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» [Oldies] Problèmes de traduction
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeAujourd'hui à 1:08 par DidierF

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeAujourd'hui à 0:04 par T54

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeHier à 21:58 par Srx56

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeHier à 15:08 par obaya

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeHier à 13:46 par spyderman 32

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeHier à 13:13 par mickey

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeHier à 9:46 par crigar

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeDim 22 Mai 2022 - 13:35 par EDOUARD Jean

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeDim 22 Mai 2022 - 8:56 par EDOUARD Jean

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeSam 21 Mai 2022 - 11:34 par Ed

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeVen 20 Mai 2022 - 21:19 par yves kerlo

» [Oldies] Un petit bout de l’histoire Morbidelli, 1977-1979
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeVen 20 Mai 2022 - 20:32 par spreyer

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeVen 20 Mai 2022 - 12:50 par pascaltz

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeVen 20 Mai 2022 - 12:08 par Dan42

» [Oldies] Jarno Saarinen, la star qui a revolutionné le pilotage (Part 5)
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeVen 20 Mai 2022 - 0:41 par DidierF

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeVen 20 Mai 2022 - 0:13 par closed

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wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeJeu 19 Mai 2022 - 23:57 par DidierF

» [ oldies ] Les photos de Roger Lohrer
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeJeu 19 Mai 2022 - 22:15 par spyderman 32

» Tom Dickie RIP
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeJeu 19 Mai 2022 - 13:33 par philwood

» [Fiction] Steak...
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeMer 18 Mai 2022 - 16:03 par janpol84

» Mais pourquoi le pneu AR est plus large?
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeMar 17 Mai 2022 - 22:26 par justin

» CONTROLE TECH
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeMar 17 Mai 2022 - 21:54 par Mykeul

» Le petit avantage de la Bestia.
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeMar 17 Mai 2022 - 16:08 par Aragon

» North West 200
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeMar 17 Mai 2022 - 9:57 par Aragon

» [Oldies] Honda 6
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeLun 16 Mai 2022 - 20:01 par T54

» [Pit Laners en course!] Clément Révolte (coupe YAMAHA R125)
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeLun 16 Mai 2022 - 16:01 par BOOZE

» Alain Michel
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeLun 16 Mai 2022 - 15:24 par janpol84

La réclame...
Mots-clés
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Marc
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EDOUARD Jean
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philwood
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mickey
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Voting16wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Voting13wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Voting15 
Pierre"PhilRead"
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yves kerlo
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Voting16wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Voting13wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Voting15 
Fügner
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Jarno
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La réclame...
-38%
Le deal à ne pas rater :
KINDERKRAFT – Draisienne Runner Galaxy Vintage
27.99 € 44.99 €
Voir le deal

 

 [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)

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AuteurMessage
Jan Thiel




Nombre de messages : 512
Age : 81
Localisation : Bangkok
Date d'inscription : 12/10/2010

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeVen 31 Juil 2015 - 8:17

At Aprilia we always used dental hand pieces.
D&H if I remember well.
We made about 400 cylinders a year, working in a team of 3.
We broke maybe 2 or 3 a year, which was not so bad in my opinion
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ktuningteam




Nombre de messages : 38
Localisation : valencia
Date d'inscription : 03/03/2015

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeVen 31 Juil 2015 - 9:05

I use disposable, with 2 or 3 per cylinder is sufficient, works out cheaper than a new high-quality and then it can spoil

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JanBros




Nombre de messages : 300
Localisation : Belgique
Date d'inscription : 05/12/2011

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeVen 31 Juil 2015 - 14:21

what burs/stones/whatever do you use ?
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ridgeback




Nombre de messages : 1
Localisation : italy
Date d'inscription : 05/02/2015

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeMar 4 Aoû 2015 - 9:45

to Frits: what about Ryger Engine?
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Frits Overmars

Frits Overmars


Nombre de messages : 2485
Age : 73
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeMar 4 Aoû 2015 - 10:28

ridgeback a écrit:
to Frits: what about Ryger Engine?
It is spectacular. It is a 125 cc kart engine with the 30 mm Dellorto carb and the low compression ratio that are mandatory for kart engines but nevertheless it produces 70 HP at 17500 rpm as compared to the 54 HP at 13000 rpm of the Aprilia RSA.
It uses regular Euro-95 petrol without oil added to it, its fuel consumption is more economical than conventional two-strokes and there are over 80% less emissions.

