How To: Installation Guide - 79cc 4-Stroke Bicycle Engine Kit

Let's take a look at the 79cc 4-stroke Flying Horse. This engine kit features a center mounted design, a chain drive system, and a CNC machined transmission.
The engine comes preinstalled with an air intake, exhaust muffler, spark plug, and gas tank. Included with our engine kit are additional parts and accessories needed to get the engine mounted and running.
We'll take you step-by-step to install the engine kit, starting with the preparation needed for your bike such as adding the wide crank assembly, replacing the bottom bracket installing the sprocket assembly, building the motor, air intake installation, engine mounting, exhaust muffler installation, throttle installation, electrical wiring, and ending with fluids. After watching his video you'll be riding in no time.
For more information about the 79cc engine kit and pricing, check the links below:
79cc 4-stroke
bit.ly/79cc_4-Stroke
79cc 4-Stroke w/ Micargi beach cruiser
bit.ly/79cc_Bike_Included
BikeBerry.com ►bit.ly/1FZ8nPp
Facebook ► on. 1wWG4fD
Instagram ► bit.ly/1aM3WxZ
Twitter ► / bikeberrycom
Everything you need to make your own Motorized Bicycle.

[@jaystone3516]

back in the mid 80s me an some friends an relative adapt all types of engine to mountain bike's , beach cruisers , we used 3.5hp to 8hp Briggs an Stratton engines on the heavy frame bikes, we would built are own heavy bike frames like motor cycles , so we could go fast , gearing every thing to go up 60to 70 or as fast as we can make the bikes go, but we always used mag wheel wide fast tires with heavy tread on the tires. there wasn't to many kits like this that we could afford.

[@surand3311]

That is pretty cool idea having 79cc engine installed in a bicycle and probably you did a good instructions on this video......Thanks man

[@CHARLIE1955able]

You think aichi did a good job by not putting grease on those bearings?

[@doomslayer5191]

Damn son! In recently began learning and understanding how engines work and operate! Thankfully I can understand d some of the comments! I've been told two stroke is smaller and more proper than 4 stroke. Except 4 stroke offers higher torque at low rpm. Which means it's probably super good for those climbs!

[@chrishenniker5944]

You have one advantage over a two-stroke, you can use forced induction. I’d love to see one with a blower and fuel injection.

[@captaingreenhat]

@12:00 Tap a divot with a center punch and you will have an easy time drilling. Do it with anything round you are drilling.

[@farrisizwan6148]

14:00 1560 1759 1593

[@wjf213]

A couple months ago, I seen a guy on the side of the road who had an engine on his bike, so I stopped to talk to him about it. He said he got it from you guys and has had it about a year or so now and loves it. He said he's put a few hundred miles on it with no trouble at all. He was a big dude, a good 6'6" and 250 anyway, and he said it moves him right along. He wanted an engine to help him out in this Louisiana heat and he said it does do that and he's very happy. Why don't you guys sell a little large engine, say around 125cc like they have on those MOTOPEDS but without the transmission or maybe one of those GX120 Honda engines that's been stripped down like you did here. Those would be great for some seriously fat tire bikes for off roading and hauling camping gear and what not. Keep up the great work.

[@bikeberry]

That's a great suggestion and we will definitely look into it. We previously only focused on small hobby engines and engines to fit within the regulations of racing circuits. This is our first venture into larger motors and it has been more successful than we anticipated, leaving our inventory completely empty within the first few weeks. To keep cost low for our customers we buy directly from manufacturers, and if we can find a manufacturer we trust we will gladly carry larger engines.

[@wjf213]

That would be GREAT. I was looking at Honda engines again after I watched your video, and I really think they will fit inside a frame if stripped down, BUT that means we'd need to CNC some parts like you have here. I mean you guys, hands down have the market cornered and the skills and know how down pat, so if you did move to larger engines, I know I'd buy a few for my bugout bike "FLEET" so to speak. haha If I could make a suggestion or two, maybe build a few and take them to preppercon.com/ Some things that would prove useful to that group of people are accessories in the form of having the engine with a start alternator combo and it can recharge batteries for cells, flashlights, radios and whatever, and a 12vdc power outlet or better yet a cigarette lighter and sell it as always having a way to make fire on board. I would also show it in the fast mode configuration to get some where FAST, as well as the power mode for hauling more weight at a slower speed. I would offer larger fuel tanks as well to have a decent range, and have the fuel tanks with attaching points so people can hang their own gear off of the tank and it is not just a fuel tank. Maybe even have an easy access spot on the tank for a place for a squeeze bottle of water so you can get a drink on the go. I could go on and on, but you get the idea. I'm really happy you're thinking along the lines of larger engines, because I know the big thing is always POWER and most look at these small engines as being toys and nothing serious to bet your life on. Keep up the great work and ideas.

