This Part Doubles Power in a Two Stroke!

T-shirts, hoodies, stickers etc
teespring.com/stores/2stroke-...
Support me on Patreon!
/ 2strokestuffing
Donate to 2STROKE STUFFING
www.paypal.com/cgi-bin/webscr...
or
www.paypal.me/2strokestuffing
Instagram
/ 2strokestuffing
facebook
/ 2strokestuffing
DIY Arduino dyno shield
ardyno.weebly.com
Twostrokerider
www.twostrokerider.se
Twostroke.se
www.twostroke.se
Treatland
www.treatland.tv
Emot Racing
www.emot.nl
Get Simpledyno here:
sites.google.com/site/simpled...

[@tinymotogarage]

5:56 - "finishing with a quick hand job" is why you are always so happy. Well done you!

[@buddyjames6064]

Bonus happy ending

[@jamiecurran3544]

Lol!😂

[@georgea6403]

Ahhhhhhhh

[@powerofone1645]

Two strokes and all good.

[@IFRYRCE]

There's nothing I look forward to every week as much as a new 2SS video.

[@UliMuliko]

asoftaaja is the best

[@2smokes]

yeppp same

[@Altprophet]

One of the highlights of my viewing every week for sure.

[@kytkinpommiracing]

Nii on

[@racingsmurffi4640]

​@@UliMulikopaitsi kerran kuus

[@MetroTubettaja]

Love the communication between you and asoftaaja. A real collab with Finland and Norway. Waiting for the IRL meet :D

[@uwu3130]

maybe someday 2 stroke stuffing will come to vauhtipäivät :)

[@ferrumignis]

Larger pulley on the crank means you are spinning the gearbox faster so increasing windage losses. A smaller rear sprocket (or larger front) is likely to yield better results.

[@2STROKESTUFFING]

👍😁Was just thinking about it!

[@joec-hd6dc]

@@2STROKESTUFFING Yes What he said is a exalent point 👍. jm2c 😉 P.S. Rear wheel rpm is required to achieve top speed and with only 50cc's tooth count on front and rear sprockets is a critical part of tuning. Probably going to need a box or two of sprockets for your testing. This was Captain Odvios's suggestion 😁..

[@TheGalifrey]

It shouldn't be significant as the gearbox itself already has a primary reduction. 1:1 with the crank should be the same as the base bike the original engine came from. A small amount of ATF in the gearbox over the usual oil might help with that.

[@bottomendbliss]

@@OneHappyCrazyPerson The engine that can is the KZbin channel. 39000 views in 21hrs, 200k subs.

[@ferrumignis]

@@OneHappyCrazyPerson _"And left the woods in "_ Sorry I don't understand what you mean, what "woods" are you referring to?

[@Jorporte]

I had to come to the comments and say how much I LOVE your background music during the montages! I never would’ve thought that what I wanted in my life was CNC machining montages with various Jazz music selections in the background! Bravo sir! Love your video style!

[@raymondo162]

i find the music frustrating........... i don't learn owt if'n yer man don't explain owt.

[@sensoryoverload673]

@@raymondo162 Try to stick to English so we can all understand you, please.

[@tonynewcombe9075]

Music doesn’t belong in a workplace. !. Health & Safety. Other than the music, interesting progress. 😊

[@atcmadness4351]

What? You mean you don't want to hear some rap music in the background? But, they have sooo much talent. I love hearing his music or nearly anything before 2000. What we have now just promotes the degradation of society...

[@deucedeuce1572]

lol

[@peteharland8328]

LOL....."a quick hand job" means something else to us in the UK! :) Great concept.

[@2STROKESTUFFING]

😁I know...

[@Pixelarter]

Indeed, quick hand job is a great concept.

[@Harry_Gersack]

damn I came here to say that😂

[@peteharland8328]

I'm just glad he edited it out.@@Harry_Gersack

[@Harry_Gersack]

@@peteharland8328 huh? I don't get it 😂

[@mathiasg2480]

So glad for the music to be back! Thanks for your dedication as always

[@DylanGoebel]

This is my absolute favorite series on any platform. It's a treat to see your post weekly!

[@DaveFromColorado]

I watched a couple of your older videos Last night, from 4 years ago.. the whole journey that I have been watching since you are casting cylinders yourself in your garage, makes so much more sense now. And it is truly awesome that you got to end this video with yet another win. Can't wait to see the next video

[@dredrotten]

@@OneHappyCrazyPerson You sound like a very UnHappyCrazyPerson? Make sure to take your meds so you can be OneHappyCrazyPerson again.

[@bottomendbliss]

@@OneHappyCrazyPerson The win is the youtube channel. 39000 views in 21hrs, 200k subs.

