peplow
16-10-11, 11:53 AM
Hi all,
Right, where to start. I'm not into bikes, but my friend is and he's got a SV650S (the pointy version/fuel injection?).
I was round his the other day and he was showing me the bike and started it up, all was good. However it then started to splutter and cough so he revved it. I asked him why did it do that and he said that the engine dies ive he does not revv it when cold.
I got him to start her up again and leave it and sure enough, it died. Start up, bit of revving and she purrs like a kitten.
I asked him why it was doing it and his response was that V-Twins are renowned for doing this and its normal for and v-twin bike to die when cold like that. He backed this up by saying his mate has exactly the same problem on the same bike and is a renowned problem on the SV650's generally.
My response to that was somewhat different and id be banned from the forum if I repeated it so lets just say it was colourful. I did a comparison by saying that if his car did that, would he say the car had a problem and would you take it to the garage, as you can guess, his answer was yes.
He's got the fuel injected version (the pointy one) and not the twin carb (the round one) so Its not unbalanced carbs (at least not in a conventional sense)
Now my friend is rather lazy whereas im pro-active and have set myself the mission of proving him wrong that its "normal", getting him full power back and saving him some fuel money.
To be fair, the easiest thing is to get a diagnostics kit on it which may answer the question straight away but I just wanted to ask you SV650 owners if you have heard of this issue or known of common faults.
To me it sounds like the coolant sensor is either faulty, offset or has a flat spot at the bottom end but that's only my first stab in the dark but being as a few revs cures it, temperature does seem to be a strong evidence marker.
Cheers for looking and thanks in advance.
Mitch
Right, where to start. I'm not into bikes, but my friend is and he's got a SV650S (the pointy version/fuel injection?).
I was round his the other day and he was showing me the bike and started it up, all was good. However it then started to splutter and cough so he revved it. I asked him why did it do that and he said that the engine dies ive he does not revv it when cold.
I got him to start her up again and leave it and sure enough, it died. Start up, bit of revving and she purrs like a kitten.
I asked him why it was doing it and his response was that V-Twins are renowned for doing this and its normal for and v-twin bike to die when cold like that. He backed this up by saying his mate has exactly the same problem on the same bike and is a renowned problem on the SV650's generally.
My response to that was somewhat different and id be banned from the forum if I repeated it so lets just say it was colourful. I did a comparison by saying that if his car did that, would he say the car had a problem and would you take it to the garage, as you can guess, his answer was yes.
He's got the fuel injected version (the pointy one) and not the twin carb (the round one) so Its not unbalanced carbs (at least not in a conventional sense)
Now my friend is rather lazy whereas im pro-active and have set myself the mission of proving him wrong that its "normal", getting him full power back and saving him some fuel money.
To be fair, the easiest thing is to get a diagnostics kit on it which may answer the question straight away but I just wanted to ask you SV650 owners if you have heard of this issue or known of common faults.
To me it sounds like the coolant sensor is either faulty, offset or has a flat spot at the bottom end but that's only my first stab in the dark but being as a few revs cures it, temperature does seem to be a strong evidence marker.
Cheers for looking and thanks in advance.
Mitch