[@scottlang7564]

wjf213 a 120 Honda will fit most places a 79cc harbor freight will my last build was a harbor freight 212cc. From experience with 79cc and other motors that is far from the best setup and can be very dangerous. The best setup is to mount to the seat tube. The only good thing about that mount is price. If you have access to even a Mimi Mill you can build a much better and safer mount for cheap .

[@scottlang7564]

Another thing that, that mount is good for is say a 5hp Briggs

[@wjf213]

Hi Scott, Thanks for the info. It's much appreciated. I'm always looking for any and ALL info from everyone who has even the slightest experience in this sort of thing. I'm looking to build 10 bikes that are exactly the same that we can use in emergencies and even just to ride for fun once in a while. So, let me get this straight, you installed a 212cc engine from Harbor Freight onto your bike and it's about the same size as the 79cc engines? Can you explain the engine mount in a little better detail please? I wish Bike Berry had a system with 4 stroke engines that are 5 to 8 horsepower. I like the Honda GX engines because it looks like they sit at a 45 degree angle and would fit inside a lot of bike frames unlike a normal horizontal engine would, with the cylinder straight up and down. I mean the GX120 stands 13 inches tall but that includes tank and air cleaner. Remove those and remount them, and I think you could really have a nice low profile set up. I don't think I'd go over 8hp or the Honda GX240 simply because I doubt the frames are really designed to take that kind of power and stress put on them, but what do I know. Stripped down, I think the GX240 would be around 13 inches tall and still fit in most frames, plus it has electric start and as much as an 18 amp charging, which could be very handy for recharging all kinds of electronics in a grid down situation, while riding around. For me running around on flat land here in the south, 5hp would be plenty but in serious hills and mountains I could see going with an 8hp if speed and power were needed but if not, I'd gear down the 5hp and give up a few MPH on the top end. I'd really be interested in anymore info you want to share. Thanks again Scott.

[@thetessellater9163]

Anyone in the EU or Britain should know that, whilst great fun, these can only be used on private land. They are not allowed on cycleways, as in the UK the only powered cycles we allow are electric bikes up to 250 Watts power, under our EAPC Regs, similar in all EU. You can ride them on the roads, but you must have a licence, you must register them, fit number plates, pay Vehicle Excise Duty (Road Tax), have insurance (difficult) and wear a helmet, just like a motorcycle

[@dustindose8493]

Tip for if your drilling holes through round pipe. Take a nail or a punch and hit it with a hammer in the spot you marked so the drill wont move while drilling

[@bikeberry]

great tip for creating a pilot hole.

[@phillyunrau4736]

Yes and government MEANS MIND CONTROLL btw so STOP VOTING and

[@terryspence7609]

Having built and taught planes, motorcycles cars... I can attest you guys did exceptional in the presentation / tutorial, a real pleasure to watch and listen too! Very well done!

[@metamorphicorder]

They did a decent job for such a short tutorial. Ive built several bikes and this is much better than the manual that comes with the motor kits. The manual is pretty decent for being written by someone who is obviously not a native english speaker, but this is pretty good.

[@kevinlee7263]

I wish someone would make an engine like this with a cylinder head angled forward instead of backwards. Seems like it would fit better in most bike frames, look better, and maybe cool better.

[@phillyunrau4736]

And cool better ..as a motorcycle 🏍 engine ..

[@kalebhermann]

Can't wait for this motor to arrive. Was sold out then an hour later in stock so I ordered it promptly. Keep checking if interested.

[@kevinlong7515]

5 months later how is it running?

[@iandavis8989]

8:48 I love how he forgot to put the key stock back in The Keyway LoL

[@tomascharles5080]

I caught that too wondering if they put on after lol.

