KZfaq has turned into complete s*** lately, this is one of the only channels that is still worth watching.

I'm glad that the supervisor was there to oversee your work

I raised the clip one notch on my moped's carburetor and the performance was immensely improved

Glad to see you alive and kicking. Thanks for the ride.

Best hack I've ever seen for these. THANK YOU !!!!! I was going to buy ...stuff...to change timing. Not now 😊😊😊😊😊😊😊😊😊😊😊

Thanks man, this helped relieve my stress. The first part with the magnet, took it out to check my seal # and flipped it on installation.

Very informative video thank you and I'm looking forwarded to the future build.

yaaay been waiting for your new vid to come out! Love it! - Bikecuh

Thank you for another great video and basically answering my questions. About the clip on the needle seat. Thank you again

Your a God at tuning these things and that gas bike frame with this motor will be awesome

nice vid as usual. i found a good amount of play in my yd100 without filing the key at all. kinda nice to be able to play with it actually. peace!

I have that same frame and it works so well I recently hit 45 mph on it.

Nice video, just got my Seeutek out of break in! Thanks for the tips aswell

Yes sir 🚲💨💨💨 these bikes like to run at high speed and sound wonderful 💨💨 and good info the timing 💨🙏💯

Cool good info you passed along. And yes.. we were all wanting to see this wide open down the road. But, I get it. guess we will have to be patient for the update. I might consider getting this. The other motors in past I just felt was to china.. so never bought them. But, this is a great step in right direction.

Let’s go more phantom 85 vids!!

I can’t wait to see the new bike frame

omg, i just got back from pushing/riding my motorised bike, it broke down!!! miles and miles i had to pedal it. must be the spark!!!! i kept thinking i must take a spark tool and spare cdi etc like la hover said!!

Very usefull video as always. If i replace the standard 6volts magneto coil with a 12volts magneto coil, it will damage the cdi?

Hi la hover I would like to thank you for the amount of information about Motorized bicycle.as it is my first china doll engine I bought off eBay is pretty nice I ride a bianchi mountain bike with a 80/66 cc and I want a next one maybe 100/85cc thanks again I’ve learn a lot of very useful information.i am 45 years at this time and enjoy crushing around on my bicycle ps I also own sports bike so speed is no problem when I need some bye from sunny Antigua and Barbuda wi

Interesting i might have to try this i would love a chill cruise speed

Hey I've been watching your videos for a while while going through the hoops of my own bike build. I had a cool idea about installing an electric bike wheel on the front of my motorized bike. Doesn't seem like anything could go wrong xD

Thanks for the tutorial.My bikes been a bit off and moving the clip about hasn't done squat.I even went to a BR5HS for it's hotter spark as its ok in winter.It just wasn't right.I f'd up and thought 25:1,because of the 80-90F the last month would make the motor last longer,but now I see the DUH in that.Happy Trails.BTW.Even with the $140+ 'alloy wheel sets' you really have to check the bearings often.

Ive had my crank seal leaking so badly that oil poured out of the stator cover as soon as I loosened the bolts, but engine still running! Those seals are tricky sometimes and each side is of a different thickness.

I watched this clip just now for 2nd time just so I knew i was doing it rite and before I even jumped into it with sanding it down I just LOSEN nut and moved it back just to see results and it definitely made engine smoother And . listen this cat he's good with it guys enjoy and be safe 👍👍.now time to get the sanding!!

Hey, what's some good advice for building a phantom 85 for the first time? Not my first rodeo building a motorized bicycle, I got a BT80 powered hyper 7 speed cruiser on my porch, I've had a zeda triple 40, that one was a blast stock hitting 40+, a 49cc 4 stroke on a Kent Ridgeland, plus I have a Worksman trike that I'm put a 212 predator on.

Glad you are okay after the storm! I was thinking about getting one of these, but I changed my mind. I can hit 42 with the Don Butler motor (just ported with high compression head and fake MZ, 44t) I've had it for about 2 weeks now. I am very happy. I have it on my Trek. You would like it. I had to take off the air filter and set the needle all the way down lean, with the bofeng. I'm going to eventually dig out my 21mm PWK . Have fun and be safe!

