I bought an 80cc engine almost identical to this one and I’ve only been able to start it once but dang it was fun. Hearing the braaaap sound on a bicycle was just sick.
I have a friend who owned a royal enfield. He said that the charm of it is not that it's working, but the fact that you gotta keep it working. Also, if it's not leaking, something is wrong. :P
Holy crap... I subscribed to your channel for the FXR videos since I just got a 2000 FXR4... But I grew up on that street... My parents still live in that house that looks like an old English barn on the corner. Small world.
great job troubleshooting those issues, I'm 14 and idk if I am going to be able to work out the kinks (if there are any) when I get mine. thx for the vid
Lol when you said "hoping up and down the road" at around 2:05 it reminded me when I did my first build and thought that a misalinged sproket would make the wheel move up and down
+carolina beachin thanks. We took your advice on making a rubber motor mount, so I hope it doesn't crack the frame. When we get tired of the gas motor or it blows up, I'd like to take it off and turn it back into a classic cruiser again.
I got a similar kit to that to put on my bike and I put the sprocket and engine on the same way you did and it didn't start. I kept trying I had spark, compression and fuel and for some reason it wouldn't start. then I spun it backwards and it started. the little gear was spinning the wrong way. the way I fixed it was I rotated the coil magnet assembly that underneath the cover next to the clutch cover and that reversed the spark timings and low and behold it runs the correct way now. I'm planning on replacing the chain. I already have an aftermarket master link on it and one of the regular links has cracked
Thanks. The chain tensioner is really badly designed on this bike. It fell off a bunch of times. I think it makes more sense to just shorten the chain so you don’t need the tensioner.
Yeah. We just let the exhaust hang in the wind. Because we were using a rubber motor mount system, I figured solid mounting it to the frame would just make it break faster. Unfortunately, somebody stole this bike two weeks after we made it, so I’m not sure how long it would’ve lasted, but the kids rode the hell out of it for those two weeks, even taking it off road.
Theres a problem with my 49cc where it doesnt go idle and it instead stalls when i stop going fast do you have to do something to the clutch to make it go idle?
You probably need to clean the carburetor jets. That’s normally what causes bad idling. Build quality on. These bikes is pretty bad, so it could be something else.
Yea grease goes on the gear inside clitch case.id check tightness of spark plug too.tends to leak there too.b carefull torquing head bolts.they cheap and tend to strip.ive had a few of these this summer.just spent the 200 bux for a "good"one and its no better so far
Lol nice editing. I forgot what those mufflers sound like (trash) un bolt the bottom thing on the muffler (you won't regret it) (also let's the engine breathe more)
@@hoohoohoblin oh man that sucks! Its an awesome hobby especially when you learn to wheelie. I suggest making another one but dont buy a 50cc kit buy a 66cc (its the same as the 80ccs)
when parked gas isn't going through the engine, it's going into the bowl of the carb, once the bowl is full there's a float that shuts off any more flow from the fuel left in the line. The drip is just from the build up in the muffler, i.e. normal
+bengalslash True, if the float and needle valve is working right. I think ours was stuck open sometimes. Someone stole the bike, so we don't have to worry about it.
What would you recommend as a beginner kit? Im looking for a 50cc motor and hopefully under $300 total. Not looking to race or anything just want something that goes about 30 Mph and can get me around town. I'm not the best with finding parts online and was just trying to find one spot to get all i need for a good price. Im fine with the engine being 2 stroke as i believe those are cheaper than a 4 stroke (correct me if I'm wrong). Thanks!!
+Bamskies780 I don't know. This kit was under $100 including shipping delivered to my house. And you can get a bike from Walmart for $99. But we found that things have fallen apart and broken down on this bike. The chain tensioner is pretty bad, The exhaust manifold gasket blew out, the throttle cable broke, the carburetor leaked gas into the muffler so much that it wouldn't even start and we had to drain it, and it seems to use a lot of gas. I bet this is pretty typical of the cheap Chinese bike kits that you can buy on eBay, that they have various problems and you are always been tanning and fixing. In my case, I love that because my son is learning how to fix things, and this is a perfect way to learn how a motor vehicle works because everything always needs fixing, maintaining, or adjusting. I don't know who makes a really good kit. It seems to me that the best way to go right now would be to build an electric bike, but I know that electric hub kit cost around $200, and then you have to buy a battery for it, and those are really expensive as well. I have seen some 49 cc four stroke bike kits for sale on eBay for around $200, and they might be more reliable, quieter, and cleaner. TopSpeed on the bike we built on flat ground is probably close to 20 miles an hour, but nowhere near 30 miles an hour.
you'll have regular maintenance tightening up stuff. can use blue loctite to help with that, but for $250 all said and done, a 50cc 2 stroke with a simple upgrade HP carb you can go 25mph with the stock 44T sprocket. BikeBerry has everything but they are kind of high on stuff, reselling what they buy online.
you might be running too rich on the needle, but also 16:1 break in fuel cuts power down. after couple tanks, you can safely go 32:1. i got a $17 hp carb and that added 2mph. for cheapness a 2stroke wins, but 4 stroke is reliable and with more torque
You are my favorite iron barrel Royal Enfield 500cc Kickstart bike video ever. I still have my 2006 Royal Enfield 65 model blah blah blah any thoughts on your Royal Enfield to share?
