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**Divya Sharan** · 03-06-2016, 09:09 PM

Re: Yamaha R15 Battery and electrical issues

Query approved!

Do you ride enough (when not touring) to keep the battery charged? Also, using the headlamps when the bike isn't running would deplete the battery.

**stefanm** · 03-06-2016, 11:07 PM

Re: Yamaha R15 Battery and electrical issues

First off, you'll need a multi meter to diagnose electrical faults, secondly you should check all ground points (not just the battery terminal)

Other things you need to mention clearly;

1) Any electrical mods, led's etc. are you running both headlights in low beam?
2) How well do you know your way around the bike components?
3) Can you make the repairs on your own or do you require the in/abilities of a chimpanzee?

FYI, I'm running dual bixenon projectors in both high and low beam, I have DRL's and full LED's for turn signals and parking lights to get this all to run perfectly I have a 9 AMP battery (5 amp, will suffice) rewound stator coil (from FM bobisbacktorock aka Motodigiteks on Facebook) KTM Rectifier, I also have LED spot lights for the pass function when the HID's are off, this prevents the HID's from firing up, which would kill the battery when using the flash repeatedly, relays are used to take care of the switching. It works like this;
1) lights off, led spots engaged for pass/flash
2) pilots on/drl's on, led spots engaged for pass/flash
3) Headlights on, led spots disengaged, drls and pilots off (to conserve electrical consumption)

I have also modded my relay to flash at the correct rate, these are available on amazon and ebay readily these days. My headlight set up cost me around 25k, labour was free (DIY) I definitely wouldn't ride any bike at night without a similar set up.

Hope this helps.

**taufique** · 03-06-2016, 11:57 PM

Re: Yamaha R15 Battery and electrical issues

Originally posted by Divya Sharan View Post

Query approved!

Do you ride enough (when not touring) to keep the battery charged? Also, using the headlamps when the bike isn't running would deplete the battery.

Yes Divya i ride sufficeintly when not touring,and i donot use head lights when not running the bike.

**taufique** · 03-07-2016, 08:04 AM

Re: Yamaha R15 Battery and electrical issues

Originally posted by stefanm View Post

First off, you'll need a multi meter to diagnose electrical faults, secondly you should check all ground points (not just the battery terminal)

Other things you need to mention clearly;

1) Any electrical mods, led's etc. are you running both headlights in low beam?
2) How well do you know your way around the bike components?
3) Can you make the repairs on your own or do you require the in/abilities of a chimpanzee?

FYI, I'm running dual bixenon projectors in both high and low beam, I have DRL's and full LED's for turn signals and parking lights to get this all to run perfectly I have a 9 AMP battery (5 amp, will suffice) rewound stator coil (from FM bobisbacktorock aka Motodigiteks on Facebook) KTM Rectifier, I also have LED spot lights for the pass function when the HID's are off, this prevents the HID's from firing up, which would kill the battery when using the flash repeatedly, relays are used to take care of the switching. It works like this;
1) lights off, led spots engaged for pass/flash
2) pilots on/drl's on, led spots engaged for pass/flash
3) Headlights on, led spots disengaged, drls and pilots off (to conserve electrical consumption)

I have also modded my relay to flash at the correct rate, these are available on amazon and ebay readily these days. My headlight set up cost me around 25k, labour was free (DIY) I definitely wouldn't ride any bike at night without a similar set up.

Hope this helps.

points noted

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Originally posted by taufique View Post

points noted

no modification,stock lights

**Divya Sharan** · 03-07-2016, 12:25 PM

Re: Yamaha R15 Battery and electrical issues

Originally posted by taufique View Post

points noted

no modification,stock lights

Probably, it's an earth issue. The circuit has a short somewhere.

**rreneav1987** · 03-07-2016, 01:10 PM

Re: Yamaha R15 Battery and electrical issues

I feel this is an issue with the Stator plate.. Your battery is not getting the charge it requires.. Instead of charging, it is getting discharged.. I had faced the same issue with my ZMR..

**taufique** · 03-07-2016, 06:09 PM

Re: Yamaha R15 Battery and electrical issues

Originally posted by rreneav1987 View Post

I feel this is an issue with the Stator plate.. Your battery is not getting the charge it requires.. Instead of charging, it is getting discharged.. I had faced the same issue with my ZMR..

acha i see

**stefanm** · 03-07-2016, 06:20 PM

Re: Yamaha R15 Battery and electrical issues

Also check if any wires have been chewed by rats, found a mouse living under my seat last month.

**rreneav1987** · 03-07-2016, 06:22 PM

Re: Yamaha R15 Battery and electrical issues

Originally posted by taufique View Post

acha i see

I believe my bike suffered with faulty Stator plate/coil from day 1.. I faced the same issue as you.. I didn't realize the issue was with the Stator coil.. Instead, I changed the battery 3 times, the rectifier once, then even moved to a bigger battery.. still I faced the same issue. Finally managed to find the culprit after 5 long years..

in ZMR, the multimeter reading of the battery at about 3K RPM is ~14.5 Volts. but I had to raise the RPM reading to 7K RPM and that too the charge was around ~12.7 Volts.. The guys at SVC tried to push me away saying everything is fine.. Then it struck me.. I asked them to show the reading of a Passion pro and the charge on the passion was way high than my bike at slight increase in throttle..