The Federal Internationale de l'Automobile has approved the Ryger homologation last saturday.
Some patents are still pending and this is the reason I cannot tell more about the engine yet. As soon as the patents are granted I will give more details.
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Dernière édition par Frits Overmars le Mar 4 Aoû 2015 - 13:23, édité 1 fois
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ktuningteam




Nombre de messages : 38
Localisation : valencia
Date d'inscription : 03/03/2015

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeMar 4 Aoû 2015 - 11:43

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70cv with 125cc 30mm carburetor in there ?? ... there can only be magic ...
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vin97




Nombre de messages : 8
Localisation : Trier
Date d'inscription : 18/05/2014

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeMar 4 Aoû 2015 - 17:03

Wow, that sounds incredible.

Can't wait for more information on that engine.
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LucF




Nombre de messages : 110
Age : 78
Localisation : Pays Bas
Date d'inscription : 25/05/2011

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeMar 4 Aoû 2015 - 17:37

vin97 a écrit:
Wow, that sounds incredible.

Can't wait for more information on that engine.

You are not the only one, many licence requests too !!
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http://www.geocities.ws/lucfoekema/indexNL.html
ambike




Nombre de messages : 57
Localisation : DFW,Texas
Date d'inscription : 15/11/2013

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
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Has eleven ducks, huh ?

Well OK !
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nine-thirtysix




Nombre de messages : 6
Localisation : Germany
Date d'inscription : 18/07/2012

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeJeu 6 Aoû 2015 - 14:30

Jan or Frits how much port offset (undersize) was needed to get the casted duct grinded on spec?
How was the template build and applied?

And Frits was there any offset for your FOS cylinder and the SLM process needed?

Thank you guys very much!
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Jan Thiel




Nombre de messages : 512
Age : 81
Localisation : Bangkok
Date d'inscription : 12/10/2010

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeJeu 6 Aoû 2015 - 14:44

about 0,2mm
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Frits Overmars

Frits Overmars


Nombre de messages : 2485
Age : 73
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
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nine-thirtysix a écrit:
Frits was there any offset for your FOS cylinder and the SLM process needed?
Less than 0,1 mm.
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Frits Overmars

Frits Overmars


Nombre de messages : 2485
Age : 73
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 Icon_minitimeJeu 6 Aoû 2015 - 22:26

Ryger production is running in high gear in order to meet the CIK regulations.
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Dan42




Nombre de messages : 7713
Localisation : Margerie-Chantagret 42
Date d'inscription : 06/04/2014

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Il est très intéressant ce moteur RYGER 125cc de 70HP: le plus puissant 2T jamais construit? avec une simple admission à clapets. Si l'Aprillia de 54 Hp à 13000 rpm pouvait monter à 17500 rpm ( comme le Ryger) en conservant son efficacité de respiration, il développerait 73 hp, soit une puissance voisine, mais est-ce possible? Il semble que cette bride brillante à la base du cylindre soit une partie du "secret" du rendement. Les très faibles émissions sont aussi un des aspects remarquables de ce moteur. Nous attendons avec impatience de plus précises informations ( lorsque possible) de la part de Frits qui a peut être travaillé sur ce moteur wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 809262 wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 980796
Dan
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Frits Overmars

Frits Overmars


Nombre de messages : 2485
Age : 73
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

