ESE's works engine tuner

[katinas]

Husa, found these photos with divided into parts NSR 500 cylinder. Third photo of KR3

[Condyn]

I have to ask, and maybe I missed something, what is Dr. Jeff’s engine going in? The LSR bike? Is he casting his own cylinders this round?

Very impressive work to all parties involved.

[wobbly]

Im trying to get my hands on a bare Pulse 500GP chassis I know is here in NZ , but Jeff has another couple of ideas.

[husaberg]

is it the one on ebay that was presented as a Yamaha TZ?

externally it looks like a 4DP of TZ

Attachment 350633

that expalins why it looks so odd in the PV

i know at least one of the later Cagivas were Bridged ex port like a Honda so it makes sense that there would be Yamaha ones they copied off?
it was years ago i thought that was the one that was propertied to Be Kit or NSR but so many pictures do many years by the code it looks like it was off EBay
I think from the store that sells a lot of RS and TZ stuff whose name i cant recall.
edit


oh i just seen wobs post i have photos all mixed up.

Husa , the left sectioned cylinder is an RS but im sure no one can decipher the codes of factory kit units.
The right pic is a 4DP TZ

[41juergen]

Great story and what a wind blew you into Siberia!!!
I found some other pictures of this engine. Again this 72 mm piston that was used everywhere in Russian engines, motorcycle, tractor starter engines, stationary engines, but actually base is from old DKW engine.
One amazing thing that could be usable for racing from all this stuff, is tractor starter engine dry clutch plates, material is very similar to what was used for racing dry clutches.

Husa, philou, yes this is TZ 250 cylinder. In Husa second picture is actually 1991 3YL cylinder with usual A, B main transfers, but C was divided in two.
DP4 cylinder used from 1992 and B was divided in two, but C narrower and one. Other identification code Y-1 and Y-2 shows port dimensions, Y-2 more tuned with wider transfers (add picture of two for comparison).

From my knowledge the Y-1 stands for "cylinder number 1 (left hand side)" and Y-2 stands for "cylinder number 2 (right hand side)" for the Yamaha V engines, the suffix behind 4DP e.g. 01 stands for the different versions / port setups during the whole years the 4DP / 4TW was sold...

[philou]

does anyone have any pictures of the inside of the flowbench superflow SF60 or even better, a copy of the manual?

impossible to find it.

[jfn2]

I have a copy of the SF110/120 manual, if that will help.

[porttiming124]

does anyone have any pictures of the inside of the flowbench superflow SF60 or even better, a copy of the manual?

impossible to find it.

I'm sure I have a hard copy of the manual at home. I will check when I return later.

[porttiming124]

does anyone have any pictures of the inside of the flowbench superflow SF60 or even better, a copy of the manual?

impossible to find it.

Philou give me your e-mail adress .

[katinas]

From my knowledge the Y-1 stands for "cylinder number 1 (left hand side)" and Y-2 stands for "cylinder number 2 (right hand side)" for the Yamaha V engines, the suffix behind 4DP e.g. 01 stands for the different versions / port setups during the whole years the 4DP / 4TW was sold...

Interesting, because I have three DP4 cylinders with same suffix 00, but two cylinders marked Y-1 and one, with wider transfers, marked Y-2.

Add picture with temperature distribution from plug.

[porttiming124]

Philou give me your e-mail adress .

I sent you a scan of the manual.
Hope it can help you.
Patrice.

[philou]

yes well received. thanks again.

husa a photo for your album

[husaberg]

yes well received. thanks again.

husa a photo for your album

Beautiful a 750 one is it?
I think there is a NR album? no there wasnt' but there is now.
i have some stuff to add to it later
I have some stuff on the original and the 750 Malc Campbell rode in one of the Swan series about 89?
edit 87

plus on the oval piston twin turbo 250 they made up for Freddy
if i still smoked it would make a neat ashtray

[pete376403]

yes well received. thanks again.

husa a photo for your album

Thats a long crankpin. What went in between? Any pics of the crankshaft?
Edit: belay that, found a pic of the crankshaft - a Main bearing goes in there

[husaberg]

Thats a long crankpin. What went in between? Any pics of the crankshaft?
Edit: belay that, found a pic of the crankshaft - a Main bearing goes in there

or later





clik on them three times
https://magazine.cycleworld.com/arti.../inside-the-nr