ninjette.org

Go Back   ninjette.org > 2013 - 2017 Ninja 300 > 2013 - 2017 Ninja 300 Tech Talk

Reply
 
Thread Tools
Old April 17th, 2017, 10:17 AM   #1
psykown
ninjette.org member
 
Name: Joe
Location: Lancaster CA
Join Date: Dec 2013

Motorcycle(s): 2007 Ninja 250 "sold" 2014 ninja 300 "Gold" 2000 DRZ400S (Sold the POS) K7 GSXR600 (Also POS...see a pattern?

Posts: 207
2014 stator issues?

So I have a 2014 ninja 300 with abs and this is the second time the stator has died on on me, both times at almost exactly 20k miles. I was curious how many others are having this issue and if anyone might know why?

@rgx107 you mentioned yours was at 56k km ~34k miles

Anyone else withave high miles and this issue?
__________________________________________________
psykown is offline   Reply With Quote




Old April 19th, 2017, 02:48 AM   #2
NotaVillian
ninjette.org newbie
 
Name: Anthony
Location: Gold Coast, Australia
Join Date: Apr 2017

Motorcycle(s): 2014 Ninja 300 ABS, sold 2008 ZX6R, sold 2012 KLX-450R

Posts: 5
I'm having the same issue at the moment, same year, same model. Mine has 25,000km on it.
I've tested the regulator/rectifier, and there is a definite problem there, though whether or not it's the cause or a symptom.
I've discussed this problem with an auto-elecky, and he has suggested that the stator/magnets need to be receiving battery power in order for it to generate the 35v. I'm curious as to whether or not the battery power has to go through the rectifier first, and the dodgy rectifier is preventing any power reaching stator...

I haven't had a chance to do any further tests just yet, but thought I'd pass along my queries and hope they help!

Let me know if you have any breakthroughs yourself, as I'm at a loss at the moment
NotaVillian is offline   Reply With Quote


Old April 30th, 2017, 04:23 PM   #3
psykown
ninjette.org member
 
Name: Joe
Location: Lancaster CA
Join Date: Dec 2013

Motorcycle(s): 2007 Ninja 250 "sold" 2014 ninja 300 "Gold" 2000 DRZ400S (Sold the POS) K7 GSXR600 (Also POS...see a pattern?

Posts: 207
Well it was definitely my stator that was toast, had the whole thing burned up with an exposed wire. luckily it is a pretty easy swap! found a used one for 250 or so.
__________________________________________________
psykown is offline   Reply With Quote


Old April 30th, 2017, 04:25 PM   #4
psykown
ninjette.org member
 
Name: Joe
Location: Lancaster CA
Join Date: Dec 2013

Motorcycle(s): 2007 Ninja 250 "sold" 2014 ninja 300 "Gold" 2000 DRZ400S (Sold the POS) K7 GSXR600 (Also POS...see a pattern?

Posts: 207
Quote:
Originally Posted by NotaVillian View Post
I'm having the same issue at the moment, same year, same model. Mine has 25,000km on it.
I've tested the regulator/rectifier, and there is a definite problem there, though whether or not it's the cause or a symptom.
I've discussed this problem with an auto-elecky, and he has suggested that the stator/magnets need to be receiving battery power in order for it to generate the 35v. I'm curious as to whether or not the battery power has to go through the rectifier first, and the dodgy rectifier is preventing any power reaching stator...

I haven't had a chance to do any further tests just yet, but thought I'd pass along my queries and hope they help!

Let me know if you have any breakthroughs yourself, as I'm at a loss at the moment
My understanding is that the power route is as follows;

stator>R/R>battery>rest of the bike(ignition ecu etc)

I am not the greatest with electricity though so take this with a grain of salt.
__________________________________________________
psykown is offline   Reply With Quote


Old April 30th, 2017, 06:19 PM   #5
NotaVillian
ninjette.org newbie
 
Name: Anthony
Location: Gold Coast, Australia
Join Date: Apr 2017

Motorcycle(s): 2014 Ninja 300 ABS, sold 2008 ZX6R, sold 2012 KLX-450R

Posts: 5
That's great, thank you.

