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Speed Triple Forum Rants and ravings about the best naked triple on the planet!

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Old 11-14-2012, 11:35 PM   #1 (permalink)
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How should my S3 run at low speed?

Hi Guys,

I'm after honest feedback as to whether the S3 should be smooth at lower speeds. Or "that's just the way the bike is" !!!

Sitting at constant speed anywhere between 40-70 kmh (25-44mph) it feels a little jerky. Like going over a small bump every 1-2 seconds. Nothing too concerning, but annoying enough considering a performance machine. Pull clutch in and coast and the issue goes away.


The service dealer (two different ones) both give me "the computer says no, that's just the way it is" answer when I ask if there's anything wrong.

Is this really just the way S3's are? and it's a matter that they're tuned for higher revs/speeds? Or do I need to go back with some ammo and state my case again?

Any help appreciated.

Thanks,

Jimmy
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Old 11-15-2012, 01:44 AM   #2 (permalink)
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Mines crap at low speeds too!
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Old 11-15-2012, 01:47 AM   #3 (permalink)
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Just the way it is??? Any street bike should be smooth at those speeds. Does the bump sensation match RPM or speed only? Does engine load affect it: high/low throttle, acceleration or deceleration?

I would have had someone there ride it.

However, there is a point where the transmission and engine are at close but not the same rotational speed, so you get this annoying chatter because of gear slop. Happens in any manual transmission vehicle, especially if it's old, which is all I've ever had.
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Old 11-15-2012, 03:46 AM   #4 (permalink)
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Yep it's the furling at low speed drop back in to first or second and you'll be fine I travel from north to south manchester uk everyday in rush hour so it works for me ��
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Old 11-15-2012, 04:31 AM   #5 (permalink)
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Mines like that, I had put it down to my floppy wrist (an old masturbation injury )
Around town I knock it up a gear and keep the revs low to smooth it out.
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Old 11-15-2012, 06:12 AM   #6 (permalink)
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How may RPM's are you running when this occurs?
Probably needs to be kept to at least 3000-3200 or higher depending on load.
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Old 11-15-2012, 10:42 AM   #7 (permalink)
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Have they checked the chain and sprocket? Mine was like that when I bought it used so I took it to the dealer asking the same question. Someone rode it and said the chain was in bad shape. Changed the chain and sprocket and it smoothed out a lot. Might be worth having it looked at.
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Old 11-15-2012, 04:33 PM   #8 (permalink)
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How is your bike set up? A lot of the low speed snatchiness has to do with the points at which the mapping is changing tables..Try a different tune.
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Old 11-15-2012, 06:43 PM   #9 (permalink)
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Originally Posted by Joe Houle View Post
How is your bike set up? A lot of the low speed snatchiness has to do with the points at which the mapping is changing tables..Try a different tune.
Probably Bingo.

Joe is referring to TPS to MAP transition point/switch. You can verify this via TuneEcu.
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Old 11-15-2012, 06:56 PM   #10 (permalink)
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Probably Bingo.

Joe is referring to TPS to MAP transition point/switch. You can verify this via TuneEcu.
What value in TuneECU shows this and what is an acceptable value?
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