Triumphrat

tr955i · 09-26-2008, 05:42 PM

First, new member...this forum rocks. I have saved so much money simply by reading. Thanks

Display died, battery dead mid ride. Got home and hit the forum, found the wire by-pass, replaced the regulator myself, battery now charging. But at 17+v. I have not read anything about excess charging. I have not touched the stator. Could this be the last part of the problem?
tr955i

drakewn · 09-26-2008, 09:43 PM

Overcharging is evident by excessive water consumption and/or spewing or bubbling of electrolyte out of the vents.

If that's not happening then maybe there's a false reading?

tr955i · 09-27-2008, 05:56 PM

I dont see anything like that with the new battery. I will try metering the battery again. But it was quite high 17.3v or so. Also thought that if the stator were fried, this would contribute. Ideas? Thanks for your reply.
tr955i

DEcosse · 09-28-2008, 06:34 PM

If it is really 17V, the (new) regulator is not functioning - when you say you by-passed it, how did you do that? Did you follow the instructions explicitly?

tr955i · 10-05-2008, 12:20 PM

Yes. I even used the same color wire, large gauge as recommended with fuse. The pictorial was very helpful. I ordered a stator from Ricks . I made sure to follow exactly. I have seen other threads similar to this one and possibly the stator is fried. also used the meter correctly double checking and double checking. I have some time this week so I will recheck. once the stator comes in (sometime mid week) I will pull off the cover and see if it matches another thread's pictorial on what a good and fried stators look like. Thanks for the comments.

triumphtimes · 10-05-2008, 01:42 PM

Give an update on the Rick's stator. I ordered one for my 02 tiger and the connector was wrong and the stator was physically different. I called him and he said they wrap it with more winds so the output is the same as the OEM. I ended up cutting off the old connector and soldered it to the new stator instead of sending it back and it works just fine. Though the daytona and tiger's are probably different, don't panic if it isn't identical. Also follow Decosse' advice he is pretty darn good with electical stuff.

TT

tr955i · 10-06-2008, 10:56 AM

Decossi, thanx. The regulator bypass w/ larger gauge wire/fuse was pretty difficult to mess up with the pictorials on this site - which I am grateful for. when I turned the engine over after replacing the battery and regulator, it seemed to be charging the way it should (the meter read 13.4 after the start then started to increase). Then after the display lights/temp gauge read ready to ride, I revved the engine up to 5000rpm. Then the meter started to climb past 14.2 and eventually I got worried as it reached 17.2-17.3 so I turned the engine off. I should have the stator sometime mid week this week and will write what I see. Any suggestions on where the stator is located on the 955i? I see other threads similar to this and will follow the writing to do it but not sure where its at. thankx for the help.

DEcosse · 10-07-2008, 04:29 AM

If it goes over 17 then there is definitely a regulator fault, regardless of what the stator is doing. The very purpose of the regulator (it 'regulates' the voltage within limits) is to NOT allow the output dc voltage to climb when the stator output rises (normal) with increased engine rpm.
In other words - by nature of way it works normally, the stator AC output Voltage will rise as the engine rpm increases - it will continue to rise all the way to peak engine rpm.
The Rectifier/ regulator with its double-barrel name performs two functions: the first - rectifier - converts the AC output of the Stator to DC volts - if 'UN-regulated' the DC volts would also climb proportionally to engine rpm.
But that is where the second function of the Rectifier/Regulator - the Regulator - comes in. The Regulator's job is to stop the voltage rising over a certain threshold even if the stator is trying to drive it higher. It does this by 'shunting' current to ground (short circuit effectively) in a series of pulses; this controlled operation is called regulation. The limit is going to be 15V absolute max and more typically 14.5 or so.
If the output rises about this value then it absolutely is NOT regulating.
Failures of the regulator where they simply don't regulate and allow full voltage to pass are rare (but not impossible) - much more likely to be short or open circuit, neither or which would give the symptom you have. It still sounds almost like you maybe wired it incorrectly?

The stator is inside the left crancase cover - whether or not it has its own problems, have nothing to do with the lack of regulation causing battery volts to go to 17V.

tr955i · 10-07-2008, 07:15 AM

thanx DEcosse. I will check to see if wired correctly, short (which is probably the issue) or open circuit etc.

tr955i · 10-10-2008, 07:59 AM

Update on Overcharging battery

Rick's Motorsport Electrics, Inc - New Stator part# 21-002 $140 includes shipping from NH to VA. - good product so far. Removing old and replacing with new was actually pretty easy...30-40 min going really slow as not to screw anything up. The new stator fit easily and after removing cover, removing old stator (which looked like all the photos of a fried stator) placed the new one it, aligned the bolt holes and fed the wire housing/placed the rubber grommet. I used gasket sealer around the rubber grommet. Bolted it back on and voila. Works. No oil leaks and was a straight forward operation. Be sure to not rap fingers around cover when you put it back on - the magnetic force will pinch your fingers...

ElectroSport Industries - ordered new regulator removed old, put alum heat sink plate over mounting holes and then mounted new regulator. Battery was charging well at idle for 1-3 mintues then once the temp came up on dash, I revved engine to 3-4krpms and battery quickly jumped to 17+v - I immediately shut it off. I checked all wires between stator/regulator/battery as DEcosse recommended. No shorts or grounds. I removed new regulator and replaced with old one. Same response at idle. But soon the battery tester showed a decline to battery. slowly dropping from 13.6+-v...but I was glad to see that it was not increasing. So my deduction is that the old regulator is bad or working intermittently at best and the new one from Electrosport is bad. Called them yesterday and they said they would return it and send a new one. I will post when I get the new one in.

*in an effort to monitor the voltage to the battery from the stator & regulator, I mounted a voltage meter to just below the dash...auto zone. This is temporary so no new screw holes...just used a nearby bolt to mount the meter. The meter is about 1-2 inches in diam.