As it turns out, I pulled my stator out too and one of the wires is fried! I'm finding that to get it re-wound is over $300, and a new one is over $600!
You wouldn't be able to point me in the direction that you got yours from, would you?
NotaVillian is offline   Reply With Quote


Old April 30th, 2017, 06:29 PM   #6
psykown
ninjette.org member
 
Name: Joe
Location: Lancaster CA
Join Date: Dec 2013

Motorcycle(s): 2007 Ninja 250 "sold" 2014 ninja 300 "Gold" 2000 DRZ400S (Sold the POS) K7 GSXR600 (Also POS...see a pattern?

Posts: 207
Quote:
Originally Posted by NotaVillian View Post
That's great, thank you.

As it turns out, I pulled my stator out too and one of the wires is fried! I'm finding that to get it re-wound is over $300, and a new one is over $600!
You wouldn't be able to point me in the direction that you got yours from, would you?
I got my new stator from ebay it had about 2500 miles on it, if you go to ricksmotor sports they rewound my original stator for $250 I believe. A new OEM one should run you about $400, 600 is pretty pricey!!!
__________________________________________________
psykown is offline   Reply With Quote


Old April 30th, 2017, 06:34 PM   #7
NotaVillian
ninjette.org newbie
 
Name: Anthony
Location: Gold Coast, Australia
Join Date: Apr 2017

Motorcycle(s): 2014 Ninja 300 ABS, sold 2008 ZX6R, sold 2012 KLX-450R

Posts: 5
Ahh, I didn't notice that you were over in the USA! I'm in Australia, and everything seems to be more expensive here! I might look on US EBay and see what I can find.
Thanks for the advice, and let me know how your new stator goes!
NotaVillian is offline   Reply With Quote


Old April 30th, 2017, 06:38 PM   #8
psykown
ninjette.org member
 
Name: Joe
Location: Lancaster CA
Join Date: Dec 2013

Motorcycle(s): 2007 Ninja 250 "sold" 2014 ninja 300 "Gold" 2000 DRZ400S (Sold the POS) K7 GSXR600 (Also POS...see a pattern?

Posts: 207
Oh shoot, my bad! idk will ricks ship to and from australia? You may just have a little longer of a down time.
__________________________________________________
psykown is offline   Reply With Quote


Old April 30th, 2017, 06:39 PM   #9
psykown
ninjette.org member
 
Name: Joe
Location: Lancaster CA
Join Date: Dec 2013

Motorcycle(s): 2007 Ninja 250 "sold" 2014 ninja 300 "Gold" 2000 DRZ400S (Sold the POS) K7 GSXR600 (Also POS...see a pattern?

Posts: 207
Maybe you could try an add in the selling forum? someone may get it to you a bit cheaper in there, they aren't so bad here
__________________________________________________
psykown is offline   Reply With Quote


Old April 30th, 2017, 08:42 PM   #10
Triple Jim
Guy Who Enjoys Riding
 
Triple Jim's Avatar
 
Name: Jim
Location: North Central North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
Look for companies that rebuild electric motors. I'm sure a motorsports company would sub the stator out of one of those. Guys I know who have found rebuilders directly pay around $200-ish.

Of course check out the charging system to be sure something else isn't causing the stator to overheat.
Triple Jim is offline   Reply With Quote


Old May 1st, 2017, 05:07 AM   #11
ducatiman
ninjette.org certified postwhore
 
ducatiman's Avatar
 
Name: Gordon
Location: new york
Join Date: Sep 2009

Motorcycle(s): '95 DUCATI 900SS/SP '98 HONDA VFR800 '07 DUCATI SS800 '19 HONDA CBR650R

Posts: A lot.
MOTM - Nov '18, Mar '17
Is Kawasaki still using the old, toaster oven shunt type regulators on the 300?
__________________________________________________
Gordon
Custom Carb Service

www.customcarbservices.com
ducatiman is offline   Reply With Quote


Old May 1st, 2017, 05:16 AM   #12
psykown
ninjette.org member
 
Name: Joe
Location: Lancaster CA
Join Date: Dec 2013

Motorcycle(s): 2007 Ninja 250 "sold" 2014 ninja 300 "Gold" 2000 DRZ400S (Sold the POS) K7 GSXR600 (Also POS...see a pattern?

