50cc Rotary Valve Nitro Moped Engine, Ignition and Variator | 2 Stroke Tuning

[@ronalddaub3789]

I grew up in the 70s around some 2-stroke engineers and learned a lot and you remind me of them.

[@Testfortest142]

I finally have my own 2 stroke piaggio bike, installed a low rpm 70cc kit on it and already fell in love with it. Now I discovered your channel and feel like doing some diy tuning ;P. Thanks mate. Cheers!

[@2STROKESTUFFING]

+Ryzen Awesome! Glad I could inspire you!

[@sillen3000]

The esthetics on your latest videos are on point. And so are the work on the engine! 10/10 👏🏼

[@2STROKESTUFFING]

+L1NDSTROM Thanks! Sound turned out a bit low tho.

[@gravelyetigravelyeti4284]

Gday alex i was washing my beewee 100 barrell under the kitchen sink after some minor port adjustments and realized how good it is to see water flow through the inlet tranfer ports into the cylinder. Its a great visual representation of how critical the angles and flow directions are.

[@2STROKESTUFFING]

+gravelyeti gravelyeti Yeah, that's how I do it too! Take your results with a grain of salt though, constant flow of water is quite different to pulsating flow of somewhat homogeneous air/fuel mix.

[@JLEllington]

Videos are getting better and better man, keep up the good work.

[@2STROKESTUFFING]

+Luke Ellington Thanks!

[@pepelefrog9319]

Can't wait, man; This one will hold together, I have faith! You put all of this time into having the utmost precision, CAD models, powerpulse calculations, ignition maps....but no wideband! At least you can run Nitrometh rich / fat as all hell, and make more power while doing so. I think it actually doesn't matter how rich because it technically has it's own oxygen to burn (or...detonate, really). I've heard 3:1, up to 0.5:1. So you have that going for you. One thing I wanted you to know if you didn't already, and this came from an old Top Fuel racer I know: Apparently high specific output engines, don't like to be ran cold on Nitrometh. As you know, the fuel itself sucks a shitload of heat out the block, and assuming you are at the correct AFRs, it can hydrolock if there isn't enough heat from start. You sound like you are from...Finland, Denmark, maybe Sweden, I'm not sure; but I bet it's cold. Food for thought, best of luck man. -Pepe

[@Realryancurry]

Love the song on this episode (if you're dumb you gotta be tough ), and enjoy watching the progression of things your working on!

[@2STROKESTUFFING]

+Ryan Curry Thanks! Didn't know it was that song!

[@upsidedowndog1256]

I can't wait to hear it run.

[@joski9030]

Hipster with engineering skills.

[@Hollaendaren]

Cool to see the nut and bushing in place! Your new camera makes them look a lot nicer too! :) Looking forward to see it run!

[@2STROKESTUFFING]

+Hollaendaren Thanks! Me too!

[@merlindaley758]

love the new style of filming !!

[@2STROKESTUFFING]

+Merlin Daley Thanks! Having a dslr camera really opened up the possibilities! Too bad I messed up the audio.

[@siggenilsson5177]

Looking forward to see it run! Greetings from Sweden

[@2STROKESTUFFING]

+Sigge Nilsson Me too!

[@hopsgarage5513]

Great work as usual

[@2STROKESTUFFING]

+Ben Hop Thanks!

[@MrDjcamo29]

Can’t wait to hear your new kitty roar

[@markhanson755]

You are awesome, spread the knowledge

[@2STROKESTUFFING]

+Mark Hanson Thanks!

[@chri7907]

Lækker belysning! Godt arbejde

[@2STROKESTUFFING]

+IRL DriftKing Takker!

[@ronalddaub3789]

I appreciate your videos

[@2STROKESTUFFING]

Thank you very much!

[@ItsMe-dj8zd]

Now I’m hungry... Loving the new camera.

[@2STROKESTUFFING]

+It's Me It's great! Never thought it would make such a difference.

[@DerKrawallkeks]

Looks at the candles in the end, they almost don't move!

[@2STROKESTUFFING]

+DerKrawallkeks I noticed that too, strange, they are real.

[@DerKrawallkeks]

yep. That was a beautiful ending!:) I wouldn't mind little extra scenes like this more often

[@erikdejong2091]

the vario cooling fin is crooked he wobbles, and it is better to sand the vario and the cooling fin to make it rough in any case and you can also do this with the v-belt , it gives you more power

[@2STROKESTUFFING]

+erik de jong It's not actually bent, just uneven thickness - ground off the fins by hand.

