3 phase stator

ron1978 · Nov 9th, 2009, 10:53 PM

10 years in may

i worked 5 years for lamb greys harbour, making recycling paper mill machines, from raw metal , to fully funtional, i loved it but job went to mexico, so i went into the motor shops field, i also do field balancing of single and duel plane fans, of and size.

Hoople · Nov 9th, 2009, 11:03 PM

Quote:

Originally Posted by ron1978

i also do field balancing of single and duel plane fans, of and size.

Very Interesting. I have been fascinated by balancing equipment for years and years. It is a science in itself.

Sorry Atoka. I am not trying to Hi-jack your thread. Fire away if you need help.

atoka1960 · Nov 9th, 2009, 11:38 PM

yea well i really would like to know the ac output on a 2008 efi softail stator

Hoople · Nov 10th, 2009, 08:16 AM

It is not as simple as just a number or value. You have 3 outputs coming out of the stator all at the same time that are 120 degrees out of phase with each other. You also have RPM injected into the equation and on top of that would you like an RMS or Peak value. If RMS, you would have to use a True RMS meter because the value you read will depend on the RPM of the engine. Then there is the question of wanting the values loaded and by how much. If loaded, what load value are you going to use. If your using the regulator in the bike, what if one of the regulator outputs happen to be shorted, then what. The value you read will be near zero and your going to think the stator is bad when it isn't. To really make any sense of what you see, you will need a scope to view the sine wave.
To truly test the stator you would have to "Ring" the 3 coils in the absence of the rotor. That will tell you if you have a shorted turn. Remember, only the crests of the waveforms charge the battery, not the bulk of the waveform itself. How will you measure that?
There is no simple magic number you can just read. If there was, the service manual would go into it.
Maybe someone else has the number your looking for but I don't see anything that is practical other than the ohm meter & smell test.

gs34 · Nov 10th, 2009, 08:25 AM

I'm glad you're here Hoople. You have provided some excellent explanations on the workings of the electrics we see most.
It's one thing to know them, but you seem to have a gift for being able to explain and "teach" in terms that we can understand.
My hat is off to you....Thanks

Hoople · Nov 10th, 2009, 08:40 AM

Don't believe a word I say. I make this stuff up on the fly.

Just kidding. Thanks for the kind words.

glider · Nov 10th, 2009, 09:05 AM

Nice work Hoop, thanks. It's nice to have members that can solve the problems for others.

ron1978 · Nov 10th, 2009, 06:10 PM

look at close to bottom of page to see how to check stator and regulator.
My Motorcycle Won't Start!! What Now?

The Stator can be checked with the Ohms function on your meter. Locate and remove the plug for the stator on the front of the engine block. You will see two or three pins inside.
Set the meter for low Ohms, and measure the continuity between these pins. 5 Ohms or less is what you are looking for here. Set the meter to the highest setting. With 1 lead attached to a metal part of bike check for continuity to each pin. You meter should read infinite, or no continuity. If these tests check out then your stator is fine. If there is a fault in any of these tests, then see your dealer
The regulator is the easiest of all to check. The regulator is made of solid state electronics and can't be opened. Replace the regulator if everything else on the charging system checks out or if there is an overcharging situation.
On most Harley's you will not know if the charging system is beginning to fail. The evidence shows up when you have dim lights or she just won't start. There are aftermarket accessories that you can install on your bike that will tell you the current state of the charging system.
Save yourself some bucks here!! With a simple multimeter available from any Electronics parts store you can troubleshoot your charging system and check your battery and most likely repair any problems yourself.

