Phantom 85 Motorized Bicycle - [Mods & Fixes] - 42MPH with Half Throttle!

[@gabrielcarvalhogcr]

if you polish the exhaut duct it will increase top speed and performance and also get a foam air filter like the uni filter, its because of that the mixture fells rich but in reality it doesnt get enouf air thru

[@myshut9937]

After 3 months, I'd guess that the replacement parts aren't coming! I got lucky and picked up a returned engine for $35 on Ebay with a good cylinder. Did the mod with an MS380 piston and the 2 bushings, 10mm wrist-pin and cage-needle bearing. Added an KX85 pipe and it screams! Hope it holds up better than the factory one did!

[@omargdottin]

Wich bushing dimensions did you used??

[@myshut9937]

@@omargdottin Sorry, I just saw your post. I used 10x12x8mm long, shortened the 10mm pin and used needle bearing.

[@Allyoucaneatmeat]

Did the guy mentioned in this video pass away? I ordered this about 5 weeks ago and I’m still waiting on it. Should I just give up?

[@kennysullivan1348]

i am gonna get this motor beacause of you make it look fun

[@E3motionz]

Is the ngk spark you mention meant to be slightly longer? Went down the shop today to pick one up but it is slightly longer than the original one

[@Op1zilla]

I still want bearings in there

[@larryshaver3568]

me too, they make the engine much quieter

[@mikerammelt2420]

If it's fitted properly, yes and being a two stroke 😁

[@bossjoe7784]

Where can I buy a new piston and cylinder head for the 85cc phantom

[@scotthansford3657]

oh ryan’s still makin stuff?? awesome! i got his st3 clutch a while back and i think this motor is the perfect candidate for it

[@jeffheald8228]

That my biggest issue with my phantom, the stock clutch just can't handle it

[@jamesfulerten8494]

The problem of your motor "4 stroking" may be the reed in the reed valve manifold. If the reed is to stiff it can cause the incoming air not to mix properly with the fuel as it moves over the reeds. Less stiff reeds could be the fix there.

[@yougod7253]

You have to drill tiny holes in the bushing to allow oil to penetrate to the pin.

[@mikerammelt2420]

Winner. Not only that the little end will spin round and move. That's bad. And the sides of the bush need machining. No wonder it still rattles

[@sherteff2797]

​@@mikerammelt2420so thats good to drill the?

[@rickhart6049]

What size sprocket 36 or 44 or 48

[@Matthew-wj8cm]

So how many tanks are you doing for a break in? I want the Phantom 85 so bad, but I'm in Central Europe so... can't get one. I'm getting another motor soon, idk which one yet

[@MJTechChannel]

Usually 2

[@mikecyanide7492]

I know its an old vid but how did u make the exhaust? I have the chambers just need advise and why the different reed?

[@motorizedbicyclerider5296]

We'll done 🚲💨💨💨💨 love the sound of it at the end of the video nice speed the exhaust and how you put the two extra piece to hold it down 👍🔥💨💨💨🤙💯

[@E3motionz]

Just wondering if you had a link to the carburetor you use in this video cheers

[@noahtechlin177]

Where did u get ur whole air fuel mixture system?

[@whatsyurprob158]

So, has the maker done anything about that bushing? I'm close to pulling the trigger on this kit, my first build, but I've seen quite a few complaints about damaged or missing parts. I want SPEED/POWER/QUALITY, and, I hear this particular motor is the one to buy >>>>>> for a Beach Cruiser 😎

[@MJTechChannel]

@@whatsyurprob158 Yes it has been fixed. They now have the V3 out

[@kjsmolik]

Gwt a temp guage to watch your temps to help with jetting

[@MJTechChannel]

I do that all the time. Cylinder on the side and head reads 282F. Exhaust header reads 370-389F

[@tomrockhill8634]

Great video. You're actually explaining the issue.

[@MJTechChannel]

Thanks

[@mikerammelt2420]

Did you put any oil on the small end when you put it back together. The sides of the bush should be level with the sides of the rod Little end.

[@guerrerosaurio]

Will it fit in a Schwinn trailway hybrid frame?

[@tomthomas9910]

Cool video" on timing, WPB' born at St Mary's & surf the pump house, there was a place off beeline hwy & military trail going west where we rode dirt bikes 4x4 & shot rifles out of city limits back in the day " is that place still there by chance,

[@Allyoucaneatmeat]

Did the guy mentioned in this video pass away? I ordered this about 5 weeks ago and I’m still waiting on it. Should I just give up?

[@mikemiller3303]

I was told that to that the bottom half is from a yd100 I got my phantom in the other day and I noticed that when I was installing the wrest pin and bearing that on my yd100 it's 10mm but on my phantom it's 12mm so if there both yd100 bottom half why is that different?

[@thebonafidemechanic3516]

try old small outboard marine engines i will be trying the small evinrude roller bearing for the wrist pin

[@jerrywells4070]

I found the LD 100cc to have a zmn100 connecting rod with a 12 mm wrist pin. And it comes with bearings not bushings.Chain saw parts work best . Good luck and Ride Safe

[@JohnSmith-sk8hn]

Ya,I also wondered why he was running a bushing and not needle bearings.

