I'm not sure how, but some random day in July (2021), I came across the motorized bike on the internet. I've always had an interest in vehicles, driving, and have even had quite a bit of time on ATVs at friend's and family's places. The fact that there was a budget option for me to get my hands on something with an engine was astonishing. The engine costed $200, and more for a bike with an open frame.
I didn't want to do it on my primary mtb, because I still would use it for pedaling/normal bikerides, and it has suspension so there wouldn't be room to fit a motor anyway. But by August, I had enough to get a bike and the motor. $250 to be exact.
I scrolled through Kijiji for used bicycles with the right frame size, and eventually came across a good deal. A near mint CCM bike, open frame, brand new tires too. The only downside is the paint. It is a dark metallic green with orange CCM stickers on it. It was a great deal being $50, So i picked it up.
Next, I bought the engine from Amazon. When I got the engine, I immediatley began assembling it onto the bike. Now assembling the engine onto the bike was a blast, but I did run into a few issues. It took a like 2 hours over the span of a couple days to get it together. Once it was ready, I took it outside for a first ride.
I pedalled, released the clutch, and after a few tries, it started up! But there was a major problem. The throttle wouldn't move, and the bike proprelled itself forward, wide open throttle. Thanks to the kill switch, all was well.
After doing a bit of research, I found out that I had assembled the throttle cable assembly incorrectly. I fixed it the next day, and it started up and ran great! But then there's problem #2, less major, but still a hinderance to my enjoyment. There was a fuel leak. It would drip all over ther place. So I had to drain out the tank, and fix the fuel line.
Luckily it was quite easy. After that, I was back on the road! Going around my block, though the neighborhoods, until... "POP!" My chain popped off as I was going around a corner, locking up my back wheel. The masterlink just came off mid-ride. I put it back together though. I was yet again back on the road, until another "POP!" The chain again. This time a random link just fell apart. I took the chain off, and saw that every single chain link was loose. It could come apart anywhere easily. So I hammered down every single link on both sides of the chain, and this took forever. But after, the chain was nice and strong, and I was off.
I drove the bike all over my town, and it was so much fun! But of course, I wanted it to be faster. Back to Amazon! I ended up buying an MZ65 clone pipe for $70. But while unbolting the old exhaust, one of the bolts snapped right off, leaving half the bolt inside the cylinder block. It took alot of work to get out because I didnt't have any left hand drill bits or extraction pieces. It came out though after some work. I bolted on the new exhaust, and I went to go start it up.
As soon as it started, I couldn't stop smiling. It was the best thing ever! It was stupidly loud, but so powerful. The acceleration had doubled and the throttle response was instant. I had alot of fun with this. I daily drove it to and from my school nearly every day with my ridiculously loud pipe, and the cops didn't even care! I drove right by the police station every day on my way to school. But soon it was winter and it was time to put it away.
I moved in December, and I realized what I had to do. The place we moved to had insane hills, and my bike couldn't do it with only an upgraded pipe. I did keep the 44T sprocket on because it was greared more for torque than the 36T. I also wanted to paint my bike, because the metalic green and orange was a weird color combo, and I came up with a better one. Dark grey and blue touches would look really clean. So after alot of research and posting questions on forums, I went on a shopping spree on Amazon. Here's what I oredered:
1. Racing Carburetor, one of those clone ones you can get anywhere
2. Jets, My move resaulted in a huge change in altitude, so it would be nice to fine tune my carb for it.
3. A slide-on muffler, the pipe is so loud, I don't want to make my new neighbors hate me
4. New throttles, the stock ones have the hard plastic grips that get very uncomfortable, so I got nice rubber grips with blue to go with the color scheme
5. High Compression Cylinder Head, compression means power, and power is needed for these hills.
6/7. So my fuel line was hardened right up fomr heating and cooling over time, and I needed more fuel line. And my fuel filter cracked while I was taking it off. So I found a thing for like $11, It came with a fuel line(In blue) , 2 fuel filters (Also in blue) and a free air flilter that was better than the one that came with my racing carb, it was a bit bigger. That's number 6.
Number 7 is an offset intake manifold. My frame just barely fit the NT carb, so I got the offset piece to fit my new carb. Hopefuly it works.
8. Chain tensioner pulley, just much more convinient, i dont have to adjust it like I did with the stock one, and its "safer"
9. Fenders, hopefuly will help keep my bike cleaner. While I was riding with no fenders from August to November, my whole bike frame and engine got coverd in mud, I had to clean my engine like crazy to get it to look good again.
11. Sylicone exhaust joiner piece, so I can join my muffler to my expansion chamber. Both my muffler and expansion chamber have 1" OD so I needed sometinhg to slide over top of them to connect them, while adding a bit of a bend to clear my frame
12. Picked up an NGK BR6HS spark plug pack, for better engine performance than the stock chinese one.
Since I had my engine off to clean it, and for painting my bike when it warms up, (I'm writing this as of December 8th, 2022) I decided i'd have a try at some basic port work. I pulled out the dremel and some bits, and expanded the exhaust and intake ports only by a couple MM, but hopefuly it will add a slight power increase.
I still need to expand the gaskets to match the ports, and I might do some opening up and smoothing the offset intake manifold. I'm waiting on a few more parts in the mail, but I guess I've got to test my patience as I have to wait for the snow to melt before I get my bike going again, and it's too cold to spray paint outside. Thats all for now until I get working on it in a few months.
