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Re: [ST] Minor Stumbling Problem
- Subject: Re: [ST] Minor Stumbling Problem
- From: " Kevin Dicks" <rawsonboy@xxxxxxxxx>
- Date: Fri, 4 May 2007 07:22:10 -0400
I'm not convinced myself about the bike 'losing' it's tune but he swear by
it. As I said he has the Tuneboy so it's pretty easy for him to re-load his
tune.
-----Original Message-----
From: st-bounces@xxxxxxxxxxxxxxxxxxxx
[mailto:st-bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of Peter Kroeker
Sent: Friday, May 04, 2007 6:58 AM
To: ST@xxxxxxxxxxxxxx
Subject: Re: [ST] Minor Stumbling Problem
When I had the tune updated there was some minor improvement but the
condition didn't go away. I know it originally had a tune that was at least
4 years old prior to the update so I assume that the improvement was just
from a better injection map overall. So I don't think it has anything to do
with the ECU losing the tune.
Other ideas?
Peter
>A friend of mine with a Daytona swears his bike 'loses' the tune over
>time. He has a tuneboy and re-loads it periodically.
>
>
>
> i had the same issue on my 03, reloaded the triumph tune and it went
> away. it was almost as if it lost the tune (though i didn't see how
> that was possible)...
>
> philip
>
> ----- Original Message ----
> From: Peter Kroeker <peter.kroeker@xxxxxxxxxxxx>
> To: ST@xxxxxxxxxxxxxx
> Sent: Thursday, May 3, 2007 2:59:12 PM
> Subject: [ST] Minor Stumbling Problem
>
>
> I need the collective wisdom of the group. I have a '00 ST with
> Triumph carbon silencer and the latest Triumph tune installed last
> year. I've owned it for 4 years. It has 58,000km and has been a
> fantastic, reliable machine - with one small glitch. Since day one,
> under steady throttle and light load, the engine stumbles below about
> 4000rpm. Nothing major and I've
>
> adjusted my riding style somewhat to compensate. It is just a bit of
> a
> pain
>
> when doddling around town. Under acceleration, everything is fine.
> It seems to also be fine when the engine is cold. There is some minor
> backfiring when slowing.
>
> Here's my working theory: The temperature gauge always reads in the
> cold range. Could it be that the coolant sensor is giving the ECU an
> incorrect signal resulting in an incorrect mixture for the real engine
> temp? I expect
>
> this would make the engine run rich, but the plugs showed a nice tan
> colour
> last time I had them out. But it would explain the backfiring.
>
> What do you think?
>
> Peter
>
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