[@erikdejong2091]

OK, I thought I saw that he was crooked, but you have to try to sand you vario ,you will see that makes a difference

[@2STROKESTUFFING]

+erik de jong I'll try that!

[@jellecoder6400]

This makes me want to get a lathe and make one for my Peugeot.

[@andrewpeter6741]

I love 2 stroke!

[@2STROKESTUFFING]

+Moisean Petru Me too!

[@jvsyoutube3298]

haha, that can be read in two ways :)

[@davespooney8472]

Home built 2stroke engines, whisky and steak..... if ww3 ever breaks out I'm flying over to your place. Let the rest of the world get on with it. Lol

[@2STROKESTUFFING]

+Dave Spooney Sounds like a plan!

[@hoost3056]

France probably wouldn't be a bad deal right now....time to renew the passport✈🔧🇫🇷

[@davespooney8472]

DeviouS - you have Mexico! Only problem is, Trumps building a wall to keep you all in! Haha joking

[@2STROKESTUFFING]

+Dave Spooney 😂

[@jianoconnor8414]

In reality one can simply drive into Mexico. Great food, lovely people, inexpensive, great place. Many Americans live there & have holiday homes. Met them and been in their home.

[@benspeedschannel888]

Candlelit dinner for one in the garage, can't fault it. Love the choice of music! As used by Welsh hero "Dai Ling Ping" do a search 😂😂😂

[@2STROKESTUFFING]

+Benspeed's Channel Thanks! I'll google it.

[@joshuaharrison9331]

You're so bromantic Allex.

[@2STROKESTUFFING]

+Joshua Harrison 😂

[@tylersong4103]

You should build one of these to sell or raffle I know I would love to mount one of these to a actual gas bike frame

[@ajwasp3642]

You loctite the bushing, and the cheek, to the crank? This is the first time I have heard of this.

[@2STROKESTUFFING]

+ajwasp Usually it's locked by splines, but as tgis is tge wrong variator thy can't be used.

[@ExV1rUS]

I've had my fair share with mopeds / scooters, But we only putted like 70cc aluminium cylinders on our Minarelli horizontal blocks and of course change cranks that stuff, But your stuff is fascinating man! I watched your Aprilia SR50 ratrod scooter video, and funny enough I still own my Aprilia SR 2000 (the pre comer of that) It has a Minarelli Horizontal with just a 50cc (since were only allowed 49.9cc due to laws) with a Stage 6 exhaust overrange and a polini speed control variateur and it hooks up pretty good :) top speed of around 80 which is about 30 over whats allowed :P

[@2STROKESTUFFING]

+Cap'N Cook Thanks! 50cc only in Norway too.

[@ExV1rUS]

I used to run a Polini Gisha which is a 50cc "race" cylinder, its still cast iron so really durable and it went around 90 km/h with around 9 horsepower :) If you ever can get one for cheap i'd def recommend it ^^

[@increasedelevation3776]

Is that Lagavulin in the back ground? Please just mention what whisky you are drinking in the vid somewhere for the whisky fans :)

[@2STROKESTUFFING]

+Increased Elevation Lagavulin 16. I'll do that!

[@skidoorenegade77]

Smart d ombygde skyvelæret.😊 liker at du mekker eget verktøy.

[@KevinTodd]

Good job

[@2STROKESTUFFING]

+Kevin Todd Thanks!

[@derknobit2616]

Thanks for some motivation. Just cut up my new reed valve setup to make it work with the 24mm carb. Almost ready to put the stroker crank in the bicycle but need barring any name brands you recommend?

[@2STROKESTUFFING]

+derk nobit Cool! I can recommend SKF, but any of the name brands are good.

[@derknobit2616]

2STROKE STUFFING Thank you!

[@abutausi1461]

thanks for sharing..u awesome....

[@2STROKESTUFFING]

+Abu Tausi Thanks man!

[@j.patino8148]

My idol , the fucking master of mecanics 🤔☝️👍💪💪💪

[@2STROKESTUFFING]

Well thank you!

[@MrLurch26]

Excellent channel, but bring back the original intro, it was awesome.

[@2STROKESTUFFING]

+lurch Thanks! It will be back, maybe not in every video.

[@zackbfortiscuejr4575]

Wow!!! 20 hp' with a 50cc - so cool" I wonder how much mpg' it can get for such a small motor & realy good added power!.