Posts: 207
Something like this what you mean? If so yes 👍
Attached Images
File Type: jpg Screenshot_2017-05-01-08-14-40.jpg (52.9 KB, 11 views)
__________________________________________________
psykown is offline   Reply With Quote


Old November 13th, 2017, 10:10 PM   #13
john pierson
ninjette.org member
 
john pierson's Avatar
 
Name: john
Location: Champlin,Mn
Join Date: Sep 2016

Motorcycle(s): '00 SV650,'02 EX250,'15 EX300

Posts: 85
I know it is months later but

I started hard wiring that is eliminating the regulator plug on my bikes back in the 90s. The first was a gs1000 after it failed and I read the "Stator Papers" on the GS forum. Everything after that including my '02 Futura(some of those even caught fire) got the mod. There also was a writeup somewhere about a superior type of regulation system that wasn't used due to cost difference. I'll be modding the 300 over the winter and checking to see if I've done the others already-can't remember! The factories continuing building these flaws into their bikes smacks of Detroit-especially GM! My'95 Camry is pushing 330K!!
__________________________________________________
GUZZI JOHN
john pierson is offline   Reply With Quote


Old November 14th, 2017, 06:12 AM   #14
ducatiman
ninjette.org certified postwhore
 
ducatiman's Avatar
 
Name: Gordon
Location: new york
Join Date: Sep 2009

Motorcycle(s): '95 DUCATI 900SS/SP '98 HONDA VFR800 '07 DUCATI SS800 '19 HONDA CBR650R

Posts: A lot.
MOTM - Nov '18, Mar '17
Quote:
Originally Posted by psykown View Post
Something like this what you mean? If so yes ��
if Kaw still using old style shunt, I'd suggest upgrading to a mosfet type RR, wiring direct from stator, eliminating the mid connector


At one time Honda VFR had a chronic problem with common occurring burning connectors and charge system failures. When I acquired, my own RR heated up smokin' hot within a minute or 2 from cold startup. Seeing the writing on the wall....prior to any failure I sourced and installed an older ZX10 Shindengen mosfet regulator....cool running and dead reliable...that was 7 full seasons ago, no hiccups since.

Added a LED type voltage monitor as well for instant notice of any issues.

Worked so well, I did the same on my older Ducati 900SS, again dead reliable since.
Attached Images
File Type: jpg mosfet1.JPG (101.0 KB, 5 views)
__________________________________________________
Gordon
Custom Carb Service

www.customcarbservices.com
ducatiman is offline   Reply With Quote


Old November 14th, 2017, 09:22 AM   #15
john pierson
ninjette.org member
 
john pierson's Avatar
 
Name: john
Location: Champlin,Mn
Join Date: Sep 2016

Motorcycle(s): '00 SV650,'02 EX250,'15 EX300

Posts: 85
AH SO

Is that the brand name or circuit type? It may be the better unit I read about. Any info online as to what bikes used those? If I remember right the old GS system pumped all excess power back into windings so they had to dissipate lots of heat leading to insulation breakdown. Do you happen to know what our Ninjas and the SVs use? Thanks,GJ oops just noticed you said mofset/mosfet-i think that was system name.
__________________________________________________
GUZZI JOHN
john pierson is offline   Reply With Quote


Old November 14th, 2017, 10:07 AM   #16
ducatiman
ninjette.org certified postwhore
 
ducatiman's Avatar
 
Name: Gordon
Location: new york
Join Date: Sep 2009

Motorcycle(s): '95 DUCATI 900SS/SP '98 HONDA VFR800 '07 DUCATI SS800 '19 HONDA CBR650R

Posts: A lot.
MOTM - Nov '18, Mar '17
Shindengen is the Japanese manufacturer. It is indeed a Mosfet (though still a shunt type) The more modern transistors run much much cooler....the old EX500 regulators went UNCHANGED from late 80's design to when they were discontinued in '06.,,,and as they aged, they frequently cooked themselves from inside/out.

the Shindengen Mosfet I used back then was their model FH010, it was OEM on the ZX10 from 04 through 06 or 07? .....nowadays there are later model FH020. I still use FH010 in EX500 applications....incredibly reliable, affordable and available. Can be used on EX250 and 500, though some wiring trickery must occur. I custom build an RR adaptor harness which plugs in to the bikes existing harness....that is what is pictured above. I think member Ghostt is running an FH010 on his 250.