Wonder if you can get offset woodruff keys for these like you can get for cars? Might have a few more options.

I really like the phantom engine for it's lil size it has a lot of power definitely a sweet engine.i can't wait until someone comes out with a plug and play kit with a big bore jug.like a 54 ,56 mm piston

I did not know you could adjust the timing on these engines. Thanks

Okay so I'm going back to this video and I need your information this video is on adjusting the timing on these phantoms I have my phantom in great shape it's running great it's just when I hit a cruise it starts 4 stroking

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?

I burned a hole on my piston messing with the ignition timing. Hard to find good pistons. Any recommendations.

Do u think the zeda 80 will put out more performance and go faster with an upgraded carburetor and a racing cylinder head

I'm putting an engine on a Schwinn Stingray with a Headstrom trike rear end. Both rear axles have traction via freewheel sprockets. This makes it so I have to pedal start the engine. I think I'm running a 25 to 16 crank to center shaft. And boy it still takes a ton of leg to start it. Sometimes it kicks over on the second try. Other times it takes a block to start.

La hover my phantom 85cc make a really loud rattling noise when I full throttle and then I let off it makes a loud chattering noise. Can you help me? Don't know what it is

I have a magnet that it's timing position is on the 12 o'clock position but cant find any information on youtube about it.

PLEASE DO A REVIEW ON THE BBR F ZERO

Does this engine work with a Schwinn Trailway Hybrid 700c/28'?

Hey hover love the vids. I got the fat belly pipe (mz65) clone and I was wondering how it compares to your wc80 pipe?

My bike does that but at high speed and full throttle, what should I do

Hiland Coolley is a great steel frame choice.

Can you please do a video on the "110"cc ebay motor kits?

Your on the right track but I would try fixing carb, spark etc and do timing last. Biggest issue is exhaust at open throttle it doesn't creat back pressure as it should so will never be perfect. Check engine squish with some plasticine in between piston and head. Squish between .7 to .9 will work anything more and will need race fuel.

LA hover. One my piston rings snapped and all hell came to my engine so what happend is i replace my ring everything was normal until CERCK attop speed it died started it up fine 5 minutes later it tootally lost compression i check inside 2 mm craters on my piston and right below the intake port not as bad 0.5 mm can i run the block still?

How did you mount the gas tank on this Kent 7 speed 26 inch pos bike ? Took mine back cause I couldn't mount mine .

Recommended 11 gauge spokes

Pero cuanto levanta? Velocidad máxima? Buen video 👌

This might be the most useful gas bike video I've seen on youtube. But in my experience, 4 stroking can be tuned out w float height (mostly just full throttle, and even when properly jetted) More importantly needle profile (low to mid throttle).

i would cut filing and work on my magneto i have a tuning thats maybe would work a german mechanic tolds me this ignition time is not late enough its to early but near at high performance i ask him a stock ones can be tuned with a magneto???? and he yes look at this and this i understand what he means but its not Neodym magnets crazy i do its not expensive replacement part

I had a VW with a cylinder head guage, 350 was in the middle and 600 was over heated so your fine, I think my bug with a fan ran 280 most of the time

How would one tell if one needs to adjust the ignition timing?

Where did you get that intake manifold and exhaust?

Thanks of all the info. Just got the phatom 85 delivered. What quality bike you recommend for that engine ?

Yesterday I hopped on my bike with the phantom 85 to continue breaking it in and no power haven’t changed a thing from stock. Motor rips I just have no clue why mine doesn’t. Takes half throttle to barely get you moving on flat ground

I can verify it will break Walmart bicycles, most of the damage to the back tire spokes hub and axel bolt. Two tips to slow or even stop that from happening is don't use hub breaks or just no breaks on the back tire, and look into the upgrade hub mounted sprocket for the motor side of the bike.

I was wondering if you can give me some more information on that I've watched the video now like you said it's okay for someone who wants to just punch the gas all the time but there's times I want to just cruise it goes from two stroking to four stroking.