[@2STROKESTUFFING]

Thanks!

[@massimilianozanoni767]

More info about that ignition pleeese!!! Can you share me the website about it??

[@andytinline3268]

Can JB Weld used to fix a scored piston skirt ?

[@2STROKESTUFFING]

+Andy Tinline I think it'll wear away pretty fast.

[@andytinline3268]

Will itg wear and brake off or just wear our ? The engine was showing 110 psi with the scored rings and 3 of them were stuck. Its a V4 85hp johnson outboard. I owe you a great big Cheers for your video. When i first started i knew very little about two stroke tuning. Because your videos are real trial and error every one feels involved

[@2STROKESTUFFING]

+Andy Tinline Thanks man! I wouldn't do it, could break off and cause trouble.

[@happy_dutchman]

I would pay top dollar for this. If you ever start producing them sign me up

[@NowAndyPlays]

I finally replaced my carburetor needle, but now i have to face a problem the engine is misfiring at high rpm.

[@Rideaholic069]

Alex where are the videos ??? It's been a week since you have uploaded.

[@2STROKESTUFFING]

+Mark Durham Coming today! Been a busy week with a baby that won't sleep at night...

[@Joker1911able9Gaming]

What do you think about trying to supercharge or turbo a small two stroke engine,i saw a few videos of people doing it,theres also a turbocharged minarelli am6 50cc holding a world record of fastest 50cc engine.

[@2STROKESTUFFING]

+Joker1911able9 It would be very interesting, definitely going to try it!

[@hugoantonsson6158]

I saw the Biltemas hylsor

[@maxicordier6348]

Hi, pretty awesome assembly! What is the CDI that you are using? i would like to purchase one

[@2STROKESTUFFING]

Thanks! Powerspark, www.power-spark.de/index_en.html

[@maxicordier6348]

Thanks! Rally usefull, i am currently upgrading my 76cc moped, its known like Pumita Seventy here in Argentina (Franco Morini Engine, direct clutch, no variators or gearbox), here is in its last times before it explodes kzbin.info/www/bejne/o5_YgKmjpb-Cl6M, Regards!

[@aleks-ow6te]

How are you set this ignition, yours TDC is on 50.4mm and you set piston on 63.8mm? I have problems whit seting my ignition in instructions say to set piston betwen 1.8mm to 4mm. Please help

[@2STROKESTUFFING]

+aleks železnikar It's programmable, the 65° BTDC is just to "sync" the ignition with the crank, actual ignition timing is programed in the unit. Does your ignition have a curve or is it static?

[@aleks-ow6te]

2STROKE STUFFING I have a HPI ignition it have cdi

[@HMXOnDex]

Digg video xD 👌🏻

[@2STROKESTUFFING]

+HMX Takk!

[@cykelfreak]

Vilken skillnad i ljussättning(arbetslampor strålkastare vita skivor osv i bakgrunden ), fast jag tror jag gillar "stöket" bättre ;) Går det att höja ljudet? I dina gamla filmer fick man sänka men här ligger jag på max o har svårt o höra om det inte är helt tyst runtomkring.

[@2STROKESTUFFING]

+Andreas Dandanell Forsøker å være pro😁 Bedre lyd neste gang!

[@cykelfreak]

2STROKE STUFFING kul o se utvecklingen både på hojen och videorna. (föresten kommer det en film om snowboard grejerna?)

[@2STROKESTUFFING]

+Andreas Dandanell 👍 Prøve å huske det i neste video!

[@AuMechanic]

What was the con rod length and stroke on that engine ?

[@2STROKESTUFFING]

+AuMechanic 75mm rod, 39.1mm stroke. Could benefit from a longer rod.

[@AuMechanic]

Thanks, I was just messing around with my engine sim software I've been working on. Just wanted to dial up the 65 degree and compare the value for a sanity check on my formula.. I got 13.411 mm at 65

[@2STROKESTUFFING]

+AuMechanic Spot on!

[@jonnyrox116]

2Strokes, beef and booze, what more can you ask for? Why the belt drive... no direct hook up ei: chain...because no clutch? Curious minds wanna know! Thanks my friend, Mahalo.

[@2STROKESTUFFING]

+Jon Rothenbusch Exactly. Because CVT.

[@marioraja4229]

do you mix nitro with oil? if so what ratio and what oil? and do you use 30% nitromathane fuel or higher? what happends if you use say 60% nitromethane fuel? will you see power gains?

