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 Estrella Maintenance & Technology
Gast
Beiträge:

23.04.2006 21:42
German Estrellas vs other Estrellas power Antworten

I had a 1996 french Estrella that I sold last year (what a mistake !)

Now, I want to buy another one in Germany (1994 model) because
there are none for sale in France but I read somewhere
on this site that the Estrella that were sold on the german market
had less power(for environmental reason ?

Has anyone tested the two versions, is there really a difference ?

Also , the 1994 version does not have a "heated" carburettor,
is this a problem ?

Thanks

Bernard

Cadfael Offline

ADMIN


Beiträge: 3.301

23.04.2006 21:48
#2 RE: German Estrellas vs other Estrellas power Antworten

Hello Bernard,

ALL German Estrellas only have 17PS / 13kW. With another carburettor cap it makes 21PS - but no one would modify his Estrella like this.

The 1994 Estrella indeed has no carburettor heating.
I have both 1994 (green) and 1997 (red) Estrella.
Difference? NONE! No problem at all!

You had a 1996 Frensh Estrella? I thought they were sold from 1997 on in France!
Thanx for the information!

CU
Andreas

The French Ant Offline

Neuling

Beiträge: 16

03.09.2006 01:27
#3 RE: German Estrellas vs other Estrellas power Antworten

Hi,

Mine (French BJ250C2 from 1997) is told as 19.9 kw (= ? ps), with Keihin CVK34 carburator (from the the user book).

Dirk the duck Offline

Doppelsternchen

Beiträge: 624

03.09.2006 07:36
#4 RE: German Estrellas vs other Estrellas power Antworten
In Antwort auf:
19.9 kw (= ? ps)


..... =27 HP (ps)

should be a mistake.

There's just one possibility to get 27 HP out of the motor: The japanese bigbore-kit with 350 cm³ in combination with the open carburetor-cap.

Maybe it has the other carburetor-cap, then it would have between 20 and 21 ps.

Don't know, how the taxes and the insurances are charged in France, but maybe you pay much to much.

The french ant ( Gast )
Beiträge:

03.09.2006 12:49
#5 RE: German Estrellas vs other Estrellas power Antworten

Hello Dirk the duck,

Thank you for your comment. Strange that Kawasaki made a mistake in the user book, but you must be right!
This power is given for 11800 tr/min (turn per minute or rotate per minute = rpm, according to UTAC norm): could the motor go to this speed ?! I don't think so, according to power graph given by Andreas ! For information, the torque is "unknow" in this same user book !

I do not really understand what gives the power. So, sorry.

My other moto, TW Yamaha, 125 cm3, is 11.8 HP (8.7kW). The maximum for a 125cm3 in france is 15 HP (German MZ 125 RT for example).

Concerning power taxes according to french law, the TW is 1 HP and the Estrella is 3 HP. This is normal I think because it includes the torque, what is really different from TW to Estrella !

Best Regards

Cadfael Offline

ADMIN


Beiträge: 3.301

03.09.2006 13:26
#6 RE: German Estrellas vs other Estrellas power Antworten

Hallo Xavier,

the German Estrella has 13 kw (17 ps) at 7500 rpm.
I can't believe that it's differnt with Frensh Estrellas!
The Frensh have the same or comparable enviromental laws.

And I think that 11800 rpm would kill an Estrella motor. The stroke speed would be much too high. But Our speciallists surely know more about it than I do.

There must be a mistake?!

CU
Andreas

Dirk the duck Offline

Doppelsternchen

Beiträge: 624

03.09.2006 13:30
#7 RE: German Estrellas vs other Estrellas power Antworten

In Antwort auf:
And I think that 11800 rpm would kill an Estrella motor. The stroke speed would be much too high. But Our speciallists surely know more about it than I do.



... the engine wouldn't have the time to show the white flag, before it explodes at 11800 rpm .

I think, it is just a mistake in the print of the users book, maybe it is not the right one for the BJ 250.

The french ant ( Gast )
Beiträge:

03.09.2006 13:43
#8 RE: German Estrellas vs other Estrellas power Antworten

Hi,

The user book is the right one. However, I do not know why it was written such wrong and/or impossible numbers...

Sorry again for confusion. As you said Andreas, it must be the same as German Estrellas.

Nevertheless, the power is enough !

Dirk the duck Offline

Doppelsternchen

Beiträge: 624

03.09.2006 14:01
#9 RE: German Estrellas vs other Estrellas power Antworten

Maybe not the same as German Estrellas, but same as Japanese Estrellas, and they have 21 hp.
There is no possibility to get more power without any constructional changes.

Cadfael Offline

ADMIN


Beiträge: 3.301

03.09.2006 16:04
#10 RE: German Estrellas vs other Estrellas power Antworten

Hi ...

another item ...

a motorbike never has it's maximum power at the maximum rpm.
If the Estrella had it's maximum power at 11800 rpm, it would make a maximum rpm about 13.000!!!
Ever a small "sports bike" like the GS500(F) has a maximum rpm of 10.000!!!
I think only real street race bikes like the GSX-R, CBR or the R1 make about 12.000 or 13.000 rpm. But these have a short stroke while the Estrella has a long stroke ...

CU
Andreas

Dirk the duck Offline

Doppelsternchen

Beiträge: 624

03.09.2006 16:30
#11 RE: German Estrellas vs other Estrellas power Antworten

In Antwort auf:
Ever a small "sports bike" like the GS500(F) has a maximum rpm of 10.000!!!


... my Honda CB 100, one cylinder, year of built 1972, has 12 hp at 10500 rpm .
So it is a sportbike . Katja will be AMAZED .

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