ESE's works engine tuner

[guyhockley]

i don't know. The Ryger should have had plenty of development time, given that the original idea was over 110 years ago!

[guyhockley]

[QUOTE

http://amcn.com.au/editorial/13291/
Personally they are in my opinion one of the most beautiful bikes ever made. It was a gusty decision to make the bike for Bimota, shame it killed them off.[/QUOTE]

Agreed. Link to a 13 page article showing diagrams and engine parts that was way too big for KB - 33mb.

https://www.dropbox.com/sh/uv3encacg..._4GerniDa?dl=0

[F5 Dave]

Actually Ken, I've kinda been hoping for some time you would throw down a bit of a past life history of your involvement in Orbital, but haven't asked as I understand you are still busy.

[katinas]

i don't know. The Ryger should have had plenty of development time, given that the original idea was over 110 years ago!

From this forum, DKW pump cylinder http://www.kfz-tech.de/ZweitaktmotorA.htm

[katinas]

That would be a perfect example of history repeating itself. Suzuki used this idea in 1962; they made the third transfer port of their 50 cc works racer as high as the exhaust port, with the intention of pressurizing the crankcase. But in 1963 this third transfer port was no longer any higher than the others...

Just remember Ryger letter:

Port timing ? …not important !

[tjbw]

i don't know. The Ryger should have had plenty of development time, given that the original idea was over 110 years ago!

That's one of the things that amazes me about two strokes, it seems no matter what idea you have, someone's tried it before.

[guyhockley]

From a book written in 1968, bet there's an earlier one!

[Frits Overmars]

From a book written in 1968, bet there's an earlier one!

Bet you're right .

[guyhockley]

I had a bet with myself that it would be an MZ...

[Frits Overmars]

I had a bet with myself that it would be an MZ...

Nah, I've never seen an MZ with more than one inlet disk per cylinder, not even in their attic (below).
MZ did however build an engine with a piggyback inlet decades before Aprilia did.

[katinas]

Nah, I've never seen an MZ with more than one inlet disk per cylinder, not even in their attic (below).
MZ did however build an engine with a piggyback inlet decades before Aprilia did.

Amazing. Which motorcycle was with this 3-cylinder engine

[Frits Overmars]

Amazing. Which motorcycle was with this 3-cylinder engine

This one.

And here are some more pictures: MZ RD125-3.zip

[guyhockley]

Did they ever actually race the tandem twin?

[katinas]

This one.

And here are some more pictures: MZ RD125-3.zip

Thank you.

Remember card on this motorcycle: not for sale, but.

[JanBros]

This one.

And here are some more pictures: MZ RD125-3.zip

my german is pretty good, but this I do not understand :

Dreiplattendrehschieber steuern den Einlass aus drei Amalrennvergaser

for those who do not understand german :
drei=three
platte = probably a disc here
drehen = turning
schieber = a slide ?
steuern = controling, as in determining open/closing of the inlet
Einlass = intake
Vergaser = carb

can't see anything being fitted between carb and crankcase. if they mean the slide inside the carb's with the "schieber" why mention it specificaly ?
and what is turning ? a rotary disc ? where should it be fitted and how would they be driven ?