[@pauls5745]

some clutches have built in keystock I've seen

[@hippiepunktristan7796]

How do you put the key stock back in? It doesn’t fit in mine? I’m thinking that’s why my clutch is having problems

[@aaroncraig2250]

@@hippiepunktristan7796 not sure about these motors but many keyed parts the key must stay in the key way and the part installed over it. Also some have recessed set screws that push directly on the key, meaning if the scew is tight it will block the key going in

[@fullmetaljacket7]

The keyway is in the clutch. You can see it at 8:21

[@kendude8089]

Excellent Instructions

[@MakinEndsMeet69]

Nice installation guys very professional very clean I wonder how my 79cc 2 stroke motor from McCullough would work on one of those it's a 1963 McCulloch chainsaw engine but that year they actually made motors for go-karts and mini bikes I bet you that would be a screamer

[@TheOzthewiz]

YES! I remember go -karts from that era, using TWIN McCulloughs. They were the engines of choice back in the day. Very RAPID transit along with their famous super chargers!

[@phillyunrau4736]

..yes and government MEANS MIND CONTROLL btw so STOP VOTING and

[@williamsuleyman3018]

Just a tip,,If you dont have a centre punch to start drilling the hole on the handle bar,,Just put the drill in reverse and it will make a dimple then drill forward,,The ozzyway

[@robertbrunston5406]

Looks like fun! Thanks

[@F.Krueger-cs4vk]

Excellent video, thankyou for sharing. Unfortunately we cannot ride on road. Purchased cheap 2nd hand motorcycle, no violations from police.

[@RustyShakleford1]

get extorted every month on insurance whether or not you use it on the road. insure is 100$ a month on a bike and 150 on a car its a rip off

[@TheOzthewiz]

@@RustyShakleford1 How do you spell.....REVENUE ENHANCEMENT?

[@jeromecabral192]

Just got mine next weekend the bike will be on the road.

[@XxDJCryptoxXKnights]

Would love to see an installation video on one of these with a jackshaft!

[@thomashamilton8999]

DJCryptoKnight - Dead Channel even better would be an actual cvt set up . the ohv 4stroke pull start mtr. is a huge improvement over dropping the clutch while petaling like crazy. and you can be in public and not be smelling like 40to1

[@teero1292]

Do us a video showing areas of high stress and suggestions of how to best reinforce them.

[@bikeberry]

great suggestion!

[@dennykisella9125]

If I was you I would make my own base plate and weld it in. You would add strength to the frame. Then I would actually weld in a chain tensioner bracket just bolting one on will rotate from the movement of the chain.

[@fredfiftyfour2183]

Should be adding thread lock on all bolts....Also you should not be using the chain tensioner as provided. Since it's a friction fit it will have a tendency to roll into the spokes and lock up the rear wheel causing you to crash or at least wreck the wheel. adjust the chain length to tension it.

[@foxtrottango8745]

Good Video guys... I encourage you to keep learning. Here’s a tip to keep the carburetor and fuel tank clean. Use non ethanol fuel because fuel containing 10% corn ethanol/ethanol draws moisture out of the air and that causes water build up in the fuel tank, if the tank is light steel it will rust? if it’s aluminum it will corrode, either way you will definitely get a water build up near the bottom of the tank that will end up in the carbs. float bowl causing corrosion and jet ports to clog up over time. I’ve been a Small Engine Mechanic since the ‘70’s... that chain tensioner is an accident waiting to happen! If it was my build and the frame had enough room in it? I would just discard that tensioner and take more links from the chain or drill a small hole through the frame if it’s wide enough and use a small bolt and lock nut to keep it from twisting. Because if the (2) U-bolts loosen up while riding? that tensioner could become loose and slip into the spokes, and your going to have a bad and painful day and will be shopping around online for a new rear wheel!! So if you can go straight from sprocket to sprocket without rubbing on the frame?? in my opinion that would be better. Be Safe and Have Fun‼️ 🏍 👍😎👍

[@wingerrrrrrrrr]

Government mandates the sole supply of ethanol laced gasoline, so not much alternative there.

[@foxtrottango8745]

wingerrrrrrrrr we have both ethanol and non ethanol fuel in the U.S, but okay and be safe. 👍

[@theoldmanreed8818]

@@foxtrottango8745 You can wash the ethonol out with water you ad water and shake dont remember the amounts but then let it set and the water and ethonol settle to bottom have bottom tap drain out wter and you have clear gasoline

[@peterkay7458]

Hey very clear video thanks.