[@DaveFromColorado]

@@OneHappyCrazyPerson i could sit here and tell you how wrong you are. if you do not like what he is doing, then don't watch it.

[@2STROKESTUFFING]

😘

[@dontarguewafool955]

​@@OneHappyCrazyPerson Character like yours, is called " joy suckers ". Get a life and do something constructive with it, instead of trolling talented diligent people that overcome obstacles and bring prosperity and skill into the community. The man is a winner, because he never gave up and now is enjoying the fruits of his labor. Something you may never experience sitting at your key board condescending others.😊

[@lucas02389]

“Finish it up with a hand job” I hope he intended to say that because it was hilarious

[@oskarvidarsson3258]

You know it's a good episode when the jazz is playing!

[@retsamyar]

the first 5 minutes or so with the saxiphone song playing was wonderful! greatly appreciate the ambiance you created there. Thank you for the videos and all the creativity you share with us.

[@onefastgmc]

Ive stumbled across this channel a couple different times, im now subscribed so i never lose it. Your content is awesome and your out loud thought process is super relatable to what goes through my head when something doesnt work right 😂

[@godfatherderzucht]

This was a very nice video! I enjoyed the music and matching screen action!! I got the feeling you had also a lot fun creating this video. Go on mate! You are awesome

[@SCUBASteveSPYY]

Well done. Many lessons learned and lots to unpack here!

[@user-ny2bx8ez1c]

Following for years & glad to see you're going in the right direction. Keep going!

[@vaiskipoika7316]

amazing video as always i have been following your series of this engine a long time and its great to see horsepowers and i learn new things everytime i watch these videos

[@TeznaGFX]

5:54 anyone else xD

[@2STROKESTUFFING]

😁

[@johnhadrava232]

Good for you man, I like the fact you never give up!!!

[@Haps_q]

Im glad to see that its fully back to experimental, the difference is that its making stuff work before adding more madness.. This truly is the greatest channel on youtube.

[@jiminycricket9877]

Well done. Your perseverance is inspirational!

[@dietbr00ksy]

I love this channel. Keep pushing brother!

[@geemy9675]

its great when "double" and "power" go together

[@drewmcneill4471]

I've been rewatching your videos the last little while.....I was so caught up in what you were building that I never noticed, but your English is so much better than it was a few years ago!

[@djavankoolemansbeijnen349]

Great video as always. Might wanna check your rear wheelgear because i saw some sparks flying of of it.

[@frido15]

Yeah, check 13:20

[@jeroen1914]

Its the brakepad doing its job, he actually slows down the dyno with it as well so it has a pretty hard life haha. Nothing to worry about.

[@derf9465]

Sounds really crisp. Nice work.

[@marlobreding7402]

Watching you apply apoxy to your 2 stroke engine reminds me of in 1968 when I was 16. I had a Harley Hummer 175cc 2-stroke bike.head almost no power. we determinede it needed more compression. My father worked on space capsules at McDonnell DouglasAerospace company. He sealed the craft. He brought some heat shield material which is called Avacote. It resists temperature to 5000° F. We filled a portion of the head. It made good power. It only lasted a short while being heat shield it did its job a slowly melted. 🐌

[@matthewnorris203]

Man, he’s really into this stuff. I’m lovin the jazz you have goin on while you’re doing stuff.

[@tobiasburgin7265]

Its great to see that all the work is now worth

[@hallibutt24]

Who doesn't like it finished off with a quick handy!

[@MatteoBaldi]

Nice to see progress, keep up the great work!

[@nathancurtis1083]

Well i had my mid 70s rd 50 doing 16000 rpm and just off 100 kph with only 4 mods compression increase , 100cc reeds and carb from a similar Yamaha , cut the piston ports open. Most important i raised and notched the exhaust port. Gas flow is very important must get burnt gas out of cylinder.

[@ASoftaaja]

SUFFERING IS OVER! To hell with the choked exhaust duct theory. Or it at least needs some further research. The belt drive probably adds at least 5% losses so it probably has already about 15 crank hp. I am eager to see if you can push it past 20 with some tuning. If it now has torque peak at 14K, the potential could be huge.

[@lucal6166]

So good to see this project coming togheter!!

[@bakkerhenk8475]

Love that the jazzy tunes are back ❤️

[@vincesnetterton]

Awesome win my friend… love the videos and your determination..

[@Nrgpack]

Yeeeeaaahhh, awesome!!! Big thanks Alex!!

[@SyberSqueegy]

Good video, I enjoyed your use of 'Smooth Jazz' during your machining time-lapses.