[@nickolasedmunds]

How long did that bearing last?

[@bto1997]

I got an iron 66/80 iron sleve with the 49mm piston it ran sluggish changed the carb and been playing hell to get it tuned any thought if u have email to get ur info I live in Tampa

[@jerrywillis5585]

What octane and oil mix? It seems the motor would get hot without a cooling fan that's typical on chainsaw engines.

[@willardbuchanan9122]

If you're phantom 85 is still running it just released a needle bearing

[@roberthansen1210]

It's very true, ripping power. I was @ 1/4 throttle doing 23 mph. Sometimes it frightens me. Ya feel like you just got off a roller coaster a big one.

[@larryshaver3568]

where did you get the tape that is on the narrow part of the exhaust? it must be to shield you from the heat

[@joneserupinsmoke9161]

How is it been running I have my 2nd ,2nd gen phantom coming the 1st one blew up all types of metal fragments were in the crank when I open it.but what oil mix u using for break in?

[@diydarkmatter]

man im glad someone finally showed a proper fix . not that i have a phantom nore would i buy one at this point . good job on that . how ever looking at your expansion chamber pipe . i have to ask the stock pipe that comes with the phantom is way bigger. did you mod the pipe to fit with no restriction? i ask cause in the video it looked like it was a bit small compared to the stock pipe .

[@joebrown967]

Hello I have a question the MS 460 piston is 1 mm taller than the factory phantom 85 person right?

[@joechipman8711]

How did you remove the old wrist pin sleeve?

[@MJTechChannel]

Just pushed it out!

[@chadbrooks3508]

Just just push hit one more speed crime

[@larryshaver3568]

i've been to West Palm Beach several times i wouldn't mind living there now

[@Westhelockpicker]

What carburetor is that?

[@robertmorse6262]

Where can I get the clutch for the 85 Phantom

[@AlexStalin-ph2do]

Where did you get the carburetor

[@jeremyclarkson6293]

Hi could you tell me with the 80cc piston bearings fit on the phantom 85 EDIT:yes they do :)

[@kennethlloydr.sentino934]

Is tgis the Version 2?

[@jarrodnielsen7547]

just ordered my phantom v3 they say your supposed to run it 20:1 during breakin period this seems very rich to me but ive heard a lot of people saying they run it 25:1 during breakin and then go down to 36:1 but they reccomend 25:1 after break in. Idk i dont know it all or anything but could this possibly be why some people are having problems with the wristpin bushing and piston rings? someone who knows something lmk cuz im not trying to blow mine up lol

[@Snake.br549]

Stihl chainsaw piston works with the needle bearing or you can get just a needle bearing now they come with it

[@soundqubedkiller5885]

Any ideas on how to get one unsezied?

[@MJTechChannel]

Take it apart and inspect

[@soundqubedkiller5885]

@@MJTechChannel rod is stuck on the downward stroke

[@joechipman8711]

Did you adjust the timing?

[@MJTechChannel]

The 4 stroking had to do with the fuel on this motor. No need to adjust the timing

[@motorizedbicyclenation53cu90]

What’s the rod length and stroke on a phantom?

[@SLAYJUCE]

is that not supposed to be a needle bearing??

[@getitrunningdunning5588]

I like the bike, keep it up sir. If you ever want to try out a 56 mm Stihl Frankenstein, I have one still up for sale on my website I believe :)

[@joechipman8711]

Did you reuse the wrist pin clips?

[@MJTechChannel]

No, I got new ones

[@chadbrooks3508]

Install them slowly but powerfuly acuret

[@ChrisSmith-yr5hg]

What kind of pipe did u use on that motor? I am wanting to upgrade mine but just don't know what to look for.

[@ChrisSmith-yr5hg]

Never mind u talking about the pipe lol

[@jlovee2211]

I have a 80cc with -Reed valve -windowed piston -mikuni carb 32mm -performance cdi n spark plug -power boost bottle - 36t back sprocket -expansion chamber exhaust Do you think I can hit at least 40mph? im asking because I’ve only built it, i havent turned it on yet

[@topdog3407]

what was your top speed?

[@jlovee2211]

@@topdog3407 62mph

[@alnardoperez-w6y]

Maybe the 3 in 1 you used when assembled affected the bearings

[@nathanhudson2258]

I think your 4 stroking problem is got to do with your exaust were the pipe bends down it seams too restrictive

[@TheBigred1781]

That's awesome. Great video. Please do me a favor & dress for the slide, not for the ride.

[@RedwonMactamhais]

Why not just slightly chamfer the ports in the head?

[@juanhigareda3810]

I have to do that I might as silicone on the gasket putting it back together

[@jered2177]

Want to see top speed after break in

[@MJTechChannel]

It’s coming soon

[@bigcconservativeguy2534]

So much for the Giant Killer!