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Dan42 a écrit:
Il est très intéressant ce moteur RYGER 125cc de 70HP: le plus puissant 2T jamais construit?
To the best of my knowledge: yes.
Citation :
Si l'Aprillia de 54 Hp à 13000 rpm pouvait monter à 17500 rpm ( comme le Ryger) en conservant son efficacité de respiration, il développerait 73 hp, soit une puissance voisine.
Yes Dan, if we look at the Mean Effective Pressure, Jan Thiels achievement is still unsurpassed. The virtue of the Ryger engine is that it can maintain this high MEP value at much higher revs, and with a lower specific fuel consumption.
Citation :
Il semble que cette bride brillante à la base du cylindre soit une partie du "secret" du rendement.
That is right Dan.
Citation :
Les très faibles émissions sont aussi un des aspects remarquables de ce moteur.
The Ryger's power and its capability for ultrahigh revs are impressive but if we look at the big picture, the 80% emissions reduction is the most important aspect. It may initiate the return of the two-stroke as the prime type of combustion engine.
Citation :
... Frits qui a peut être travaillé sur ce moteur.
The Ryger engine was entirely designed and developed by Harry Ryger. I am very happy to be part of the Ryger team now and I am eager to contribute to its further development. Who knows where this will end...
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ridley

ridley


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Date d'inscription : 19/02/2009

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La course “motrice“ paraît très importante? Il semble que tout se passe au niveau du bas moteur? scratch
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Frits Overmars

Frits Overmars


Nombre de messages : 2485
Age : 73
Localisation : Raalte, Holland
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Dan42




Nombre de messages : 7713
Localisation : Margerie-Chantagret 42
Date d'inscription : 06/04/2014

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Merci Frits pour tes commentaires.
Dan
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Marc
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Marc


Nombre de messages : 28087
Age : 63
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Date d'inscription : 27/05/2008

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Don't worry, Frits; even in french, it doesn't mean anything.... Very Happy

_________________
Un p'tit clik vaut mieux qu'une grande claque; c'est Harry qui l'a dit! [Vous devez être inscrit et connecté pour voir cette image]

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Frits Overmars

Frits Overmars


Nombre de messages : 2485
Age : 73
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

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Jan Thiel a écrit:
At Aprilia we always used dental hand pieces....We made about 400 cylinders a year...We broke maybe 2 or 3 a year, which was not so bad in my opinion
Not bad at all. But then there are dental handpieces and dental handpieces.
Some you'll find at a dental surgeon's ; some you are more likely to find in a Zoo.
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Dernière édition par Frits Overmars le Sam 8 Aoû 2015 - 13:02, édité 1 fois
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ridley

ridley


Nombre de messages : 1305
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Localisation : Dans les collines du Perche
Date d'inscription : 19/02/2009

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Course motrice: Moment durant lequel l'équipage mobile reçoit, via la pression liée à la combustion exercée sur la calotte du piston, l'effort maximal (avant l'ouverture de la lumière d'échappement dans le cas d'un moteur 2 temps).

Power stroke: Time during which the moving element receives, via the pressure of the combustion exerted on the piston crown, the maximum force (before the opening of the exhaust port in the case of a 2-stroke engine ).
Marc: wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 629615

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 167764023
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Frits Overmars

Frits Overmars


Nombre de messages : 2485
Age : 73
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

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ridley a écrit:
La course “motrice“ paraît très importante? Il semble que tout se passe au niveau du bas moteur?

Course motrice: Moment durant lequel l'équipage mobile reçoit, via la pression liée à la combustion exercée sur la calotte du piston, l'effort maximal (avant l'ouverture de la lumière d'échappement dans le cas d'un moteur 2 temps).
Power stroke: Time during which the moving element receives, via the pressure of the combustion exerted on the piston crown, the maximum force (before the opening of the exhaust port in the case of a 2-stroke engine ).
I got it now, Ridley. Let's go easy on Marc though.
Google Translator:  wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 629615

Yes, the power stroke is important, but that does not make the Ryger different from any other engine.
And like in any other engine, some things happen in the engine cases, but most of it happens higher up.
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ridley

ridley


Nombre de messages : 1305
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About Marc it's only humor. wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 809262

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 38 167764023
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ridley

ridley


Nombre de messages : 1305
Age : 67
Localisation : Dans les collines du Perche
Date d'inscription : 19/02/2009

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What is the utility of the tank topped of a filter that we can see near the carburetor?

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bentou

bentou


Nombre de messages : 2118
Age : 62
Localisation : Hauts de Seine
Date d'inscription : 06/04/2012

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Is there something like a double diameter piston for precompression, a bit like the old Norton engine ???
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» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 2) (Locked)
» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 1) (Locked)
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