Hi all - one of the TriumphRat guys linked this thread - hope I can join in your fun.
Will look forward to checking out the rest of the site.
t71ford said:
Another aside, I was out at Ringo's house tonight, and we were poking around his CB550. It happens to have the exact same thyristor R/R as Kool-aid! This makes the swap to the Mosfet R/R incredibly easy on the CB550, and possibly other models as well. The wire colors are the same. Here is a diagram for wiring to the Yamaha R1 R/R. It shows the connector well on the R/R. Three yellow stator wires, one power, one ground....simple!
Someone post up if this will fit other models. It appears that it works for Yamaha XS as well.
Not intimate with your particular R/R but is it this type with the integrated Connector plug, with smaller .25" input terminals and 0.32" output terminals?
Like this?
You can get connector for a MOSFET R/R from Eastern Beaver that will fit directly into that OEM harness connector
http://www.easternbeaver.com/Main/Elec__Products/Connectors/CNA250-TL/cna250-tl.html
The Male one is the one you would fit to the new R/R - the female if you had to replace damaged OEM harness connector
The male is to install on free cable, unlike the VTR unit which is hard-mounted to the R/R body.
I supplied an FH008 R/R with this connector installed for a 900RR
The FH0008 is a good choice replacement candidate for this OEM SCR R/R
- that model is found on 06-07 CBR1000 and 06+ CBR600 and you can just remove the connectors and install this one.
(that regulator model has cables, as opposed to integrated connector)
I will caution that nearly all post-install issues when retrofitting to a MOSFET R/R are due to improper connection of the connector terminals
This is a high current circuit and the quality of the connection from cable to terminal must be stellar
On all of mine, I initially crimp AND then solder
If I can correct a couple of mis-perceptions from earlier:
MOSFET R/R and SCR R/R both work in fundamentally the same way, in that they shunt the negative going cycle directly
i.e. they effectively short the stator winding.
This results in a significant amount of heat generated in the SCR units - high power dissipation!
But the MOSFET runs significantly cooler, employing the same 'shunt' across the generating coil.
The shunt current is actually about the same - however the difference is that the internal resistance of the conducting MOSFET is extremely low;
that means that for the same current, there is much less power consumed in that device.
You can literally put your hand on a MOSFET R/R that has been running for some time - do NOT try that with an SCR R/R.
It is the heat that actually ultimately kills the SCR R/R and why there is such a high incidence of failure pretty much across all marques.
The related part to that is application on a Race Bike - when you remove the load from the headlights, a Shunt R/R actually works HARDER than when there is a higher load from the bike
i.e it has to shunt MORE current with less load.
This makes the SCR MUCH more likely to fail on a race bike with little load, relative to a Street Bike.
To the failure in question - my belief is that the R/R failed and unregulated voltage was delivered to the Battery
Most R/R SCR will fail short, at least initially - that typically results in a lesser voltage output because it is a dead short across the generator;
however some will fail open - and then the output voltage will climb substantially.
At full RPM this can be quite catastrophic to
any battery!
(Gen curvey SV650 R/R typically fail in this mode and often fry the Igniter Module as a consequence)
To the contrary, I can't see a mechanism whereby a battery can cause a failure to an R/R - well perhaps if the battery was completely shorted?
(honestly don't know if this particular plate spacer issue described earlier would have created this scenario)
I was one of the early adopters of MOSFET technology in R/R Retrofits and authored a thread on TriumphRat on the advantages - this thread has been references on literally hundreds of other forums in link-backs
I hope you find it useful.
http://www.triumphrat.net/speed-triple-forum/104504-charging-system-diagnostics-rectifier-regulator-upgrade.html
I have a Shorai in my Triumph incidentally - I think it is fantastic piece of Technology.
I also met David (ShoraiTech) - they are local Bay Area company - and I have to say the sincerity & candour you see displayed in his posts is quite genuine and comes through even more strongly in personal interface.