Moderators Note:
Fixed "The Great Wall of China" solid wall of text to make it easier to read.
I didn't want to do it on my primary mtb, because I still would use it for pedaling/normal bikerides, and it has suspension so there wouldn't be room to fit a motor anyway. But by August, I had enough to get a bike and the motor. $250 to be exact.
I scrolled through Kijiji for used bicycles with the right frame size, and eventually came across a good deal. A near mint CCM bike, open frame, brand new tires too. The only downside is the paint. It is a dark metallic green with orange CCM stickers on it. It was a great deal being $50, So i picked it up.
Next, I bought the engine from Amazon. When I got the engine, I immediatley began assembling it onto the bike. Now assembling the engine onto the bike was a blast, but I did run into a few issues. It took a like 2 hours over the span of a couple days to get it together. Once it was ready, I took it outside for a first ride.
I pedalled, released the clutch, and after a few tries, it started up! But there was a major problem. The throttle wouldn't move, and the bike proprelled itself forward, wide open throttle. Thanks to the kill switch, all was well.
After doing a bit of research, I found out that I had assembled the throttle cable assembly incorrectly. I fixed it the next day, and it started up and ran great! But then there's problem #2, less major, but still a hinderance to my enjoyment. There was a fuel leak. It would drip all over ther place. So I had to drain out the tank, and fix the fuel line.
Luckily it was quite easy. After that, I was back on the road! Going around my block, though the neighborhoods, until... "POP!" My chain popped off as I was going around a corner, locking up my back wheel. The masterlink just came off mid-ride. I put it back together though. I was yet again back on the road, until another "POP!" The chain again. This time a random link just fell apart. I took the chain off, and saw that every single chain link was loose. It could come apart anywhere easily. So I hammered down every single link on both sides of the chain, and this took forever. But after, the chain was nice and strong, and I was off.
I drove the bike all over my town, and it was so much fun! But of course, I wanted it to be faster. Back to Amazon! I ended up buying an MZ65 clone pipe for $70. But while unbolting the old exhaust, one of the bolts snapped right off, leaving half the bolt inside the cylinder block. It took alot of work to get out because I didnt't have any left hand drill bits or extraction pieces. It came out though after some work. I bolted on the new exhaust, and I went to go start it up.
As soon as it started, I couldn't stop smiling. It was the best thing ever! It was stupidly loud, but so powerful. The acceleration had doubled and the throttle response was instant. I had alot of fun with this. I daily drove it to and from my school nearly every day with my ridiculously loud pipe, and the cops didn't even care! I drove right by the police station every day on my way to school. But soon it was winter and it was time to put it away.
I moved in December, and I realized what I had to do. The place we moved to had insane hills, and my bike couldn't do it with only an upgraded pipe. I did keep the 44T sprocket on because it was greared more for torque than the 36T. I also wanted to paint my bike, because the metalic green and orange was a weird color combo, and I came up with a better one. Dark grey and blue touches would look really clean. So after alot of research and posting questions on forums, I went on a shopping spree on Amazon. Here's what I oredered:
1. Racing Carburetor, one of those clone ones you can get anywhere
2. Jets, My move resaulted in a huge change in altitude, so it would be nice to fine tune my carb for it.
3. A slide-on muffler, the pipe is so loud, I don't want to make my new neighbors hate me
4. New throttles, the stock ones have the hard plastic grips that get very uncomfortable, so I got nice rubber grips with blue to go with the color scheme
5. High Compression Cylinder Head, compression means power, and power is needed for these hills.
6/7. So my fuel line was hardened right up fomr heating and cooling over time, and I needed more fuel line. And my fuel filter cracked while I was taking it off. So I found a thing for like $11, It came with a fuel line(In blue) , 2 fuel filters (Also in blue) and a free air flilter that was better than the one that came with my racing carb, it was a bit bigger. That's number 6.
Number 7 is an offset intake manifold. My frame just barely fit the NT carb, so I got the offset piece to fit my new carb. Hopefuly it works.
8. Chain tensioner pulley, just much more convinient, i dont have to adjust it like I did with the stock one, and its "safer"
9. Fenders, hopefuly will help keep my bike cleaner. While I was riding with no fenders from August to November, my whole bike frame and engine got coverd in mud, I had to clean my engine like crazy to get it to look good again.
11. Sylicone exhaust joiner piece, so I can join my muffler to my expansion chamber. Both my muffler and expansion chamber have 1" OD so I needed sometinhg to slide over top of them to connect them, while adding a bit of a bend to clear my frame
12. Picked up an NGK BR6HS spark plug pack, for better engine performance than the stock chinese one.
Since I had my engine off to clean it, and for painting my bike when it warms up, (I'm writing this as of December 8th, 2022) I decided i'd have a try at some basic port work. I pulled out the dremel and some bits, and expanded the exhaust and intake ports only by a couple MM, but hopefuly it will add a slight power increase.
I still need to expand the gaskets to match the ports, and I might do some opening up and smoothing the offset intake manifold. I'm waiting on a few more parts in the mail, but I guess I've got to test my patience as I have to wait for the snow to melt before I get my bike going again, and it's too cold to spray paint outside. Thats all for now until I get working on it in a few months.
Moderators Note:
Fixed "The Great Wall of China" solid wall of text to make it easier to read.
