JAWA 350 Ultrasport / 559 R- testing advanced Libenak power...

[@pataudi8025]

This bike will always be a legend. In India we only had the 353/4 type and we love it to this date.

[@Q.L.Engineering]

Thanks for the kind comment. The 353 is clearly the more beautiful version, relative to the ‘modern’ 559.

[@pataudi8025]

@@Q.L.Engineering Yes 353 is the best. We had the 250cc bike here always and we loved it always. The sound the feel and everything about Jawa is so unique to itself. We all are thankful to Czech Republic for making this beauty and sharing it with the world. 🙏

[@Anandkumar-hz8mn]

@@Q.L.Engineering Can I expect the same handling if I mount the tuned 559 engine in a 353?

[@Q.L.Engineering]

@@Anandkumar-hz8mnDepends what you mean by handling. The 353 is very similar except for the engine. The way older 353 more difficult to convert into a powerful machine. But 20 to 25 HP should be possible if you can get hold of a rare Libenak cyclinder made of aluminum.

[@MB031]

To slo na zadni hned 😀 ta vali panecku, nejlepsi motorka..

[@renatakrutova4702]

Úžasný stroj. Nádhera

[@miroslavnedved2985]

Opravdu, zdravě závidím a jsem rád za tyto lidičky a super stroje.

[@KeyserTheRedBeard]

neat content Siegfried von Stern. I crushed that thumbs up on your video. Continue to keep up the high-quality work.

[@Q.L.Engineering]

Thank you Sir.

[@fury_addict]

What a good looking motorcycle.Good work by the owner for keeping and maintaining this beautiful machine. Greetings from 🇮🇳

[@sasquatch6903]

coolest bike ever

[@jaishetty8586]

We had one. It was a 250CC 2 stroke just like this one.

[@alexavdonin5727]

Это лучшая форсировка 2т мотора что я видел, все на высшем уровне!

[@Q.L.Engineering]

Спасибо тебе, друг.

[@ЮрийБесфамильный-б6е]

Форсированный мотор долго не живет.... у спортсменов раньше чуть не перед каждым заездом их перебирали врямо в поле, возле палатки))) Я один раз даже свечой поделился с гонщиком))))

[@ПроДвижение-ч2в]

@@ЮрийБесфамильный-б6е дык они и жгут на них на заезде,а тут просто прохватил...

[@alexavdonin5727]

@@ЮрийБесфамильный-б6е это понятно, не зря же про 2т моторы говорят что их жизнь короткая, но яркая

[@ПроДвижение-ч2в]

Oh Nostalgie für die Jugend der Verstorbenen...ich hatte einmal Java 250, Feuer-Apparat! С уважением из России!

[@РустамКасумов-б7г]

Это технический шедевр одним словом золотые руки

[@jirislavicek9954]

You did an amazing job. Great to see Jawa in such condition 👍

[@Q.L.Engineering]

Well, I didn’t do much on the outer appearance of the bike. Just technically everything was updated. Visually she is still the same as I found her…

[@jirislavicek9954]

@@Q.L.Engineering It is hard to find a bike in such pristine condition. I remember as a child so many of them on the road. Then in 1990s they became worthless, everybody wanted a stronger bike. The barns in Czech villages where full of them. Nowadays they became quite sought-after again, especially the well preserved pieces.

[@ДмитрийЗдобнов-о8б]

Вот это валит,класс👍

[@alexbut9487]

А звук выхлопа какой чудесный и приятный...

[@borisneufeld6297]

Дааааа, запах детства..👍👍👍

[@JawaYurij0555]

Красивый мот👍,такой беречь надо.

[@iava1981]

Great bike!, that engine is modified!! 😍

[@Q.L.Engineering]

Correct!

[@motorcuahmed]

Jawa👍

[@uwek5472]

Junge Junge dein Wissen ist traumhaft da kommt Mann sich schon ein bisschen blöd vor😂 Weiter so🎉

[@frostmroz7487]

K,4rw,a idzie jak wściekła ,fajna przeróbka

[@johnlogan1333]

Thats EPIC !!!!!!