Not sure what RR is supplied on the 300, though.

The latest and greatest is now the "SERIES" type regulator. Google that, not a shunt and much more $$$.
__________________________________________________
Gordon
Custom Carb Service

www.customcarbservices.com
ducatiman is offline   Reply With Quote


Old November 14th, 2017, 02:12 PM   #17
Triple Jim
Guy Who Enjoys Riding
 
Triple Jim's Avatar
 
Name: Jim
Location: North Central North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
Quote:
Originally Posted by ducatiman View Post
The latest and greatest is now the "SERIES" type regulator. Google that, not a shunt and much more $$$.
They're really not new, and with PM alternators, they can cause voltage spikes that the alternator coils aren't designed for. Permanent magnet alternators don't mind being shunted, and in fact run cooler and with less drag when dead shorted than when putting out their design voltage. In other words, you're not going to do better than a well made shunt regulator on our PM alternators.

Last futzed with by Triple Jim; November 14th, 2017 at 03:49 PM.
Triple Jim is offline   Reply With Quote


Old November 15th, 2017, 07:29 AM   #18
john pierson
ninjette.org member
 
john pierson's Avatar
 
Name: john
Location: Champlin,Mn
Join Date: Sep 2016

Motorcycle(s): '00 SV650,'02 EX250,'15 EX300

Posts: 85
I tripped again!!

No not acid-more like stubbing ones toes. Over on SV the first gen mod section (first topic in fact)regards rrs. It calls out an FH008 as perfect for early SVs. As it is smaller and put out 35a it might be right for Ninjettes. My SV is at 66k so mayhap it get this mod. Have to look over the Winter as a PO may have done some such or maybe several stators.
__________________________________________________
GUZZI JOHN
john pierson is offline   Reply With Quote


Old April 10th, 2020, 10:48 AM   #19
Topaz
ninjette.org member
 
Topaz's Avatar
 
Name: Topaz
Location: South Florida
Join Date: Mar 2017

Motorcycle(s): 2013 Ninja 300

Posts: 152
2013 N300 stator replace.

Hello, it's my turn to replace the stator on my N300. Looking for advice and opinions.

My bike is a 2013 N300 at 15k miles.

I went riding, ten minutes later, the red battery light came on, and ten minutes later the bike died riding at highway speed.
Back home, I checked the battery and wasn't good, so I replaced it. It was three years old.
Now, with a good battery, I checked the stator. Continuity seems to be good, but AC voltage output reads very low. Between 5V and 10V at 4k RPM.
Also, voltage at the battery reads low as well. It doesn't reach 13v at 4000+ RPM's.

The R/R doesn't measure well either, but, from what I've read, that may be because my multimeter is a cheap one.
Both the service manual and what I've found on line recommend to use only a good multimeter to check the R/R.


So now I'm looking for stators and found that a US company called ElectroSports make the stator for the N300.
Has anyone had experience with this? They go for 159 + tax and shpping.
here is the link:
https://www.electrosport.com/product...ki-ninja-ex300

OEM brand new goes for $400+ and take off's from eBay go for around $140.


Also, the Kawi liquid gasket that goes around the rubber grommet where the wires come out of the stator cover seems to be very expensive too.
Is there a good aftermarket product to use instead of the sotck one?


Any advice?
Thanks
Topaz is offline   Reply With Quote


Old April 10th, 2020, 07:58 PM   #20
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: SF East Bay
Join Date: Dec 2011

Motorcycle(s): CB125T, Ninja250R racer,Ninja250R street EX250F#1 EX250F#2 EX250E CBR250R(MC19) CBR250RR(MC22) VF500F CBR600RR

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Try Yamabond-4 for sealant... from your Yamaha dealer of course. Don't ride Ninja to close to shop, they may not sell it to you.