[@MrChipBryant]

Good job guys!

[@grtessman]

Except for the scratching the frame part when they mounted the bracket to the motor, then installed....

[@MrSFSTUDIOS]

Rebuilding the wheel hubs with fresh grease might be a smart thing to do first, since they will now see speeds they were never designed for.

[@Lobito1225]

Exactly

[@bnotrtrailvlog]

Wow its amazing

[@RJ-lk5pj]

Look @ creative channel.. typically older versions have a small flat shelf to attach some with a bungee cord- but that channel has one thing is was referred to.. something you see someone selling at a yard sale.

[@grazynazambeanie5963]

well done , and I just happen to have a 79cc engine kicking around

[@notsosilentmajority1]

Very well done video. Of course you have your safety advocates and other critics making comments but the truth is these are fun and fairly inexpensive considering what you get for your money. Just like some of the critics learned through experience and trial and error, so should the next generation of kids and young adults coming of age. I don't like to be the person that got to enjoy these types of things and then start talking about the possible safety hazards and other issues in a severely negative way. It's great to warn others and let them know what they may face but to sound as if these things shouldn't be used and make them sound like they are death traps is wrong. Hey, you critics got to enjoy and experience these things, along with other things that the younger generation hasn't, let them have some fun and learn on their own. It's actually good to warn people about potential pitfalls but don't scare people to the point that they may very well abandon their goal of building or owning one of these fun rides. We didn't wear bicycle helmets when we were kids and we didn't have most of the safety gear that is used today, yet the vast majority of us turned out great and we had a really fun time doing things. Give the warnings but without the doom and gloom. Great video.

[@thomashamilton8999]

Im feeling a ripple in the force . I sense a new and at least a fresh direction that describes and seperates the hazards and product failures connected to motored bike in a box controversy . So just for the sake of gittin.past everything that has been kicked around. Let us ponder just. One brain freeze that all of us allow to blow free and easy without a worry on our completed and engineered to asian communist labor

[@bikeberry]

?

[@rayblade6383]

@@thomashamilton8999 wtf are you talking about son? LOL

[@P9rkour90]

I want one now!

[@thedude2278]

these kits aren't bad but what i had to do to make mine stay solid is change it to a spring chain tensioner system, and put bolts through the shafts on the jack shaft system where the sprocket clamps were because they kept coming off. but besides that, 500 miles later shes been good. thanks for the awesome video bike berry, much appreciated.

[@bikeberry]

The pleasure is entirely ours. Thanks for the support! We'd love to see your build!

[@farrisizwan6148]

14:00help

[@JM-zg2jg]

They aren’t bad, but the hardware I got with mine was soft and cheep Chinese garbage. 40 bucks and a trip to the hardware store later, and no more fear.

[@R_C420]

Careful at full throttle when hitting bumps. Over throttling will rip that crappy PLASTIC throttle cable eyelet apart (maybe Dorman makes a better one). I always thought a spring resisted thumb throttle would be a nice feature on these rather than using the entire grip/hand rest. And mechanical cruise control. Basically a throttle lock that will disengage if the handle bars sway quickly and/or a brake is applied. That is a really good engine mount tho.

[@bikeberry]

Great suggestion!

[@metamorphicorder]

Every kit throttle ive had has been crap other than one i got with a staton inc friction drive. That one used a brake lever as the throttle. I exclusively use brake levers now. I have the throttle on the right side and i use a dual pull brake lever on the left side. I have one drum brake wheel on the front and will soon have one on the back too. It takes a little getting used to for turns. Ive only dumped myself once and that was because i was being dumb and not paying attention at a stop light and i tried to stop go and turn all at the same time. My shoulder still hurts. Dont do that. But the lever throttle is awesome. No hand fatigue. At one point i had a clutch lever for the two stroke on one build and it was like having a cruise control at just under wide open because of the lock on it. Im probably gonna try to get another one like that.

[@kj4ilk]

id want a twisting one like on dirt bikes

[@ericlakota1847]

Pritty nice kit over head valves

[@PauloRoberto-ui3ut]

Brasil , assistindo muito bom trabalho (parabéns) !

[@clavo3352]

Nice video. Well executed mechanics, except for the failure to use a center punch to mark hole for drilling handlebar. A- anyway.