[@jeffharris4558]

Awesome! The motivation you needed, so good to see something going well for a change, definitely a win 🏆 Look forward to the next one 👏🏼👏🏼👏🏼

[@mtech1961]

This was Cathartic - lovely music and Milling after a crap day.

[@babaarcuszatir]

Music took this episode to a new level! The episodes were already entertaining, but with more tunes (pun intended) it was great. 🙂

[@putteslaintxtbks5166]

I'm happy to see some forward ground for you. I agree, work on as is with tuning and getting some benchmarks befor adding anymore variables and glory in you success for a time.

[@hunnybunnysheavymetalmusic6542]

You need a slide-trombone style exhaust so you can lengthen and shorten it based on the time of the exhaust port opening and closing. Should be something you can make out of dimensional tubing on your tooling there and adjust it based on the RPM through the crank sensor and a small spring return solenoid or even a linear motor and some kind of tiny computer like an Arduino or Raspberry. Set yourself a 'star-and-idle' point and then have it draw in shorter as the RPMs climb toward max RPM and if it is not adding any load or friction to the engine's output, it SHOULD allow you to super-precision tune your scavenging to reach the very max it can be.

[@dredrotten]

Good idea.

[@anrtrading8334]

thanks for that, I'm hooked on the idea

[@iwebChristophe]

This is definitly a WIN !!! Good job !

[@jams_finest]

Finally we got the results 💯, now it's on to the testing and tuning

[@MikeyAntonakakis]

You should be able use a beam-type torque wrench to measure the running torque of the gearbox/pulley setup to get some idea of the torque it's eating. Turn from the crank with belt and spark plug removed to get a baseline (basically just resistance of piston in cylinder and rotary valve), then see how much it changes with belt installed and pulley tensioned. Even 1Nm difference would be more than 2hp loss at 17k! And I don't know if you're there yet, but maybe it's almost time to start thinking about the engine dyno again now that the engine is running pretty good. I think this fits with the "lowest hanging fruit" approach that you've been taking (which is a very good approach for your situation btw!). I think you're quickly getting to the point where the belt->gearbox->chain reduction complexity is becoming the lowest fruit...

[@brentspellmeyer8943]

🎉

[@viktorandersson7819]

I agree, the losses would be very interesting at this point. It might be producing much more power than measured and so the approach to gain more might be different. Also, the engine dyno would be much better. The swedish "Tvåtaktsmeken" made a really neat dyno with hydraulic pump instead of an electric brake. Seems to be consistent, easy to use and precise. That truck brake doesn't seem to be a very good solution apart from it being easily controlled with the computer. kzbin.info/www/bejne/pJ-blWqgfdN6hpY

[@MikeyAntonakakis]

@@viktorandersson7819 yeah water brakes are cool, I used to use one for a 600cc engine when I did Formula SAE (Formula Student). I think most or all his issues with the engine dyno were input signal issues (vibration in load cell and interference on rpm signal) which should be easy to solve, then just PID tuning for the control loop. At the time, though, I think there was often confusion between dyno issues and experimental engine issues.

[@whiplash2891]

Yes! The music's back! Thank you

[@ianrusso8790]

love this channel, this is all I did when i was from 13 to 18, started on my aprilia replic 50 and than graduated on the cagiva mito 125cc. I managed to get in to the high 30's hp, with malossi and polini parts I got to 40 hp at 15000 rpm it was. this was back in the early 90's before every nut started going crazy about polution......

[@markbeaulieu130]

No way you just said you're gunna give it a hand job!!😅 I love this guy

[@erniemathews5085]

You have been my professor with two-strokes, especially hotrodded two strokes. It's been fun for a four-stroke guy: all new stuff.

[@abovegroundgarage]

Proud of this man. He’s come a long way.

[@AutoBeta2T]

Great work. I'm pleased you are getting there. The Denford Triac does a great job. 😊

[@ChainDragGONE]

Alex, The machining of the head to accommodate different port geometry is brilliant! The ability to Dyno a series of runs, document the test, then remove the current designed port and install another slightly different is just dam smart thinking outside the box. It is always about, just one more thing, that you surprise us with! You need to get a printer or interfaced program that can document gains or losses for comparison. You have created a Engine from scratch and taken us along the journey, this is why your videos are so good, thanks. I understand, a couple of ice cubes and 3 fingers of Jack Daniels, can make a great idea....Futuristic...in reality!

[@ronaldroberts9556]

A WIN!!! Most definitely! Am really pleased for you!👍👍🏴🏴󠁧󠁢󠁷󠁬󠁳󠁿

[@danielgimblett]

The best thing every week man.