If so, go to Toyota and get their FIPG material. Used to seal gasket-less metal-to-metal interfaces like oil-pan to block.
DannoXYZ is offline   Reply With Quote


Old April 11th, 2020, 06:38 AM   #21
ducatiman
ninjette.org certified postwhore
 
ducatiman's Avatar
 
Name: Gordon
Location: new york
Join Date: Sep 2009

Motorcycle(s): '95 DUCATI 900SS/SP '98 HONDA VFR800 '07 DUCATI SS800 '19 HONDA CBR650R

Posts: A lot.
MOTM - Nov '18, Mar '17
Quote:
Originally Posted by Topaz View Post
I checked the stator. Continuity seems to be good, but AC voltage output reads very low. Between 5V and 10V at 4k RPM.
As you are not describing it correctly...are you actually performing a proper standalone stator output test?

stator *unplugged* from harness, bike running 4K RPM...meter set to AC volts....checking between each of the stators' 3 legs....1-2 2-3 1-3

Please post your 3 separate AC voltage readings

You need to isolate, testing stator output first...then RR and verify integrity of all wiring and connectors between ...no breaks, corrosion, resistance, blah blah.
__________________________________________________
Gordon
Custom Carb Service

www.customcarbservices.com
ducatiman is offline   Reply With Quote


1 out of 1 members found this post helpful.
Old April 11th, 2020, 07:31 AM   #22
Topaz
ninjette.org member
 
Topaz's Avatar
 
Name: Topaz
Location: South Florida
Join Date: Mar 2017

Motorcycle(s): 2013 Ninja 300

Posts: 152
Quote:
Originally Posted by ducatiman View Post
As you are not describing it correctly...are you actually performing a proper standalone stator output test?

stator *unplugged* from harness, bike running 4K RPM...meter set to AC volts....checking between each of the stators' 3 legs....1-2 2-3 1-3

Please post your 3 separate AC voltage readings

You need to isolate, testing stator output first...then RR and verify integrity of all wiring and connectors between ...no breaks, corrosion, resistance, blah blah.
Thanks for the comments, guys!


Yes, I followed the service manual instructions and did what you said.
Stator unplugged, bike running at 4k RPM's, meter reading AC voltage, and checked all three combinations on the stator plug.
In all three readings, voltage would never go higher than 5V.
When measuring the resistance between any of the three connectors to the frame, I would get 0L, so I guess the stator is not grounded.

Again, my multimeter is a $15 multimeter, but if I measure the voltage on the house wall outlet, I get 110V, so it looks like it's working.


Also, after I installed the new battery (acid on and slow charge), I checked the voltage on the battery terminals at 4k RMP's and wouldn't reach 13V.
Then, with the new battery, I went for a test ride, and after 10-15 mins, the red battery light came on. I headed back home, turned off the bike and the battery voltage had dropped to 11.8V.

The bike is 2013, garage kept, 15k miles. All wires and connectors look clean and in very good condition.
I'm actually surprised that the stator went bad at 15k miles, but I've read on line that it was common on 2013's and 2014's N300.
Topaz is offline   Reply With Quote


Old April 12th, 2020, 08:57 PM   #23
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: SF East Bay
Join Date: Dec 2011

Motorcycle(s): CB125T, Ninja250R racer,Ninja250R street EX250F#1 EX250F#2 EX250E CBR250R(MC19) CBR250RR(MC22) VF500F CBR600RR

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Definitely sounds like bad stator. They fail due to insulation of magnet-wire in windings melting from heat and shorts-circuiting across to neighboring wire. This heat is caused by running stator at full-output continuously due to way charging circuit is designed.

More efficient regulation is that series-regulator ducatiman mentioned. Modern versions are much better than previous ones and only draw as much power from stator as needed for charging and running light & electronics. A lot of this design improvement comes from increased use of LED lighting and buck/boost regulators used in that market.