[@robertmiller8578]

I like this engine and am wondering if it will fit a 29 inch mountain bike with a jack shift added to be able to use the gears with the engine and the pedal assist to help and if the governor is removed to allow more speed if this would also be good for both a bug out bike and hunting/scouting bike with a small trail or added

[@randymarsh1164]

thinking my next build might be a 4 stroke, is there a manual clutch option for them yet? I frequently shut my 2 stroke off at intersections and then fire it up again, can you get a good enough pull on the starter while riding it? I also idle around quite a bit at low RPM's guessing this would not work with that setup or I would be burning up the clutch a lot

[@marcs4091]

So after you install the pod filter what happens to the tube coming out of the head. Not having that run back into the carburetor would that cause you to lose horsepower?

[@lorraineramos7150]

is very amazing bike

[@umaxen0048]

Beautiful video. Most will still be UNABLE to accomplish the work! I was going to write a negative review UNTIL you explained SPOKE specifications at the very beginning of the video. What I have learned is the HEAVIEST spokes must be used. Bikes are NOT designed for engines. I'd go with a HD industrial Worksman bike that's manufactured in the USA.

[@farrisizwan6148]

Hwo many

[@doomslayer5191]

Would it be possible to use a dual chain transmission on this 4 stroke?

[@juanarmentamadrigal7071]

Tanks for showing how to connect kill switch.

[@SuperDud3ed]

Very important question, how is stopping? I don't see a manual clutch. Disengaging the engine in a panic stop is imperative for me and my situation.

[@cassandradozier7252]

Will a Kent fixie 700cc bicycle work for this engine or would your 49cc 4 stroke fit

[@ringokidd387]

Awesomeness!

[@mikemakuh5319]

How do you pedal it with your knees sticking out at such an angle?

[@davidparker2173]

I wonder if the extra wide pedals can be put on a modern diamond frameset.

[@robertwebb4075]

Ok i have one of these kits i did everything just like this the question i have is why when i hit the throttle from a stop it vibrates like crazy i pedaled to get started and had to feather the throttle but it still vibrates not as bad but still i torqued most of the bolts not to crazy im just wondering if you can give any advice

[@danfagan71]

This video shows them installing a new "wide crank assembly" (which includes new bearings) for the pedals to clear motor. The video shows brand new bearings being installed without grease. Since when do bearings get installed without grease? This is one of the most basic, elementary steps for installing bearings to ensure they work smoothly and last a long time. I like all the other videos Bikeberry put out, but how does this get overlooked? How many beginners followed your instructions and now assume bearings don't need grease?

[@elcreador6675]

Excelente 🇩🇴🇩🇴🌎

[@larryshaver3568]

how much do the sprocket adaptors cost? I WOULD want to get one of those

[@robertmiller2629]

I like this size engine and am wondering1 how well it would work with a jack shaft to use with the gears of a mountain bike for more speed and how rugged it would be to use on long distance rides?

[@bololollek9245]

Jackshafts are rarely worth it, and especially with this engine size you are sure to constantly snap the smaller gauge bike chain usually used for the pedal drive

[@JohnSmith-pn1kq]

Instead of using the small gas tank, would a regular motorcycle gas tank work? More distance between refills

[@DeathPrevails77713]

project farm makes a better instructional video. and he actually test for performance.

[@fishmonger1526]

this is more of an advertisement for a specific kit as well

[@barking.dog.productions1777]

I agree. These guys are obviously not mechanics, so maybe they should pay project farm to make their instructional videos and just stick with selling kits. I noticed that the new pedal crank went in with completely dry bearings. I don't have time or interest in pointing out all of the other mechanic fails in these videos, but that was the most glaring in this particular video.

[@TheOzthewiz]

PF's engine kits were cheaper too!

[@joemumma5058]

This is a completely different engine ya idiots

[@Matthew-wj8cm]

You got to realise, it's an advertisement. Pf is testing engines, not selling them. He's a great reviewer

[@robertmiller2629]

I like this build but I am wondering how well this engine will work with a 26-29 inch mountain bike with fat tires and a jack shaft installed so that full gears can be used instead of rag wheel sprocket? I have a chance of getting the engine along with a jack shaft kit that will bolt up to it with a semi free wheel front sprocket for the pedals along with a 3 liter gas tank. How well will this work?

[@jerryjames9551]

I have a macargi slugo SS, any ideas for a 4 stroke kit?

