SUGO CDI for Borut... (ignition curves)

[jools]

http://www.ebay.com/itm/Yamaha-Tzr-250-3xv-60-Cdi-Ecu-1993-Rs-Sp-1994-Sp-/142243545545?hash=item211e6041c9:g:qE0AAOSwZQRYdJBa&vxp=mtr

seems cheap...............

[zoomzoom]

http://www.ebay.com/itm/Yamaha-Tzr-250-3xv-60-Cdi-Ecu-1993-Rs-Sp-1994-Sp-/142243545545?hash=item211e6041c9:g:qE0AAOSwZQRYdJBa&vxp=mtr

seems cheap...............

That is dirt cheap..

[yanw]

The '60 is for the 93 onwards R/RS with oil solinoids. It's a replacement not an upgrade I think.

[casal-fan]

A lot happening between the 40 and the 60, and the models they were fitted to.
Power went down from from 45 to 40 HP due to japanese rules, exh. port timing increase from about 188* to about 192* (wich maybe means a different PV timing as well), electronic oil pump.
Jürgen is the key here... wich reminds me I have to get my hands out of a certain place and send my 60 to him

[41juergen]

I'm on stand by Rui,... 

[allspeed]

i rem phil mccallen on std kr1 in 1989 finnish 7th from back of grid in 250 350 race at tandragee 100 road race. that was the cream of the cream road racers then. he was born 5 miles away from it. so read into it want you want 

[41juergen]

So I managed to get the data out of the 3YL setup from Jools, thanks a lot for sending the parts! As well as the other AVGAS CDI the timing is higher than for the unleaded setup. The PV opens fast and a bit earlier than the 4DP-10 version.

[yanw]

Hi Juergen, do you need a '60 to test?

I can send you mine if you like so long as I can get it back in a couple of months (or less).

Let me know if you do.

[41juergen]

Thank's a lot for the offer, but Rui already have send me his -60... So hope to get it these days..
cheers
Juergen

[yanw]

Woo! I am hoping to see if I can put a woodruff advance on my '60 after I have ported the barrels to get some performance before going "programmable".

[41juergen]

Honestly, we will see. But my feeling is if you want do it at least minimum seriously better go with a programmable. Everything else is wasted time and money, and depending on how much power you are seeking for, the programmable brings you a big step forward without any porting work.
A modification of the woodruff key gives you a slightly better timings at higher revs, but creates potentially problems with a too high timing in the lower revs. Also the PV will be not correct either...
BTW: in my opinion that is the same issue with stock porting using a different (tuned) pipe...

[jools]

So I managed to get the data out of the 3YL setup from Jools, thanks a lot for sending the parts! As well as the other AVGAS CDI the timing is higher than for the unleaded setup. The PV opens fast and a bit earlier than the 4DP-10 version.

I missed this link..........

That PV does open fast in comparison, now I wonder how the Reverse cylinder TZ's compare seeing as the 3YL was the first model between those and the 4DP, with the "plug in all in one" CDI..............??

[41juergen]

Jep, you are right.
BTW: if someone have the parts for a 3TC or so I'm happy to test that too.... Also to 3MA stuff if that would make sense...

[41juergen]

So here are the -60 data. Interesting how far the Yam engineers retarded the timing...

[ybk]

Together