[@vwfanatix]

Wow it's top build of Jawa motorbike.

[@Motodiably625]

ale ta jawa idzie 😍super

[@Q.L.Engineering]

Thanks. Just jump on for a minute kzbin.info/www/bejne/hnPYgJikn92fnbc

[@raymondbarrett7384]

Is this a tuned 350cc twin 2/stroke?? I had 1 in the early 60's here in NZ. Having a 2/stroke twin with smoky exhausts was "sneered " at by the British bikers ( Truimps/ BSA's etc. But this bike had been mildy tuned /ported and had compression very slightly raised - still ran on standard carb and exhaust pipes. At the traffic light it would wheel stand 1st 2nd gears when needed and blew 500 & 650 twins to the "wees' up to 60 Mph -had fantastic low end torque as well. down side? Had to decoke the ports every 3000 miles it was pre mix using the measure under the petrol filler, a 1 measure of 50 SAE oil to the gallon . Bout 1/2 pint or there abouts. would love to have it now as a 78 year old!! Raymond

[@Q.L.Engineering]

Thanks Raymond. Thats a nice story. I hope you can ride one again one day. Or you come over to Europe to test mine. Which by the way is a quite heavily modified 250 single, now being a 350 reed valve single. Regards S.v.S

[@Cadfael007]

Sehr schön!

[@arturderli7402]

Hello, very nice bike you got, Please tell me the name of the carburetor?

[@branabarum]

chci to!

[@argo1974R]

Hallo A., die Maschine läuft ja super, bei deiner Gründlichkeit war auch nichts anderes zu erwarten. Bitte noch ein Video über den Test der Höchstgeschwindigkeit. Hatte mal selber 559 einen MZ-Kolben spendiert, um auf 295 Kubik zu kommen.

[@applanateearth586]

Very nice!

[@ГеннадийШапилов-ж1н]

Старушка просто Пуля !!!:)))

[@Q.L.Engineering]

!!! 👊🏼💪🏻💪🏻💪🏼

[@peterspanik]

Daaamn you're crazy! :D

[@Q.L.Engineering]

💪🏼💪🏼💪🏼🤪

[@БорисФролов-з5б]

Была когда то!👍👍👍

[@alesjezek9755]

Super,labombastic,fantastic, školastic!!!!!!👍🤘🤝👌👏😍🏍️💓😇🙏🧠🐬

[@АлексейСавоткин]

Закозлил на Ура 👏👏👏👏👏👍

[@ДмитрийСолодухин-с9и]

Панония на обочине?💪

[@misiekvuychik3768]

MZ es 250

[@ДмитрийСолодухин-с9и]

@@misiekvuychik3768 👍

[@DAKLAKNEWSmtd]

good

[@sulaemptu6814]

Dolles Ding. 👍🤘

[@sajinksaji3202]

Can i know the list of modifications? Id want to. Build one for me!...

[@Q.L.Engineering]

Please check this blog. It includes all details: forum.jawafreunde.de/forum/index.php?thread/22776-projekt-jawa-573-ultrasport/&pageNo=2

[@SirDrakeNewcanon]

Its now not a 250 but a 350 single cylinder with 30 HP. Not bad!

[@Q.L.Engineering]

Yes, at least if considering that the material is more than 50 years old.

[@jasonferreira5310]

3ssa moto é linda e tradicional, parabéns a seu proprietário pelo bom gosto.Jason/Goiânia Goiás Central Brazil...

[@caryfuk8]

how about ignition, is stock? there will be more power :D

[@Q.L.Engineering]

True. It a VAPE system. Set to 18 deg prior to TDC. Unfortunately static advance as most two strokes. Dynamic advance adjustment would be better indeed. There is minor knock at max load and low rpm, but enough potential for more advance at higher speeds.

[@Q.L.Engineering]

For more details please see making-of video: m.kzbin.info/www/bejne/fmTWkHaborR9b8U

[@caryfuk8]

I think with right ignition and you setup yo can make around 45 hp if you get more like 10000 rpm

[@caryfuk8]

​@@Q.L.Engineering You need smaller advance in low rpm and bigger on higher rpm. Make some tests and chose one setting feeling better. You can make big power in large spectrum rpm.

