Engine cut out when warm - Page 3 - SV650.org

JediGoat · 24-03-06, 12:38 PM

Like toothache that vanishes the day you go to the dentist, my bike hasn't cut out once today.

Rob had a look at it, and seems to have identified the cause of the electrical problems - the regulator. Instead of my battery being 30+ volts, it's at 12

It'll cost £100 for a new one.

As for the cutting out - no idea (unless it's related to the undercharged battery). All the sensors are working fiine.

I'm going to take it out for a pootle on Sunday morning, and if it cuts out, then I'm getting the tube to work and taking my bike back to Rob for him to test ride it when cold.

Jo

24-03-06, 01:37 PM

Eh? The battery should be at 12v (well between 12 and 14 when running). A blown regulator is what would make it 30+volts … I guess what he/you means is that the battery isn’t getting enough charge hence struggling to even keep 12v?? Which can be down to a faulty regulator too, or a coil gone in the generator. To be honest when regulators go, they tend to go such that they don’t regulate (the 30v+ scenario), I am sure he will test it, but if you are struggling with the 12v, it is perhaps more probable that the regulator is fine and you have lost a phase on the generator?

I’d get him to check this before you splash out 100 notes on a new reg/rec unit!!

Oh and by the way, you can get aftermarket regulators for about £60 and they are generally ‘stronger’ than OEM jobbies.

JediGoat · 24-03-06, 04:29 PM

The most likely explanation for the 12v confusion is me not understanding what he was talking about, and typing what I think he said!

Yes, you're right, he said that the regulator isn't charging the battery enough, or at least not consistently, which would explain why sometimes it starts like a bike with a new battery, and other times like an asthmatic 70 year old smoker.

To be fair to Rob, he did have other jobs on and offered to look at it straight away, plus I was trying to hurry him up a bit because I had another appointment to get to.

I'm going to have to take it back to him so he can test it cold and take the time to investigate it properly - and to find what's causing the cutting out.

Why do bikes/cars/houses/jobs always co-ordinate their problems just when you have no spare time available

Thanks again for the advice, I'll let you know when the gremlin is found, hung, drawn and quartered.

Ta
Jo -> not to be beaten by a badly behaving bike, I'm going to force it to take me to work and back on Monday....as a punishment

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24-03-06, 12:38 PM	#21
JediGoat Member Join Date: Jul 2005 Location: NW London Posts: 861	Like toothache that vanishes the day you go to the dentist, my bike hasn't cut out once today. Rob had a look at it, and seems to have identified the cause of the electrical problems - the regulator. Instead of my battery being 30+ volts, it's at 12 It'll cost £100 for a new one. As for the cutting out - no idea (unless it's related to the undercharged battery). All the sensors are working fiine. I'm going to take it out for a pootle on Sunday morning, and if it cuts out, then I'm getting the tube to work and taking my bike back to Rob for him to test ride it when cold. Jo

24-03-06, 01:37 PM	#22
Blue_SV650S Guest Posts: n/a	Eh? The battery should be at 12v (well between 12 and 14 when running). A blown regulator is what would make it 30+volts … I guess what he/you means is that the battery isn’t getting enough charge hence struggling to even keep 12v?? Which can be down to a faulty regulator too, or a coil gone in the generator. To be honest when regulators go, they tend to go such that they don’t regulate (the 30v+ scenario), I am sure he will test it, but if you are struggling with the 12v, it is perhaps more probable that the regulator is fine and you have lost a phase on the generator? I’d get him to check this before you splash out 100 notes on a new reg/rec unit!! Oh and by the way, you can get aftermarket regulators for about £60 and they are generally ‘stronger’ than OEM jobbies.

24-03-06, 04:29 PM	#23
JediGoat Member Join Date: Jul 2005 Location: NW London Posts: 861	The most likely explanation for the 12v confusion is me not understanding what he was talking about, and typing what I think he said! Yes, you're right, he said that the regulator isn't charging the battery enough, or at least not consistently, which would explain why sometimes it starts like a bike with a new battery, and other times like an asthmatic 70 year old smoker. To be fair to Rob, he did have other jobs on and offered to look at it straight away, plus I was trying to hurry him up a bit because I had another appointment to get to. I'm going to have to take it back to him so he can test it cold and take the time to investigate it properly - and to find what's causing the cutting out. Why do bikes/cars/houses/jobs always co-ordinate their problems just when you have no spare time available Thanks again for the advice, I'll let you know when the gremlin is found, hung, drawn and quartered. Ta Jo -> not to be beaten by a badly behaving bike, I'm going to force it to take me to work and back on Monday....as a punishment