I suggest you do the same using multi meter and check the charge on increasing the throttle..

Quoting an old post by our psr sir which helped me.

Originally posted by psr View Post

If the Bike is able to start with push start, and runs normally with headlight, horn(S),turn indicator etc., without showing any electrical problem, then it is the battery...
to Trouble shoot do the following..
1. Check battery Voltage when engine is off, and in the morning before starting....it should be 12.4 to 12.9 Volts DC.
2. Start engine and measure the voltage across the battery...it should be 14.2to 14.8 Volts.....if it is above 14.8 ie., 15 volts, then the battery is suspect.
3. Switch on head light , when engine is running at idle,and check batery Voltage...If it dips to 12. then battery is suspect...on revving engine to 3,000 RPM, if the voltage increases this further confirms it.
4. If the Voltage does not come up to 14 Volts at Idle RPM or when RPM is increased to 3,000 RPM ,then the RR unit connections to be checked...and if it is ok suspect RR defect or stator coil having shorting turns...

If the battery is sealed Lead Acid Type, and not AGM type, then the specific gravity of the Electrolyte will show if any of the cell is defective...the sealing is temporary and the battery check guys will know how to do the job..

Hope this helps

Cheers,
Reneav J

**taufique** · 03-08-2016, 09:15 AM

Re: Yamaha R15 Battery and electrical issues

Originally posted by rreneav1987 View Post

I believe my bike suffered with faulty Stator plate/coil from day 1.. I faced the same issue as you.. I didn't realize the issue was with the Stator coil.. Instead, I changed the battery 3 times, the rectifier once, then even moved to a bigger battery.. still I faced the same issue. Finally managed to find the culprit after 5 long years..

in ZMR, the multimeter reading of the battery at about 3K RPM is ~14.5 Volts. but I had to raise the RPM reading to 7K RPM and that too the charge was around ~12.7 Volts.. The guys at SVC tried to push me away saying everything is fine.. Then it struck me.. I asked them to show the reading of a Passion pro and the charge on the passion was way high than my bike at slight increase in throttle..

I suggest you do the same using multi meter and check the charge on increasing the throttle..

Quoting an old post by our psr sir which helped me.

Hope this helps

Cheers,
Reneav J

Yes your problem matches with me completely,and lets see the main culprit mathches with you or not.I have also changed thrice the battery one rectifier.

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Originally posted by Divya Sharan View Post

Probably, it's an earth issue. The circuit has a short somewhere.

Dekhta hoon

----consecutive posts auto-merged-----

Originally posted by stefanm View Post

Also check if any wires have been chewed by rats, found a mouse living under my seat last month.

yeah this could happen also as the garage where the bike is parked has lots of rats

**rreneav1987** · 03-10-2016, 10:40 AM

Re: Yamaha R15 Battery and electrical issues

Originally posted by taufique View Post

Yes your problem matches with me completely,and lets see the main culprit mathches with you or not.I have also changed thrice the battery one rectifier.

----consecutive posts auto-merged-----

Dekhta hoon

----consecutive posts auto-merged-----

yeah this could happen also as the garage where the bike is parked has lots of rats

Any updates on the issue? Is it fixed? What was the culprit?

**taufique** · 03-10-2016, 08:29 PM

Re: Yamaha R15 Battery and electrical issues

Originally posted by rreneav1987 View Post

Any updates on the issue? Is it fixed? What was the culprit?

bro i had given the bike for 2 days in a yamaha showroom,the mechanic checked all wire cables,charging points,rectifier,regulator,etc and is telling that there is an issue with the battery and every things are fine.Now the thinh is it is the 3rd amaron battery iam going to change under warranty and does amaron batteries are useless(can't believe this)or still some problem persists.

**rreneav1987** · 03-10-2016, 08:31 PM

Re: Yamaha R15 Battery and electrical issues

Originally posted by taufique View Post

bro i had given the bike for 2 days in a yamaha showroom,the mechanic checked all wire cables,charging points,rectifier,regulator,etc and is telling that there is an issue with the battery and every things are fine.Now the thinh is it is the 3rd amaron battery iam going to change under warranty and does amaron batteries are useless(can't believe this)or still some problem persists.

Can you please do the test I mentioned? That will help you find out what the culprit is..

**taufique** · 03-16-2016, 11:44 PM

Re: Yamaha R15 Battery and electrical issues

i had gone to amaron dealer,there they kept the battery for 2 days and charged it and checked it and told that its perfect.Then i went straight to yamaha showroom and told the mechanic that there nothing wrong with the battery plz check the bike properly and then he checked anfd found the coil plate need to be changed,by putting another bike coil with that of mine found the voltage 14+ but with the defective one its shows less than 14 volts.So i guess i have found the real culprit now.

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Yamaha R15 Battery and electrical issues

Yamaha R15 Battery and electrical issues

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