Nov 9th, 2009, 10:53 PM	#11
ron1978 Contributor$ Ride: Road King Classic Join Date: Sep 1st, 2009 Location: mississippi Posts: 250 My Mood:	10 years in may i worked 5 years for lamb greys harbour, making recycling paper mill machines, from raw metal , to fully funtional, i loved it but job went to mexico, so i went into the motor shops field, i also do field balancing of single and duel plane fans, of and size. __________________ 2005 RoadKing Classic / Touring Package, all the trimming, tons of chrome. stage 1/ vance & hines Duals Last edited by R. Lewis; Nov 9th, 2009 at 10:59 PM. Reason: condense info. shared

Nov 9th, 2009, 11:38 PM	#13
atoka1960 New Family Ride: dyna 1997 superglide kustm Join Date: Nov 4th, 2009 Posts: 7	Re: 3 phase stator yea well i really would like to know the ac output on a 2008 efi softail stator

Nov 10th, 2009, 08:16 AM	#14
Hoople Contributor$ Ride: 2009 Dyna Low Join Date: Aug 16th, 2009 Posts: 1,077	Re: 3 phase stator It is not as simple as just a number or value. You have 3 outputs coming out of the stator all at the same time that are 120 degrees out of phase with each other. You also have RPM injected into the equation and on top of that would you like an RMS or Peak value. If RMS, you would have to use a True RMS meter because the value you read will depend on the RPM of the engine. Then there is the question of wanting the values loaded and by how much. If loaded, what load value are you going to use. If your using the regulator in the bike, what if one of the regulator outputs happen to be shorted, then what. The value you read will be near zero and your going to think the stator is bad when it isn't. To really make any sense of what you see, you will need a scope to view the sine wave. To truly test the stator you would have to "Ring" the 3 coils in the absence of the rotor. That will tell you if you have a shorted turn. Remember, only the crests of the waveforms charge the battery, not the bulk of the waveform itself. How will you measure that? There is no simple magic number you can just read. If there was, the service manual would go into it. Maybe someone else has the number your looking for but I don't see anything that is practical other than the ohm meter & smell test.

Nov 10th, 2009, 08:25 AM	#15
gs34 Contributor$ Ride: 2007 FLHTC Join Date: Apr 25th, 2008 Location: Pennsylvania Posts: 642	Re: 3 phase stator I'm glad you're here Hoople. You have provided some excellent explanations on the workings of the electrics we see most. It's one thing to know them, but you seem to have a gift for being able to explain and "teach" in terms that we can understand. My hat is off to you....Thanks

Nov 10th, 2009, 08:40 AM	#16
Hoople Contributor$ Ride: 2009 Dyna Low Join Date: Aug 16th, 2009 Posts: 1,077	Re: 3 phase stator Don't believe a word I say. I make this stuff up on the fly. Just kidding. Thanks for the kind words.

Nov 10th, 2009, 09:05 AM	#17
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 21,059 My Mood:	Re: 3 phase stator Nice work Hoop, thanks. It's nice to have members that can solve the problems for others. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Nov 10th, 2009, 06:10 PM	#18
ron1978 Contributor$ Ride: Road King Classic Join Date: Sep 1st, 2009 Location: mississippi Posts: 250 My Mood:	here is a self help page on checking problems look at close to bottom of page to see how to check stator and regulator. My Motorcycle Won't Start!! What Now? The Stator can be checked with the Ohms function on your meter. Locate and remove the plug for the stator on the front of the engine block. You will see two or three pins inside. Set the meter for low Ohms, and measure the continuity between these pins. 5 Ohms or less is what you are looking for here. Set the meter to the highest setting. With 1 lead attached to a metal part of bike check for continuity to each pin. You meter should read infinite, or no continuity. If these tests check out then your stator is fine. If there is a fault in any of these tests, then see your dealer The regulator is the easiest of all to check. The regulator is made of solid state electronics and can't be opened. Replace the regulator if everything else on the charging system checks out or if there is an overcharging situation. On most Harley's you will not know if the charging system is beginning to fail. The evidence shows up when you have dim lights or she just won't start. There are aftermarket accessories that you can install on your bike that will tell you the current state of the charging system. Save yourself some bucks here!! With a simple multimeter available from any Electronics parts store you can troubleshoot your charging system and check your battery and most likely repair any problems yourself. __________________ 2005 RoadKing Classic / Touring Package, all the trimming, tons of chrome. stage 1/ vance & hines Duals Last edited by glider; Nov 10th, 2009 at 06:29 PM.

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