Series regulator reduce load on entire charging system and load on engine as well. Not uncommon to see 5-10% improvement in MPG. I'm also putting on on my race-bike as removing that kind of parasitc drag is worth couple seconds per lap.
DannoXYZ is offline   Reply With Quote


Old April 13th, 2020, 05:53 AM   #24
Triple Jim
Guy Who Enjoys Riding
 
Triple Jim's Avatar
 
Name: Jim
Location: North Central North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
Permanent magnet alternators do not suffer from overcurrent when the regulator shunts current to ground. They also do not require more engine torque to turn them when shunted. I first discovered this when testing regulators that I manufacture, using a variable speed motor driven motorcycle alternator in my bench test setup. The torque required to turn the alternator is actually least when its output is completely shorted. This is because very little electrical work is being done when the output voltage is zero and current is limited by the permanent magnet field.

Going to a series type regulator can offer some advantage, but it can also cause problems from high voltages resulting from opening the circuit when regulating, depending on the exact design of the series regulator.

https://www.ninjette.org/forums/atta...1&d=1586782685
Attached Images
File Type: jpg test_rig.jpg (82.0 KB, 9 views)

Last futzed with by Triple Jim; April 13th, 2020 at 12:34 PM.
Triple Jim is offline   Reply With Quote


Old April 13th, 2020, 12:10 PM   #25
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: SF East Bay
Join Date: Dec 2011

Motorcycle(s): CB125T, Ninja250R racer,Ninja250R street EX250F#1 EX250F#2 EX250E CBR250R(MC19) CBR250RR(MC22) VF500F CBR600RR

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Quote:
Originally Posted by Triple Jim View Post
Permanent magnet alternators do not suffer from overcurrent when the regulator shunts current to ground. They also to not require more engine torque to turn them when shunted. I first discovered this when testing regulators that I manufacture, using a variable speed motor driven motorcycle alternator in my bench test setup. The torque required to turn the alternator is actually least when its output is completely shorted. This is because very little electrical work is being done when the output voltage is zero and current is limited by the permanent magnet field.
How can output voltage be zero when engine's spinning at 4000rpms? The magnets aren't adjustable like automotive alternators.
DannoXYZ is offline   Reply With Quote


Old April 13th, 2020, 12:28 PM   #26
Triple Jim
Guy Who Enjoys Riding
 
Triple Jim's Avatar
 
Name: Jim
Location: North Central North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
Quote:
Originally Posted by DannoXYZ View Post
How can output voltage be zero when engine's spinning at 4000rpms? The magnets aren't adjustable like automotive alternators.
Shunt regulators either let all the output through, or momentarily short it all to ground, many times per second. When current is not needed the regulator simply shorts the alternator output to ground, taking its output voltage to zero. Current is limited because of the fixed field strength of the permanent magnets, so it doesn't suffer from any unusually high current from the short circuit.

This all or nothing approach is why a shunt regulator doesn't have to dissipate huge amounts of power. Note that the input to the regulator (alternator output) is what's shunted to ground, not the regulator output, which sits at battery voltage!
Triple Jim is offline   Reply With Quote


Old April 13th, 2020, 12:46 PM   #27
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: SF East Bay
Join Date: Dec 2011

Motorcycle(s): CB125T, Ninja250R racer,Ninja250R street EX250F#1 EX250F#2 EX250E CBR250R(MC19) CBR250RR(MC22) VF500F CBR600RR

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Output voltage of zero at stator output means full voltage drop before RR. Zero voltage means full-output of stators are going to ground. It’s like measuring ground-wire of light-bulb, it’s going to be zero after all power has been dissipated by bulb. More accurate to measure stator output in amps rather than voltage.

Here’s good test:

1. Measure VAC and amps output of stator @4000rpms with RR connected with no load

2. Measure VAC and amps output of stator @4000rpms with RR connected and powering headlight

Last futzed with by DannoXYZ; April 13th, 2020 at 01:48 PM.
DannoXYZ is offline   Reply With Quote


Old May 3rd, 2020, 02:28 PM   #28
john pierson
ninjette.org member
 
john pierson's Avatar
 
Name: john
Location: Champlin,Mn
Join Date: Sep 2016

Motorcycle(s): '00 SV650,'02 EX250,'15 EX300

Posts: 85
Bottom line??