[@simonlenart6938]

I bought the V3 version and it has bearings instead of a bushing

[@ChillyWhitlock-iw2tm]

Bad mother for break on ran well probly goona get a 60mhr mother when broke in all the way .good job can I have it please

[@robertmorse6262]

Yeah mine did blow up and I’ve been waiting over a month and still haven’t got it back

[@ArthronOfFir3]

welpz it's time to get the Chinarelli vs phantom 85

[@kjsmolik]

Would be a good race but we don't k ow what these 85's will do yet.

[@ArthronOfFir3]

@@kjsmolik yeah, but I'm also having a special order coming in, Iron sleeved Chinarelli is happening but it's for something I'm not sure if i can do it myself all the way without issues, and probably my longest trip, pompano beach to key west and back (400 miles). if you can relay anything to me to make sure i don't have issues, I'll be greatly relieved for I'm already preparing for the worse.

[@kjsmolik]

@@ArthronOfFir3 I would say inner tubes, extra chain, extra clutch parts. Head gaskets. Spark plug. Definitely extra cdi, magneto and magnet. Clutch cable.

[@ArthronOfFir3]

@@kjsmolik i think you seen my build on the FB group (zeda mafia) but didn't show the whole build due to what I'm going to be doing with it and recently been working on this to be themed to Iron Maiden (they forced my hand to make a themed build(i have list of things that forces me to theme builds i do as current, maiden was on it and hopef it never happened). currently using mags but going to build my own wheels now that have access to good tools. you forgot tools and probably loads of cash.

[@MJTechChannel]

@@ArthronOfFir3 You’re in Pompano and I am in West Palm Beach. We should meet!

[@dustinh4175]

Why wouldnt you just use a needle bearing?

[@larryshaver3568]

it's so quiet even at 37mph

[@maggimentis1428]

Well done man. Subbed. Seeing as this is actual US-rated 85cc. Would you reccomend this over say the BT100 or the YD100 from Zedda?? (torque wise especially). Thanks

[@connorssmallengines6663]

Yes it has way more torque

[@motorizedbicyclenation53cu90]

Well I’d say if ya ant a crank bearing and bushing failure and ring snags go form the phantom otherwise build a ms440 or 380

[@jeffheald8228]

I love this far more than my yd100

[@ronaldmuise2343]

Is that mph?

[@petersymons7817]

Thank u

[@mikerammelt2420]

U'mm that small end bush is no good. It needs to be "pressed" in (interference fit) otherwise is will spin in the small end and cut the oil off to the little end. That's bad. Those oil holes need a drill bit through them with a nice radius to catch the oil. That old bush has come loose and moved around. Being with a split is correct. Every little end bush I pressed in and machined was steel back brass or copper. Go to an engine shop and ask to see a small end bush out of a diesel and that's what you'll see, but Big. That little end failed due to lack of lubrication either because it came loose as is evident by those solid brass Bushes. Your going to have to knurl those and Loctite them. Dodgy as. I'd check the little end with a telescopic ball gauge. Because if that guy made those bushes to size they shouldn't fall through the hole. What's the OD of those. Ones wrong. Don't run it to lean. Two strokes are supposed to smoke. Back to your vid

[@sabledg7380]

@Mike Rammelt, was going to say the same thing, bronze bearings needs to be pressed in or it will spin and damage the rod

[@scotthansford3657]

how to solve overheating issues w this motor?

[@MJTechChannel]

Probably running too lean or too much oil on your mixture

[@scotthansford3657]

@@MJTechChannel sweet thanks man! still in break in can’t wait til the bushings are back in stock, can u post a link to the mikuni carb u got?

[@glennspears839]

Copper bushing ? No. Its bronze. Your using a bushing....... I think a bearing has less friction.

[@mikerammelt2420]

Yeah and is not supposed to fall in to the Little end. Needs to be a pressed fit then machined to suit the pin.

[@BigBadMarketer]

Who sells modified or improved trouble free engines or bike kits? Let me know with links pls thx

[@kevinferrier5639]

I'm betting you have a top speed of 55 to 60mph

[@MJTechChannel]

Right on point!

[@Midwestpinstriper]

Prove it!

[@johnarsenault7046]

My motors have roller bearings that might not last

[@joechipman8711]

I meant bushing

[@geph13]

42mph... HALF THROTTLE????

[@robertkuschinsky2025]

Can you get a hold of me please. I got questions

[@powerjay699]

hy would anyone get this motor , it is defective from the box , lolo what a piece of crap ....the manufacturer should be sued

[@kapn4611]

I’ve had mine for a year, version two. It seems like they are not consistent

[@Chilife78]

120 main jet

[@MJTechChannel]

What carb?

[@LouisKrist-r2u]

No fuel filter for better fuel flow lol😂

[@loganwilson5457]

Don't waste your time, get up all the parts put them where they belong in the dumpster,

[@jerryb1234]

$22 for that?, watta rip-off!, smh

[@joels9183]

l

[@annebarrett3879]

[@tonydaley4168]

Could you tell me where I can get an expansion chamber for my phantom 85

[@vedabark8591]

Is yours still running? Stock?

[@tonydaley4168]

Yes