[@acurarl9929]

Amazing video man you have been hard at it. Great wrk

[@allenmcknight4757]

Well done continue to move forward

[@jamesgnarkill3112]

Heck yeah!!!! What an difference, way to go!!!!

[@rhouser1280]

When I'm in forums looking for advice on my bike, I never know if I'm talking to a guy like this or someone who just learned the difference in 2 & 4 stroke and is really good at BS.

[@bowi73]

looks you got it man congrats 👍, cant wait for the next one hoop you can get more power out of it

[@CriticoolHit]

5:55 As an American this has a VERY VERY different meaning. I needed that laugh this morning.

[@Bettinbig7024]

Thanks. Cheers

[@robsrides5851]

i miss working on projects with this kind of passion. now im old a feeble so i live thru you :)

[@gary-rf1co]

From Arkansas, i dig it! I repair old outboards!

[@gilowens5785]

That had to feel good. It shows through in your enthusiasm.

[@guyroy4857]

Very good information, Amazing research too. Thank you for the video.

[@malisinimicus4358]

that runs avery nicely

[@ipoopmuffins]

Finally some amazing progress. I’ve been so stumped the last few months. Could changing the rear sprocket help with the dyno runs and their length?

[@gabrielpedrini]

Volviste amigo, ya extrañaba tus videos 💪

[@jongonegone1262]

ITS ALL IN THE MACHINING COOOOLANT !!! ITS LOOKING SMOOOTH !!!

[@olefugle]

Great episode!

[@tonymitchell1211]

You are an inspiration to diy and me ! From Australia

[@alternatemusicaddict5226]

Smooth jazz and cnc noises really is a treat

[@kluckluc]

This episode a win. Again! Congrates my man. It almost gets boring :D It will never be. Keep it up. Looking forward to the next

[@kluckluc]

Ps. Love the jazz tunes. What is it?

[@wippy748s]

keep up the good work fella

[@richardharding3682]

Do your thing Big Man.. Regards from Sunny South Africa..

[@sweetpeaz61]

Yaay! a win for sure ..keep at it 🙂

[@brianwaloweek6770]

Loved tweaking my 75 Yamaha RD350 using a Dremel,files, and sandpaper. And changing front and rear sprockets plus expansion chambers. Plus tuning the carbs. No luck with the electronic ing. Stuck with the points.

[@hunnybunnysheavymetalmusic6542]

The most embarrassing way to lose a race is to leave the line on an empty fuel tank [HOP HOP HOP!] 🐰🐇

[@calebcrockett1085]

Just want to say thank you so much for this content, started watching you because I grew up riding old 2 stroke 80cc motorcycles and you’ve taught me more over the past couple years than I’d ever imagine knowing about how these things work lol

[@johnyoung3103]

Just to add more complications to your life: have you ever considered a flow bench and smoke chamber to see what the ports are actually doing?

[@joaomelo7376]

Not sure what happened there but there was sparks coming out the rear wheel!! Sprocket maybe? Anyway finally good progress, we waited so long!! Road to Power!

[@razor1uk610]

Rear brake pads wearing when being used, the metallic particles within the pad's sintered matrix are still glowing hot as Alex uses the rear brake to steady the Dyno and/or slowdown.

[@jmckittrick1]

Great video. I've never seen a 50cc sport bike before, or really any 2 stroke sport bike. Very cool

[@stuartbradbury9514]

I carnt be the only one that said hello an welcome back to my garage 😂

[@nigozeroichi2501]

Excellent, nothing like a smile that says (finally we're heading the right direction) 🥳

[@bramvermaat1453]

EXCELLENT video!

[@Gillybean69]

Love the ‘Emmanuelle’ background music 😉

[@upsidedowndog1256]

Sounds badass again!

[@TheSmartGerman]

hi, love your videos. I have a tool related question. What chop saw, you're using to cut the metal at start of the video.

[@wfomph1435]

love the background music

[@user-tp1lp4hj8o]

I finally understood everything when he said we’re on the right track

[@XfireKeenmike]

processing nicely.

[@ACE-xr4jz]

Jazz and machining ❤

[@dominicanwar363]

Awesome work, keep it up. If you have the chance please try ZX1 oil additive.

[@philyouup6589]

Sounds like my pumped up pocket bike I had years ago.

[@fullgas1413]

Nice song, Nice engine!

[@kingcosworth2643]

That's better, sounds so much better dude

[@Jim-ic2of]

Yeah ! Great Job 👍 !😊

[@1979rm250]

I screamed at the top of my lungs NOOOOOOO at 14:45😱😱" haha we ran out of fuel!". WHEEWWW thank god!😅😅

[@bossbuick8615]

i love to hear that engine sing