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**SiD13** · 11-09-2012, 09:02 AM

Originally posted by stefanm View Post

What sounds do you hear whilst attempting to start?

No sounds at all its as if there is no power supply to the motor (same response like if bike is not in neutral and clutch is not pulled or as if engine kill switch is on).

**revvhard** · 11-09-2012, 10:13 AM

Originally posted by SiD13 View Post

No sounds at all its as if there is no power supply to the motor (same response like if bike is not in neutral and clutch is not pulled or as if engine kill switch is on).

next time this happens, try engaging and disengaging the killswitch a few times, if it solves the issue then u need a new killswitch assembly.

**stefanm** · 11-09-2012, 10:17 AM

Originally posted by SiD13 View Post

No sounds at all its as if there is no power supply to the motor (same response like if bike is not in neutral and clutch is not pulled or as if engine kill switch is on).

Possible causes, I guess would be possibly a defective battery or faulty relay (it's the one next to the battery, where the spare fuse is) you can try tapping the relay with the handle of a screw driver, sometimes this brings them back to life temporarily. Another thing you can try is to clean the battery terminals and connectors, poor contact can also give these symptoms. One more possibility is the self starter switch gear is faulty.

**awesomeo** · 11-09-2012, 03:22 PM

Originally posted by SiD13 View Post

Hi Guys,

Requesting your help again....

I am facing starting trouble since last 2 weeks. The nature of starting trouble is confusing and I couldn't identify the specific reason yet. Sometimes the bike will start without any fuss and while riding there is no problem. Once its switched off after riding(irrespective of ride distance be it 1 meter or 1000 meters) it fails to start again immediately. And sometimes even that problem is not faced. I tried turning on bike and leaving it like that for few minutes and turned it off and then started again (it started without any problem) to ensure that it is not a fuel pump heating up problem(like a fellow member faced and had to change pump at cost of 7500). After trying different permutations and combinations i feel like the bike starter is not activated since the system is sensing that bike is not in neutral or that clutch is disengaged while in gear. I don't have much idea about how the system identifies if the bike is in gear. Can I have your thoughts please? If anyone faced similar issues please leave your suggestions.

Your problem could be due to one of the two things: Electrical or Mechanical.

Electrical as in blown fuse, faulty relay, faulty starter coil. Mostly this is an electrical issue. If you can't hear the starter coil run, then it's an electrically issue.

Here's how you start diagnosing it:
1. Check if you hear the starter coil when you press the ignition, if no.. continue
2. Remove your seat, you'll see bunch of relays under the seat, check if any one of them gives a "tick" sound when you press ignition. If no, continue..
3. Check if your fuse is blown (unlikely because it works sometimes in your case, but still for knowledge sake)
4. Remove the relay, and check if there are any loose contacts or if the relay itself is faulty (most of the times, the contacts between the relay gets burnt out due to sparking).

Someone mentioned the kill switch earlier? Unlikely, but still use a multimeter to test the damn thing! Don't leave anything for ambiguity.

**SiD13** · 11-09-2012, 08:41 PM

Originally posted by awesomeo View Post

Your problem could be due to one of the two things: Electrical or Mechanical.

Electrical as in blown fuse, faulty relay, faulty starter coil. Mostly this is an electrical issue. If you can't hear the starter coil run, then it's an electrically issue.

Here's how you start diagnosing it:
1. Check if you hear the starter coil when you press the ignition, if no.. continue
2. Remove your seat, you'll see bunch of relays under the seat, check if any one of them gives a "tick" sound when you press ignition. If no, continue..
3. Check if your fuse is blown (unlikely because it works sometimes in your case, but still for knowledge sake)
4. Remove the relay, and check if there are any loose contacts or if the relay itself is faulty (most of the times, the contacts between the relay gets burnt out due to sparking).

Someone mentioned the kill switch earlier? Unlikely, but still use a multimeter to test the damn thing! Don't leave anything for ambiguity.

That is detailed and helpful reply..thanks. I took the bike to SC today. I was a bit late to reach so they did not had enough time for detailed analysis. Anyway they say usually this issue would be due to engine kill switch issue. They did something to make it correct and i rode back home. However, the problem still persists. Now please tell me guys, if engine kill switch is on (that is stop engine mode) if i try to push start would it start? or does it have to be off?. I am asking this because, i tried starting a few times using self start (engine kill switch was in engine on mode) and it did not start, i didn't touch the switch and push started. So if engine kill switch had loose contact it shouldn't be starting? or irrespective of engine kill switch position engine would start if push started? please throw some light.

**revvhard** · 11-09-2012, 11:56 PM

Originally posted by awesomeo View Post

2. Remove your seat, you'll see bunch of relays under the seat, check if any one of them gives a "tick" sound when you press ignition. If no, continue..

My bike does make this tick sound when i start it up, what does it mean??? Is something wrong??

**Pranit_Crystal Myth** · 11-10-2012, 06:01 PM

Hey guys,
Anyone here using a HID, if yes which one, i mean, xenon or Bixenon..

I am gonna be using it in the left eye, so which one shall i get..

**SiD13** · 11-10-2012, 08:27 PM

Originally posted by revvhard View Post

My bike does make this tick sound when i start it up, what does it mean??? Is something wrong??

No, actually it means that relay is working.

Anyway, in my case issue was with the starter relay and it was changed. Total cost INR 78.00.