[@2STROKESTUFFING]

+Mario Raja RC fuel comes premixed with oil. I'm running 20%, higher percentage will definitely cause a powergain!

[@paansukarjo90]

hey man, the video quality using dslr is amazing, but you need to calibrate the sound a little bit. youd voice is a little bit soft and the music is louder. I hope my commment will help you to make a better video! :)

[@2STROKESTUFFING]

+Mohammad Farhan Sukarjo Thanks! You're absolutely right, I'm taking action!

[@thatbuelldude189]

Would balancing a 4stroke crank help with proformance Like the crank out of my predator 212cc?

[@bierbaum4284]

Ford For Life, of course!

[@2STROKESTUFFING]

+Ford For Life If it has the wrong balance factor for your application, yes.

[@2STROKESTUFFING]

+bier baum beat me to it...

[@thatbuelldude189]

2STROKE STUFFING I'm just trying to make it balanced so it will rev a bit higher and smoother

[@brzivoz4323]

Hi bro, how can I calculate the exhaust for my kart ? Do you have programs or something?

[@2STROKESTUFFING]

+Grasshopper I use engmod2t, works great!

[@brzivoz4323]

Is it free?

[@2STROKESTUFFING]

+Grasshopper No, 400$, but well worth it! It's a two stroke engine simulator.

[@brzivoz4323]

Deeeem, 400$, lmao, it's too much, can you calculate for me xD

[@2STROKESTUFFING]

+Grasshopper It's not that simple... I'd need every dimension of everything throughout your whole engine. Google "fos pipe calculator", free and will produce a good starting point.

[@25bg]

Bravo

[@Jeekinz]

Why not use a degree wheel?

[@2STROKESTUFFING]

+Jeekinz No practical way of mounting it on this engine.

[@joramotorsportteam3277]

Where you bye this ignition?

[@2STROKESTUFFING]

+JORA MOTORSPORT TEAM www.power-spark.de/index_en.html

[@gislemark79]

You are using the wrong type of loctite on the axels. Use Loctite 638.

[@2STROKESTUFFING]

+gislemark79 Thanks for the tip. This one seems to work fine too tho.

[@yoannclement8266]

did you blowtorch the steak?

[@2STROKESTUFFING]

+UKMoped yep. I thought it would just create a thin crust on the outside and leave the rest raw but it actually turned out too well done in my opinion.

[@yoannclement8266]

look into..josper oven. with your skills you can make one. the best thing ever. :)

[@2STROKESTUFFING]

+UKMoped Thanks, I'll check that out!

[@shug831]

Reindeer stake?? Sound a bit low?

[@2STROKESTUFFING]

+Hugh Cameron Beef tenderloin and Red Jalapeños flushed down with a glas of Lagavulin 16. Forgot to turn up the master before I rendered it...

[@tylerraines3451]

Hi i seen your video about roller weights , i need some help , i have 5 gram rollers now my parts list are below and it is slow until it reaches 8500 to 1000 rpm as you may know the stage 6 pro rep exhaust is a high revving one and i need the pull of to be better as when i full throttle it goes to 6000 rpm and hangs for a bit until it gets to 8500 rom then shoots up from there to 1000 rpm, im lost i need your help please thanks , i think your videos are awesome and helpful to keep it up Has these mods Stage 6 pro rep exhaust Stage 6 R/T drive belt Stage 6 5 gram rollers Stage 6 foam air filter insert Polini hi speed variator Polini torque spring Polini clutch springs 68 Main jet

[@2STROKESTUFFING]

+MrRainesFTW Strange, sounds very uneven. How long have you run this setup, could be uneven wear causing it.

[@tylerraines3451]

2STROKE STUFFING ive had the setup since november all parts are brand new and the rollers looked fine inhad to shim the variator so it would make it take of better to

[@jdmjedi777]

Great work Alex! Can't wait to see it on the dyno. I just finished building my stand up gas scooter project if you don't mind checking it out on my channel that would be awesome!! It not nearly as nice of a build as yours but it's still fun

[@2STROKESTUFFING]

+jdmjedi777 Thanks! I'll check it out!

[@jdmjedi777]

2STROKE STUFFING thanks MAN! You are honestly one of my favorite youtubers right now and always seem to respond to my comments. That's really cool.

[@2STROKESTUFFING]

+jdmjedi777 😀👍

[@leslieaustin151]

Sound is set very low..

[@2STROKESTUFFING]

+Leslie Austin Ah crap... Thought I got it right this time...