Where is the best place to buy a phantom 85

You should check out CDH frames

You should try to fabricate your own muffler, that would make for some hectic content

Speaking from experience (currently working on it) go over those BBR kits well. I just dropped the wheels off at a local bike shop. Not true & hubs no where close to centered. They're a solid start but not ready to go outta the box.

Dude that gurgle or what ever sound, that is what mine does when i go above half throttle, and everytime it makes that sound, it would actually slow me down , then would come out of it, when i plyed with the throttle. im not sure what my problem, is, im still riding it like it is tho. lol Thanks for another good video man.

Hey bud I have a question for you if you don't mind answering. I bought a JRL half moon exhaust for my 100cc non branded motor, is it any good that you know of? The original exhaust that came with my engine got broken by me loosening the cap bolt to remove the cap and check the inside of it and to add loctite on the nut. So this is why I had to get a new exhaust and the JRL 40mm half moon exhaust was only 20 bucks so I went with it over the stock exhaust. Also I would like to add that I got a high performance 100cc motor kit that resembles the YD 100 and all the parts I have purchased and changed have been for the YD 100 and they fit to a T . I have a 50mm piston, 8mm studs, and a 1 piece top end with 40mm exhaust bolt on and intake. That's why I think it's a YD 100 unbranded, same specs. It also has a ton of torque and speed.

Would you recommend the phantom85 or yd100?. Im in the market for a new motor

How do you like the phamtom 85? Is it comparable the yd100?

Will the phantom exhaust bolt on to a stock china girl motor if yes is it worth buying the exhaust for a stock china motor any gains of power low down on stock nt carb but high comp head would be nice to see a side by side stock with phantom exhaust and stock only high comp head phantom exhaust see the difference between them

You ever get around to the rebuild of roketa?

what jet are you using

would it be feasible to put something in the gap in the woodruff key so that the magnet wont rotate out of timing?

Hey La where do I get 49 cc sticker for my engine

Where can I buy this motor package?

My experience with a bike kit like this is that there are scant quality parts that you can buy for them. I've yet to find a decent coil for mine that gives a strong spark and I've even tried switching the magneto too and I can't figure out which part is the problem if not both of them. The bike only worked for the first 2 months I used it. I just bought a new carb too as well as the coil and hopefully that will fix the problem of the bike not being able to run unless I'm going down hill or have built up lots of speed befire hitting a hill. You can't trust Amazon sellers or eBay either. There are so many garbage listing that it's near impossible to find anything decent. I've also learned that these bikes need constant maintenance in order to function. By constant I mean be prepared to clean and rebuild the carb every couple months and expect the coil to need replacing every couple months too. And expect to have to buy multiple substandard or non working replacement parts, also never expect that they will come with the correct sparkplug, ever as they won't. and dont think that buy8ng the more expensive ones will be better they aren't and will be the same as the cheap ones and same w8th the red so called Racing ones they are just red and not better at all. And because the wires all have spade terminals you will have to put new spade terminals back on the wires to get a refund. I've never seen wiring that uses them on the kits but the replacements all have them. And the laminations on the magneto are usually horrendous and are normally bent or loose. They are also made from the worst grade of steel ever and are thick. So don't expect a decent spark. It's a dice roll to get lucky and relieve good parts and are rare. Why this is the case is that there's obviously only one or two maker of these kits and the one that makes the crappy ones has 95% of the listings that exist. I'd be glad to pay 400 for a quality one but due to the 400 priced ones being the same ones as the 179 priced kits you are wasting your money spending the extra. If anyone knows of a quality source let me know.

I put my engine in a bike from a second hand sports center and it’s been more than good

Indeed help please contact me asap it about my phantom85 I think my timing is wrong the pull start messed it up

Hover cheers ,i got my gas frame i will post soon im running my 100cc anbull no one has posted one it has a nice kick also .stay safe riders

What's in the cup holder

My engine has excessive 4 stroking but it'll run just fine so I'm almost sure this is my problem but this honestly intimidates me and I'm not sure why lol

I just got one of these engines, haven't even been able to look at it as I haven't been home... I would love to know how removing one of the gaskets affect things on this engine.