[@jordanashworth2747]

So you wouldn't be able to use this on a shifting gear bike correct? Like a 21-24 speed mountain bike?

[@brucelee4869]

Tnx for disclaimer

[@Puffalupagus360]

Pod filter upgrade and straight through Muffler with no re-jetting that engine is gonna give you some trouble.

[@mrcool21]

I have a Fuji 17" frame I would like to put a motor on it witch one should I go with and how many cc

[@charlesbritt4674]

How can I get my bike engine to stop braking the engine drive chain? I have the Bt engine.

[@chriscraft4236]

At about 9:38 you removed a shield but did not put it back on, that shield is part of the engines cooling system . the shield directs air from the flywheel fins over the cylinder fins thus pushing the heat away from the engine. You should show that shield being reinstalled it is an important part of the engine. Just an idea to add to a cool video (thumb up)

[@MarkJones-qn1eg]

In this case with the engine being on a bicycle the air will be flowing by the head while riding. Doesn't need the shield

[@chriscraft4236]

@@MarkJones-qn1eg Nope most engines and very likely that engine have fins in the flywheel which are actually a fan that blows air thru the cooling fins and guided by the shield (s) which OP removed with out that air the engine will run hotter than it should and have a shorter life. Shield should be installed " the air will be flowing by the head while riding" is not going to do the job.

[@connorferguson73]

@@chriscraft4236 this isn't going to be used for its original purpose its going to have air flowing over it, it will be more than fine

[@chriscraft4236]

Nope it going to run hot , at best performance will not be optimal at worst it will live a short run life and not be as good as it could be. Just plain shoddy workmanship 😢

[@connorferguson73]

@@chriscraft4236 the original perpose of this engine is a general purpose engine (a predator 79cc clone) non moving for pressure washers and stuff like that but this bike is going to be traveling tons of air will move over the fins it will stay cool and will not affect the life span

[@senorboardhead]

Center Punch the handle bar hole before drilling to minimize slipping and therefore misalignment.

[@farrisizwan6148]

Bkn kite dh setup

[@Berindei_Stefan]

I have a decathlon Riverside 100 Size M will the motor fit the frame? please answer

[@jhonnytheboy1975]

Great video ….i have a question… where i Can find that “torque converter/ Clutch plate with that sprocket” ????? In the 8:17 minute….. thanks a lot …

[@mikefawc22]

Would the transmission thing work on a gx160 or Honda clone ?

[@marcs4091]

For these 79cc 4-stroke engines with a funky throttles, it works better to use a 2 stroke clutch cable as a throttle cable. There is no ball at the end of the cable that needs to be cut off, therefore no frayed wires coming off your throttle cable because you had to cut off the ball at the end of your throttle wire , which has its purpose but not for this engine throttle setup.👍

[@farrisizwan6148]

Ford

[@WinstonMyers-il5dl]

The 4 stroke motor I bought didn’t have instructions but had everything already done as far as throttle ,kill switch and air filter . I’m still trying to find where the muffler goes or do I have to remove a part to find it

[@afrog2666]

Nice job shaping those brackets.. lol..

[@miguelcintron6595]

will this kit fix a 27.5" schwinn kokomo model ?

[@joe241able]

i dout this engine will fit on my bike the carb barly did

[@xeno843]

How do you adjust the chain from rubbing?

[@desmondmoonbear4143]

How much power can you put into these things before you have to rebuild it

[@bentaylor8817]

Very soft engine components, so don't bother.

[@skylerdiotte]

Do you have a video of a hybrid bike? A gas engine and an ebike conversion kit on the same bike?

[@bikeberry]

we don't have any videos yet, however we do sell a hybrid kit on our website

[@hackzuhackzy9717]

Does the engine come assembled on the bike when you buy it

[@bernardoararal200]

I have a Schwinn Tandem with a Old School Cruiser Frame. I'd like to add a 4 stroke motor. It seems i can place the engine in the front area and just make sure the chain is long enough. Has anyone installed a motor on a tandem frame?

[@OBS_Ford]

Does everything in this video come with the Motor

[@abelesteve9881]

i suggest use a frame bike with suspension, if you hit a pothole at 45km the ride won’t be that nice anymore. i had a friend that have a bad accident , he hit a pothole and frame is so stiff so made a big jump at that speed couldn’t controller, he end it in hospital, anyway just a tip

[@bikeberry]

We agree and encourage every rider to practice safety riding. With suspension frames, be sure to use a spring tensioner when using a suspension system to prevent chain slipping.

