Bravoo bravo my friend
I thought I was the only person to put an engine on one of these
Nope, it's actually a rather popular bike to install engines into. Not many use a bt80 though plus a 36v hub motor making it a hybrid (in its current state yes I know I need to make a new video).
If you compare the two engine which is quiter or less noise the bt80 or the 80cc kit with centrifugal installed
I'd say the bt80 is quieter than the 80cc with centrifugal clutch I had on my first build, my mountain bike. But then again the engine on the mountain bike was pretty cheap and lacking build quality compared to the bt80. 49cc engine is the quietest and four stroke is probably quieter than that. I don't have any experience with the 4 Stroke kits however I did help a friend with a 49cc kit.
Can you do more videos of this build?
I will. Getting caught up with my hobby channel. Will the one with videos centered around a certain theme versus this one which is more or less random and less edited videos. I'll get one up if this rain holds out.
@@commandercody38 ok thanks, I've been waiting for a lonng time🤣👌🏽👌🏽
Does it sound quiter compared to 80cc engine without centrifugal..or just same
Hows this motor compare in power to the standard 2strokes?? I was told the Bt80 was either lacking in torque or top speed where youd have buy a certain sprocket sizeto compensate for your given needs.. True?? Your sprocket size is what??
I do feel it's lacking but this is a heavy build. I added an electric motor in front to help up hills and take off.
The BT comes with a 48 tooth sprocket, which limits top speed for sure. The stock pipe and carb also limit performance by a huge margin. If you're handy with a welder or know someone who is, it's not that hard to cut off the stock muffler and weld up a different pipe to it. I replaced both the pipe and carburetor and can pull from a stop without pedalling and hit a top speed of around 40mph with a 40 tooth sprocket
Do more videos please
I guess I need to do an updated video. Hopefully I'll find time and a place. Live too far from slow city roads now. Unless I ride to country back roads I could make a very long video going into town.
@@commandercody38 ok thanks and walk arounds too
Nice build, I have the same engine. So far so good! How's your clutch holding up?
Still going strong. Will be changing oil soon. She's changed a lot since I took that video. Only thing original now is the frame and rear wheel. I'll shoot some updated video of her once it warms up.
@@commandercody38 Good to hear! I will upload a video of my build soon aswell. Probably tomorrow!
Good morning question I’m putting a bullet train motor on my schwinn stingray chopper how long did it take you to put it together. And can I still put the sprocket that came with it thank you for your time
There was quite a bit of trial and error, modifications, plus I was still in college. I'd say it took me 24 hours or so broken up through a couple weeks. I modified the mounts from pedalchopper.com and made adapter plates. Then I had to make adapting spacers for the hub centric sprocket mount which reminds me, use a hub centric mount and sprocket or you will shear your spokes. That happened on my first motorized bicycle build.
Thank you for information
What tipe of motor mount are u using!
For that motor i almlost start doing same proyect sr!
I used the mounts from pedalchopper.com however I modified their mounting angle to match the engine kit and made adapter plates. Bit of work went into the mounts but not near as much as making my own
@@commandercody38 i was asking the pedal chopper guy!
And he say's he only need the distanse between the holes and he can make it to fit's on the motor!
Also where do u get the battery and they mount sr?
Thanks
@@manuramos9638 I used the hardware from the kit although I'll eventually move it to the saddle bag once I lengthen the wires. I got the battery from amazon I believe. similar to a battery that goes into a computer battery backup system.
*Also, how do you think it compares to the79cc MONSTER 4stroke kit?? Im kind of debating between that&this BT80.. Thats a nice lil build. I normally dont like the lil chopper builds but this one is legit!*
I haven't ran that build so I don't know which one will pull my up my driveway better. I'm not longer at State Tech and now I live at a place with one very steep gravel driveway for a proper butt dyno. I had to reduce the gear ratio a lot to get the torque needed but sometimes I'm still pedaling to help it. If it had some port work done it may work better. I had a YaeCC two stroke, a cheap chinese one and by cheap it was one of the cheaper ones. It pulled me up muddy hills like it was nothing although that build was much lighter. I just need to upload another video with where it's at now. True hybrid, electric front hub wheel, saddle bag and a nice comfy seat.
The big advantage to getting the BT80 is the 12v electrical system, which allows you to connect all sorts of universal motorcycle accessories to your bike (speedometer/tach, lights, etc). It is a well made motor and is pretty reliable as long as you keep an eye on intake leaks. It can also be made to be a real ripper if you replace the stock NT carb with anything else and fit a different exhaust to it (will need to cut the stock muffler off and use the left over as a header to weld to, since no aftermarket pipes fit directly).
As for performance, the 79cc 4 stroke is similar to the BT out of the box, but there are performance parts via Affordable Gokarts that will bring it up to 7-8hp. All in all, I'd say if the electrical isn't important to you, go with the 79cc. If you want electrical and want to wire up all sorts of things to your bike without having to hassle with charging/replacing batteries, the BT is the way to go.
What size sprocket do you have on the back?
I currently use a 30 tooth sprocket however I may go up to a 36 tooth if I don't have enough torque. So far so good. I can even get around the back yard so long as I pedal to help it get started. Just worry about burning up the clutch unless I have a 36 tooth sprocket
What did you use to mount the engine?
The mounts from pedalchopper with adapter plates that I made. Everything holding the engine down has loctite.
cool bike i have the same engine kit what oil you use during break in period
Castrols two stroke oil
@@commandercody38 I use the same two cycle oil thanks 20 gas 1 oil ratio 6 ounces oil added what the book manual say 90 octane gasoline or better gasoline i use 93 octane/grade marathon gas station i mix my gas and oil inside a 1 gallon red tank shake the red tank for 5 min after pour my gas inside a black 3 litter tank for my bike for the clutch under the engine i removed the bolt pour 120ml oil inside the engine before i start the engine i remove the HP CARBURATOR and INTAKE i see how much gas inside the engine looks full i install the same two part back together i tightly screw my bolts when i start the engine i close the carburator i use performance carburator turn on the switch turn the throttle 1/3 what the book say press the yellow button when i look at my engine while trying starting the engine i only hear piston moving and yes i hear spark but engine dont run i try everything what you think i did something wrong any errors i made this is my first time building my bike battery i use super start what good spark plug i should use ngk bosh what gasoline i use shell or mobile what gas octane/grade i use help me out give me good advice
@@Johnjohn-eo6mb My issue was something with the wiring when I first put it together and tried to start it. I'll get some pictures at one point. I would visually check to spark by pulling the spark plug, holding the threads of the plug to the head of the engine and pushing the start button. If you can't see a spark then something is wrong in the wiring.
@@commandercody38 I already check NO SPARK show me pictures wiring the box correctly
@@commandercody38 I check my wiring i see a green and orange wire for the horn and light where can i buy this part
How's the reliability doing on the BT80 engine. I like the concept but read alot of mixed reviews on this engine. I would like to rear mount one on my Schwinn trike. Since the BT80 has been out about 3 years now I'm hoping the bugs have been mostly worked out.
So far so good. Been over half a year. Will be changing oil before it gets cold. Recently put on a 36v front wheel hub motor to help with low end torque but it died when the wires were sparking. Asked for a return and replacement controller or kit so hope that goes through. Did go to a 36T sprocket which helps torque and didn't change my top end.