Hey there fellow motorized bike enthusiasts. Just racking my brain over this little over half throttle the engine just almost completely falls on its face. And I had just installed a new mz65 expansion chamber exhaust pipe clone. And a CNC high compression head. Right off the bat starts right up idle's great. But While I'm riding and start to give some throttle the rpm's are pretty high. But like I was saying little past half throttle it just starts breaking up . does anyone know what the problem is?

Sooo, going back to what you said about putting the magnet in -backwards- and still having spark.... Where would this spark be? Would it be the same distance from TDC, but opposite, or would it be 180 degrees out? Asking for 'Academic' reasons....

L.A., l built my last bike with a Kent frame, the Phantom 85 has not over powered the frame. I get 55mph out of it. Just make sure that you have front suspension. Bikes By Bill.

I have a walmart bike with a hd wheel from grubee would you trust that? or would the 85 eat the frame

I need one of these bikes I can't make this bike ride on my regular bike anymore I get to winded

Is squishgap the distance between the center of the spark plug and the end of the bent piece?

if you stick a small drop of grease in the crankshaft before you install the key it wont get pulled by the magnet

You're gonna like that faker frame man, they're real light and strong. Can't wait to see both the motor and frame done

I love the idea of those gas bike frames, not that I can get my hands on one anyway, but I'm nervous about aluminium frames. I've not had great experiences with aluminium. My Mk4 (green bike) ended up chewing out the rear wheel dropouts. I took the grinder to to smooth it out and it happened yet again so I retired the bike

to hold your shaft take the plug out and feed a cotton rope into the cylinder leave a handle on the outside then bring up to tdc. rope will lock the cylinder.

The girth of your exhaust pipe is very intimidating sir 😅

Random question does it really matter which way the piston arrow is facing

I had enthusiast when was younger, but my doctor gave me a shot & it cleared right up. I just don't have enough dimes to get a 85 yet. I'm workin' on it. We had a hurricane & it's a bitch to ride because of trees & stuff.

I don't know if there really is anything on the market that stronger than a steel frame Kent or Cranbrook. The Phatmoto frame is reinforced, but even that's made out of aluminum. I would think the best thing to do is to take steel frame Walmart bike and bring it to a welder to add support.

Hover I know u have issues with the chain tensioners so I figured a way to make em pull away from the engines.ok u kn how we all put the bottom of chains on em instead of doing it that way take the top part of chains a run em under the pulleys and set it to the highest it can go and they will never Loosen up again

Lol wheelie story. Been there done that. Day 2 testing ebike build. It did a wheelie. I didn’t even have rear brakes hooked up at the time.

Was it Gas BIKE or PIRATE CYCLE that was selling after market performance magnets??? I still have the original one I bought how many years ago it amplifies the spark and retards the timing. When I use that magnet with my jetted carbs the bikes really haul ass for me. I want to find them magnets I have 2 builds right now that are really disappointing to me. I have ZEDA80 that just does not build the power like it should. I am gonna blame it on a bad pickup magnet.

Did you ever find out What the double squish gaskets were about? Because mine also came with two also. Thank you for the videos and for always awning me back. Great reviews and content

I like your idea with the frame though that's a good choice

Would you ever consider converting your yd100 to a phantom 85 ?

See things like this is part of a hobby not having to fix part that blow up after 1 -6 rides.a hobby is where u do upgrades when u want not cuz a brand new engine blows up lol.. for this I guess I melt in the sun blaah hahahah 😉👍👍

From Ken himself: The phantom 85 There is a lot to talk about. As many of you have already seen several failures already. In this post I'll show what I have found that is wrong with the engine that is on my work bench and in my opinion what is needed to fix some of the issues to hopefully make this engine usable. Squish 1.8mm :( Soft bushing in the rod :( Intake port to wide it will snag the ring :( Crank not balanced properly :( Port timing is fair but room for improvement :) With a simple piston and rod change these issues can be fixed. With a piston and rod change it has resolved , Ring snag. Squish . A port timing is nice. Also can be used as reed or nonreed setup.