[@kxlucifer]

Rule one when riding take it easy..dont speed up..always aviod potholes and sewer i had seen a guy went about 25mph hit a sewer no motor still got banged up good because his wheel hook to the open part of the sewer..

[@hernancastrorivas4918]

Hola me gustaría saber cómo se llama el CVT que le puso muchas gracias desde Costa Rica

[@nickhersheys2706]

Does the muffler adapter come with the kit?

[@vasdia30]

how do i adjust the engine..for 4 stroke engine 49 cc

[@danielhoover2790]

Growing up in the 1950's, many kids had Whizzer motor bikes.

[@kanaisolomon7642]

What specific 4 stroke oil, can you send a link please

[@Ivanofkoshinkaisokanryu]

Is there a video for putting this on a tric ?

[@mikebiggums7184]

Hey so my carb keeps flooding and gas leaks out the relief valve, any solution to that, I have the carb in this video

[@robertmiller2629]

I like this motor and am wondering 2 things one us grow well it will work with a jack shaft set up to be used on a mountain bike with the gears and 2 how much is this engine and where can I purchase it?

[@donroberts1876]

Will this engine fit a 29 inch cruiser

[@MrSqueakinator]

you ought to put some bearing grease on those new crank bearings

[@frigglebiscuit7484]

that exhaust adapter gave me a performance heart attack.

[@xxmetallica83xx82]

Frigglebiscuit I’d only need the “AdApTeR” lmao

[@mangreat71]

How many miles can it get on a full tank. ?

[@gagew4653]

Question is does rain get in that air filter

[@alexisperezguemes4205]

c When will it be available again? On the page it appears as sold.

[@tomson1755]

Can someone tell me what theme is used at the beginning of this video I've been looking for a long time

[@squrilebrain]

folks on a 4 stroke motor do not use 87 oct tang gas. use 97 oct tang gas in it. this will make your motor run far better and last longer. I know I ran a firewood business and I had a wood splitter that ran on 97 oct gas and it ran like a champ. a couple of tips. if you have a bike rack on the back you can mount the gas tank on it and you can change out the sprockets on the clutch you can get one with fewer teeth on it for more power or you can buy a bigger one with a lot of teeth and go for speed. have fun on your build folks .

[@garychief2338]

I just need a four stroke kit that has what you need to upgrade from two stroke kit i already own. (4stroke motor, motor mount, transmission, new chain maybe) and a plastic tank, the metal ones keep cracking near mounting studs.

[@kxlucifer]

Gary Chief i install many of these guys gas tanks never breaks on me ...its simple it only breaks if over torque.here a unique trick use a an old tire to place between frame and tank then bolt it on snug.it wont move or break...

[@garychief2338]

K Lucifer. I know that tire tube trick, have not overtorqued. Even received a new tank with two cracks. Have resorted to epoxy to hold the tank directly to the frame

[@kxlucifer]

Gary Chief damn.dont know then i just maybe lucky to not snap them then

[@RazofSD]

Bike berry made a completely street legal EPA approved 2 stroke that might interest you

[@maybedos]

Grease your bearings or your cranks will feel chalky and will mess up pretty quickly. Done this mistake as a kid when I forgot to grease my headset and they were done in 3 days.

[@bikeberry]

Completely agree. Thankfully all of the bearings came pre-greased.

[@nomadicscrapper2965]

BikeBerrycom they often do. Idk I'm probably going to grease mine up pretty good cause they are going to spin alot faster alot longer.

[@cibdizzy]

Where can I just buy one already installed?

[@zanelile8917]

Install this kit on a 3 wheel cycle ?

[@ericlakota1847]

I can see chain ring not doing to well but only time would tell the whole crant looked solid tell the sproket but its only pettal side

[@kevinl1797]

I neex the link to the cnc short head

[@robertmiller9142]

I want to get one of these engines but I have 2 questions first. 1: I have a multi year mountain bike and want to install this engine on it can a jack shaft kit be used with this engine for more power and speed and if so what kind and how to install it? And 2: even thoe this engine has an oil reservoir built in that you fill do you still need to do a 3/1 mixture of gas and oil like you do with 2 stroke engines? Please let me know.