[@Q.L.Engineering]

The engine is made for low rpm and high torque. It is running close to 50 Nm and 35 HP at less than 6000 rpm. Cageless big end con rod bearing is not made for a higher engine speed level.

[@prasadchinnatunga5099]

How much cost this bike

[@Q.L.Engineering]

Considering all the work and hand made parts maybe 15000 $ or 20000 $? But won‘t sell it mate..

[@mr.siddharthakundu7266]

👍👍👍 👌👌👌 🙏🙏🙏

[@АлексЮлин]

Глохнет ява ? Подгазовывает все время

[@rafalnegro2133]

👍👍👍

[@engelangel5010]

У нас в Болгарии "JAWA 350"( назовали "Ява близнак " ). (двойняшки).Очень хорошая и надеждная машьiна-16 л.с. думаю."

[@errebi7509]

wow

[@uuu-jt6jy]

Nice outfit you weare, even nicer bike. I would like to own one

[@MrMultiSpanky]

Ja und ist eine Jawa 250/350er sah man für früher täglich heute seltener hatte ich auch schon / 2takt 2 Zylinder Motor war mal das billigste Neumotorrad was man bekommen könnte heute keine wirkliche Rarität aber sicher ein Einsteiger Motorrad für zukünftige Oldtimerfahrer

[@denboe2894]

Seems really fast.

[@Q.L.Engineering]

It is indeed - relative for its age.

[@АлександрНовоселов-ж3т]

Лучшая ява !!!

[@ПроДвижение-ч2в]

Mit freundlichen Grüßen aus Russland!

[@Q.L.Engineering]

Beste Grüße zurück aus Германия.

[@krzysiekboss575]

Super maszyna

[@Umbulation]

50 hp?

[@Q.L.Engineering]

No, thats to much. Depending on exhaust 30-35…

[@alexbut9487]

Такая у бати была и да она валила и я учился ездить на ней после мопедов.

[@jasonferreira5310]

Essa moto

[@ondrejfolk1274]

Yea czech power!

[@Q.L.Engineering]

Correct!

[@ondrejfolk1274]

I have small Jawa 555 And engine from Jawa 250 kyvacka for small tractor . And i live in czech republic

[@Q.L.Engineering]

👊🏼👊🏼👊🏼🇨🇿🇨🇿🇨🇿💪🏼💪🏼💪🏼

[@АлександрМамлыга-ч8б]

Слышу первая скорость...

[@taifun7585]

Na ja,in meiner Jugendzeit hätt ich mich geweigert auf so ein "Bauernmotorrad" zu steigen,allenfalls bei Nacht und Nebel,weit ab von jeglicher menschlichen Besiedelung,denn alle meine Freunde hätten mich ausgelacht.Die Jawas waren das Symbol der Unsportlichkeit,schlechter Fertigung,Qualitätsmangel. Heutzutage jedoch,schaut sie besser aus als alle diesen modernen zweirädrigen "bikes".

[@Q.L.Engineering]

Ja, so ändern sich die Zeiten bzw. Geschmäcker.

[@karolkupec-i5m]

Total butty grate machine

[@Олегпро-й8э]

Ещё бы резанаторы..

[@Q.L.Engineering]

In the making. One of the next videos…

[@jozkomrkvicka3017]

made in czechslovakia

[@Q.L.Engineering]

👍🏼👌🏻🤛🏼

[@pankajkumarpatel8492]

Whiele kidhar kiya,,,, chutiya mat banavo rider ko

[@radzisz345]

etz

[@ДмитрийШевцов-з6й]

✌✌✌✌👍👍👍

[@ЮТУБ-ПОМОЙКАСШАд2й]

Ява 250

[@wanmuhammadfakhrullahwan8078]

👍👍

[@Q.L.Engineering]

👍🏻👍🏻

[@sergo55397]

💪👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