Thanks for the support guys

**awesomeo** · 11-11-2012, 02:51 PM

Originally posted by SiD13 View Post

That is detailed and helpful reply..thanks. I took the bike to SC today. I was a bit late to reach so they did not had enough time for detailed analysis. Anyway they say usually this issue would be due to engine kill switch issue. They did something to make it correct and i rode back home. However, the problem still persists. Now please tell me guys, if engine kill switch is on (that is stop engine mode) if i try to push start would it start? or does it have to be off?. I am asking this because, i tried starting a few times using self start (engine kill switch was in engine on mode) and it did not start, i didn't touch the switch and push started. So if engine kill switch had loose contact it shouldn't be starting? or irrespective of engine kill switch position engine would start if push started? please throw some light.

Your bike won't jump start, if the kill switch is on.

Originally posted by revvhard View Post

My bike does make this tick sound when i start it up, what does it mean??? Is something wrong??

Is it just one tick, when you press the starter or a continual tick tick sound?

Originally posted by Pranit_Crystal Myth View Post

Hey guys,
Anyone here using a HID, if yes which one, i mean, xenon or Bixenon..

I am gonna be using it in the left eye, so which one shall i get..

I'm using a single beam HID on my RHS. 4200K

**revvhard** · 11-11-2012, 03:53 PM

just one tick when i thumb the starter....

**awesomeo** · 11-11-2012, 05:14 PM

Originally posted by SiD13 View Post

Hi Guys,

Requesting your help again....

I am facing starting trouble since last 2 weeks. The nature of starting trouble is confusing and I couldn't identify the specific reason yet. Sometimes the bike will start without any fuss and while riding there is no problem. Once its switched off after riding(irrespective of ride distance be it 1 meter or 1000 meters) it fails to start again immediately. And sometimes even that problem is not faced. I tried turning on bike and leaving it like that for few minutes and turned it off and then started again (it started without any problem) to ensure that it is not a fuel pump heating up problem(like a fellow member faced and had to change pump at cost of 7500). After trying different permutations and combinations i feel like the bike starter is not activated since the system is sensing that bike is not in neutral or that clutch is disengaged while in gear. I don't have much idea about how the system identifies if the bike is in gear. Can I have your thoughts please? If anyone faced similar issues please leave your suggestions.

To go a little more into the detailed diagnosis, take a print-out of this PDF file, and slap it on the service engineer at Yamaha. These people are supposed to follow these checklist as laid out by the manufactures, but they often cut corners which result in customer frustration.

Having worked with Yamaha, I can tell you, these guys really invest a lot of money in quality testing of the motorcycle. The service guys just screw it up without following the specify instructions.

Electric Starting System Diagnosis: https://dl.dropbox.com/u/29657897/Starter_Diagnose.pdf

Originally posted by revvhard View Post

just one tick when i thumb the starter....

The tick which you hear is nothing but the starter relay getting actuated. The power output of the R15's starter motor is 0.20kW. That's too much load for your thumb starter button to handle. To prevent the switches from sparking inside and melting.. they've introduced a relay. Your thumb switch turns the relay on, and the relay turns the starter motor.

Dropbox - 404

https://dl.dropbox.com/u/29657897/YZF_R15_Charging.pdf

**HotAntivirus** · 11-11-2012, 09:23 PM

My 20km/2 year old R15 is running too harsh, While engine braking it isn't as smooth as it used to be, Feels very harsh with vibrations. I got the bike serviced and all the mounting bolts were tightened also asked the Mech to adjust the tappets but he said its not needed that engine isn't running harsh due to the tappets(2-3 mech's told the same thing to me)

Nobody is able to understand the main problem, anyone here faced something like that?

**Raneet** · 11-12-2012, 02:40 AM

Originally posted by HotAntivirus View Post

My 20km/2 year old R15 is running too harsh, While engine braking it isn't as smooth as it used to be, Feels very harsh with vibrations. I got the bike serviced and all the mounting bolts were tightened also asked the Mech to adjust the tappets but he said its not needed that engine isn't running harsh due to the tappets(2-3 mech's told the same thing to me)

Nobody is able to understand the main problem, anyone here faced something like that?

Bro please check the spark plug and the spark plug cable once..

**anex** · 11-12-2012, 10:06 AM

@TeeJayy: i send a mess so that your box is full, please check agian...

**svjhonda** · 11-12-2012, 10:48 AM

Hi guys. I'm facing an electrical issue with my bike which Icant quite get my head around. Earlier my original Tata Green battery (3.5 Ah) discharged completely while riding back from a highway ride. I thought the battery has given up after 4yrs of use and promptly replaced the battery with an Amaron Probiker 12v 5Ah battery. It went well for 1 day and discharged the very next day, Prompting me to believe the battery isn't charging at all. I checked through the service manual and zeroed in on the rectifier/regulator, thinking that maybe the regulator is done for. Despite replacing the RR unit, the voltage across the battery terminals is still 12.8v at 5000rpm, which is not what its supposed to be. The service center guys say because I am using a 5Ah battery, its charging at 3.5Ah, but discharging at 5Ah, hence its not working properly. Else the battery and the RR unit is fine.

Anybody faced similar issues? Because I know a few people here are using 5Ah batteries, and they were working without any issues AFAIK. Please help guys. I'm really challenged when it comes to electrical analysis/repairs.[/U]

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