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Thread: fs EX MOSFET CONVERSION KIT plug and play! Reply to Thread
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  Topic Review (Newest First)
12-8-2019 10:41 AM
ducatiman No joke....in the past RR's have been mounted within the airbox (!) in the interest of cooling air flow!
RR's have historically been mounted all over....under tail sections, up front under triples, side mount, under tank, under seat....

In any event, I'll custom make a harness based on your particular circumstances.
12-7-2019 6:50 PM
Originally Posted by Elsevere View Post
Benefits of the tail mount (long) vs the standard mount (short)?
This actually arose out of my need to find an alternate mounting location because gen1's have narrower side panel fairings and the big Mosfet won't fit in the standard location. On top of that, I am running a Works Performance rear shock with remote reservoir and the best location to put it is along the top of the frame section right where the stock voltage regulator mounts. I found the tail section to be the best spot and my factory tool kit was long gone, so there was nothing there to begin with.

So, if you've got a gen2 with no fancy rear shock, the standard mounting location should work find. If you're running and upgraded shock with remote reservoir an/or a gen1, the tail mount might be the better option.
12-7-2019 10:25 AM
ducatiman mounting location preference or convenience ....nothing more
12-7-2019 1:16 AM
Elsevere Benefits of the tail mount (long) vs the standard mount (short)?
4-9-2019 9:10 PM
ducatiman @phil2045 I'll try to PM right now
4-3-2019 9:31 AM
ducatiman yes contact me [email protected]
4-2-2019 11:26 PM
phil2045 Are you still making these??
4-24-2017 7:46 PM
ducatiman Herk-thanks for posting comparative readings and temps! Really drives home the point.

The old design shunt type regulator sheds heat by design ....as it ages working harder..nearing 15v, the resulting intense heat can internally damage the regulator, harden associated wiring, burn connectors and damage the battery via overheating (commonly evidenced by boiling away the electrolyte) ...even blowing bulbs.... its overcharging the whole system.

Obvious that the lower Mosfet voltages are more than sufficient to supply power (system wide) and recharge your battery...meanwhile producing much less heat...a longer life all around with the Mosfet = long term RELIABILITY.

Mosfet conversion is now a common, widely known upgrade to many bikes, not only the EX.
4-24-2017 6:29 PM
herkdriver Just finished installing a MOSFET regulator. Here's what I got for voltages. Before:
No load. 12.5V
Idle. 14.6V
4K. 14.7V
Temp. 140 f (on reg)

Idle. 13.4V
4K. 13.7V
Temp. 81 f

Electronics HATE heat so that by itself makes the $ worth it.

BTW I have a ONE regulator for sale, cheap

Thanks Ducatiman

Sent from my SM-G930V using Tapatalk
4-19-2017 6:15 PM
ducatiman a couple of standard and tail mount versions once again available and shipping

$99 shipped... CONUS only... Paypal accepted

please specify side or tail mount or supply your own desired OAL...overall length in inches I'll custom build you one
4-18-2017 1:01 AM
mischief I had an early BMW F800gs which was somewhat notorious for fried stators. The unofficial fix was a series rr so the stator wasn't running at full capacity all the time. But, yeah, shindengen is the name. I used a CE on the bmw and it seemed to do the trick too
4-18-2017 12:11 AM
ducatiman Shindengen Mosfets have a remarkable track record, you'll be well served. Upper 13's a perfectly acceptable charging rate....

Folks should be aware doing comparisons..inexpensive, junk far east knockoffs flooding ebay...avoid like the plague. A guy on a VFR got 2 1/2 *hours* out of one before failure.

I'm dealing strictly genuine Shindengen (Japanese) Mosfets. I'm going into my 7th trouble free season on both mine.
4-17-2017 11:17 PM
mischief Sorry for my assumption ducatiman, totally my mistake. I thought it was a really good deal for a series rr
A quick check with a multimeter at the battery shows that my voltmeter is reading about .5 volts low so I should be getting 13.7 - 13.8 at speed, I guess that's good enough
4-17-2017 10:41 PM
mischief Umm.. my mistake. I thought it was the series rr. Still a good rr.
4-17-2017 9:42 PM
ducatiman 13.2-3 is about right at idle, as revs rise, it should peak high 13's, very near 14.

Its not a series type RR...still a shunt but more modern design....super reliable. The EX rr was designed in the 80's...remained unchanged during the full run of EX right on up to '09, the last year.

The old thread https://www.ex-500.com/53-electrical/...t=mosfet+ex500
contains some info, trials and tribulations back when a kit was still a thought. May interest you.
4-17-2017 8:42 PM
mischief Top reading on my voltmeter was 13.2-13.3, the same as with the oem rr. I've never checked accuracy so it could be a little off. I have noticed that my brake light knocks about .8 volts off of that. I don't know if that is normal or not, my stator might be a little fried which is the main reason I opted for the series rr over the shunt style
4-17-2017 8:33 PM
ducatiman Yes, forum seems to be restored... nice work. If no negative ramifications, good on 'ya. Voltage readings ok?
4-17-2017 8:24 PM
mischief I mounted it there and I can't tell any difference in riding it. I'll try to post a pic but it may not be working yet
4-17-2017 7:14 PM
ducatiman ^ you will be reducing airbox volume, dunno its affect on running, and to what degree... something you'll have to experiment with, fully reversible of course.

And 2 more standard, side mount Mosfet kits are in stock, harnesses built, ready for shipment.
4-14-2017 12:35 AM
mischief Thanks, but I think I'll be ok on the length, better to be too long than too short. Do you see any problems with making a plate to replace the airbox cover and mounting the rr to it? I can't really think of any, and it's reversible if there are
4-13-2017 11:36 PM
ducatiman Note if you need a shorter harness, i'll make to your desired OAL....and do a "trade in" on the longer tail harness.
I'm easy to work with, cognizant of the complexities we sometimes encounter.
4-13-2017 10:23 PM
mischief So, since I've shortened the tail there isn't room to put it there. I'm thinking of removing the left side airbox cover and making an aluminum cover plate to go in it's place and mounting the rr on the plate
4-11-2017 8:57 PM
ducatiman sorry, conus only
4-11-2017 8:53 PM
dazgoul Do you ship to Canada?

4-11-2017 8:47 AM
ducatiman yqw, that was quick

please post completed pics and some voltage readings, if you'd be so kind
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