We ended up putting a front brake on it because it was just too fast without it. We didn’t shorten the drive chain, but we should have. The tensioner kept falling off. Somebody stole this bike before we could get it perfected.
How is your motor mount held up in the front using that rubber inner tube mount I myself have the same bike has a smaller tube frame. And was just curious
+Dylan Bryson I don't remember exactly who I bought it from. I just went on eBay and typed in motorized bike kit. You will find a lot of people sewing kits that all look pretty much the same. I went with the one that was the cheapest, right around $100 with free shipping.
I don’t know. Someone stole this bike after two weeks, so we didn’t have time to really get to know it and all of its problems. These things do break down all the time because they’re cheaply constructed, so you’re going to learn a lot.
If you ever have to put one of those big rubber bicycle grips on again, the secret to making that job easy is to get a blow nozzle and connect it to an air compressor. Push the end of the nozzle into the hole in the end of the grip and while the air is blowing, push the grip onto the handle bar. Easy peasy. Make sure you cap the other end of the handle bar, since most are just a slightly bent tube. Otherwise, cool video. -b
Can it climb any hill at all? Because I've been thinking about getting one of these. I'd still get it regardless. I can't get the 80cc version due to the motor vehicle laws where I live.
If the gas is running down from the tank, it's running down into the crankcase, not the muffler. Could make it hard to start (flooded). Could blow a crankshaft seal. Fix that.
That's what I would have thought too, but it definitely went into the muffler. Someone stole the bike last week, so we don't have to worry about troubleshooting it. It was a lot of fun while it lasted.
I don’t know. We had problems with the gas leaking into the muffler, and we didn’t really keep track of how much gas we were putting into it. Someone stole this bike a few weeks after we built it, so we didn’t have time to calculate fuel economy before it was gone.
+Item Reviews I think so, but when we had to order a replacement throttle cable, they were short ones and long ones, so you have to make sure you buy the right length. To install it, we had to take the top off the carburetor and hook it into the carburetor slide.
I don’t remember at this point. I don’t think we used it on any parts. Somebody stole this bike two weeks after we built it, so there wasn’t time for the nuts to vibrate loose.
I hate to say it but you've completely skipped over the part that I needed which was putting the motorcycle engine itself together because it came and parched like where does this filter go and where does that folk go and how about this part what is it and where does it go? So where's the video for that I need a link. Shalom
I don’t know. The kit I bought was already assembled by the manufacture. I showed the steps that we needed to do to put it in the bike. I didn’t know people sold these kits in pieces as well.
I don’t know. I don’t think it was very good or efficient. Someone stole this bike two weeks after we built it, so we didn’t have much time to put miles on it.
How fast is it do you think? Also can you still peddle and operate it like a normal bike if hypothetically it ran out of gas or something went kaput and the motor stopped functioning?
+Rookie Freediver maybe 15 mph. It isn't very fast. The pedals still work, and you can lock the clutch lever and ride it with the engine turned off if you need to.
johny Boy best way is to remove it put it in a vice heat up red hot with a torch and bend it it even tells u in the book don't try to bend it on the engine u will break the engine
Yes. It was pretty slow. I don’t think it ever did much more than 15 miles an hour. Someone stole it a couple weeks after we built it, so we didn’t have time to hot rod it.
@@hoohoohoblin well that just sucks sorry to hear about that, but that was an awesome review hope you guys can build another one soon I ordered the same engine from China so that's kind of good it doesn't go too fast I don't think I want to be riding a bicycle going more than 40 50 miles an hour but good luck guys!..
Maybe 18 mph. It goes about as fast as a person can pedal it when they're going as fast as they can. They do sell an 80cc version that looks the same but has more power. In many states, if the engine is over 49cc, it is illegal to ride without a license plate and a motorcycle driver's license.
Jasuma Gaming the little one give off less vibration..the bigger one give more vibration but it all depend on how you mount the front mount directly it give only a light buzz.i have both the 49 and 66cc versions
+Vertigo I don't think they have brand names. It's just a generic Chinese motor. I don't know if they have one factor that makes them all over there, or if there are different ones, but none of them put any brand names on the engines on the box.
They are 50, 66, and 80cc 2 strokes. They are not as big as advertised. Usually what they call an 80 is actually a 66cc. The 100 is an 80, and they have a new one advertised as an 80, and it is an actual 80cc. It's new.
I'm in California. I'm pretty sure these things are illegal here now, but the law used to say that any motorized bike with an engine smaller than 50ccs can be operated on the roads without a license plate or insurance.
Apparently some child labor laws were subverted here. At least it was a Chinese motor and you are in the Peoples Republic of Cali so no will notice :-D"Hunred buck Joe you ride me rong time....no fatties tho" (my best Chinese accent)
+azdesertdog Yes. We may have broken child labor laws, but the kids learned a lot about mechanics when we put it together, and then leaned a lot more when the master link broke and the chain came off, and when it wouldn't start because the gas drained into the muffler, and when the throttle cable broke, and when we had to re-solder the kill switch wiring, and when the choke kept turning back on from the vibration, and when the throttle stay pin fell out into the handlebar, and when the exhaust manifold blew out and made an oily mess on the cylinder (and a much cooler loud motorcycle sound) , and when the chain tensioner fell apart and we couldn't find the nut in the street. All in one week! I was hoping this project would teach my son and his friends how vehicles work, and it has been great for that purpose. Not so great for reliable transportation, but lots of fun anyway.