What is the consensus now? Are the standard regs the issue or are the stator windings also? Winding coatings can be of varying quality/lifespan as are the reg components. Will the rev upgrade really help the windings. The discussion inferred better the ran cooler. Does that also change the operating temp of the stator? Unfortunately I can't remember if I've done anything to the older bikes as "Brainfade" plus not writing down what has been done afflicts me-74 on 15th. I do have volunteers on all of them so at least there's something to indicate deterioration.
__________________________________________________
GUZZI JOHN
john pierson is offline   Reply With Quote


Old May 3rd, 2020, 03:44 PM   #29
Topaz
ninjette.org member
 
Topaz's Avatar
 
Name: Topaz
Location: South Florida
Join Date: Mar 2017

Motorcycle(s): 2013 Ninja 300

Posts: 152
UPDATE: Got the parts and changed the stator. So far so good. Battery reading at 4k rpm's is 13.9 V, I did some rides. About 100 miles in all. No red lights on the cluster. Battery reading after ride with engine off is 12.5V

I tried to read the output of the stator at 4k RPM's but my multimeter gave 0L, which I guess it means 'reading out of range', but it doesn't have AC range as it should be automatic. Trusting this multimeter less and less. I may get a better one soon.

I was very close to pay $160+ for the Electrosport aftermarket stator when a cheap OEM take off showed up on eBay for $65 shipped so I gambled there. Not sure if it was the smarter thing. Worst fear is to loose a track day because of another burned OEM stator. Fingers crossed.

The stator cover gasket seemed to be in good condition so I kept it and so far no leaks.

The Yamaha liquid gasket worked fine too.
Topaz is offline   Reply With Quote


2 out of 2 members found this post helpful.
Old May 3rd, 2020, 04:13 PM   #30
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: SF East Bay
Join Date: Dec 2011

Motorcycle(s): CB125T, Ninja250R racer,Ninja250R street EX250F#1 EX250F#2 EX250E CBR250R(MC19) CBR250RR(MC22) VF500F CBR600RR

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Hi, good job on getting that repaired!

One useful gauge is infrared pyrometer to get temperature of stator-cover. Could be used as proxy-indicator of stator-output. Can also used at track to measure tyre-temperatures right after getting off track.

Another useful tool is to get AC clamp meter (non-contact claw), and see what kind of AC-current is flowing out of your stator.
DannoXYZ is offline   Reply With Quote


Old October 30th, 2020, 12:54 PM   #31
john pierson
ninjette.org member
 
john pierson's Avatar
 
Name: john
Location: Champlin,Mn
Join Date: Sep 2016

Motorcycle(s): '00 SV650,'02 EX250,'15 EX300

Posts: 85
Changing 3 bikes!

Did SV first then 250 with nice results. Just got 300 on work stand and am thinking tool tray is great spot to mount it. I'm impressed with these regulators and hope they last. The SV got a used stator also as the Chinese one lasted 900 miles. It was free after I complained to seller that it was much smaller than OEM and not plastic dipped as well(sent pix). Their Ebay ads are sometimes iffy as the unit was said to fit many Suzukis including mine but appears to be made for a smaller model street bike of 125-300cc perhaps.
__________________________________________________
GUZZI JOHN
john pierson is offline   Reply With Quote


Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
[RideApart] - Yamaha Issues Recall for 2014-16 WR250 Ninjette Newsbot Motorcycling News 0 November 17th, 2016 03:11 PM
[motorcycledaily.com] - Harley-Davidson Issues Voluntary Recalls of Certain 2014 Moto Ninjette Newsbot Motorcycling News 0 October 19th, 2013 03:40 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Motorcycle Safety Foundation

All times are GMT -7. The time now is 01:18 AM.


remote server monitor
Powered by vBulletin®
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Except where otherwise noted, all site contents are Copyright 2020 ninjette.org, All rights reserved.