Re: [ST] Idle speed

["Rick & Joyce" <rnjwes@xxxxxxxxxxx>]

> When my 00 Sprint ST engine is not under load (i.e. transmission in
neutral) it idles at 1500 RPM, which seems a bit fast to me. When I
disengage the clutch and shift into first, the idle drops to 1050 RPM.
Do they all do this? I don't know if it is something I have just
noticed or if I have a problem that needs to be looked at. Thanks in
advance. Brad Hancock, P.E. LCDR, CEC, USN <


Brad, 
Idle should be 1200 +/- 50 rpm.  Check that your clutch doesn't have
too much free play.  

You may have the same problem as Barry had.  Here's his post from
Tuesday:

***************
Recall that I had an insidiously growing problem with fast idle in
traffic, coupled with worsening fuel consumption. Which was sorted two
weeks ago by my local Triumph specialist - they found the idle CO was
at ~8% (it should be 3-3.5) and the stepper motor was at 15 clicks (it
should be 25-35).

It's now running beautifully. Even at motorway speeds it has made a
noticeable difference, with the engine running smoothly and evenly
instead of the previous harshness and uneven surging. But the biggest
improvement is at low rpm in traffic. Not only is the tickover low and
steady (in or out of gear, hot or cold), but the pickup from idle to
slow running is seamless, making slow traffic work a pleasure again.

Best of all the consumption is back to normal. At it's worst I was
seeing the fuel warning light come on at just 150-160 miles, but now
I've run a fresh tank full through and this morning the light didn't
come on until 195 miles. That's better!

I know the CO setting is checked regularly, but does anybody know
whether the stepper motor setting is part of the normal service
routine? It strikes me that it ought to be. Mine had gone miles out of
adjustment before I was driven to actually DO something about it,
which makes me wonder how many of you guys are unknowingly running
with it less seriously out of whack, and maybe not noticing or living
with the subtly rough running and poor consumption......
 Barry
2000 RS
***************
--
HTH,
Rick in Oregon
'01 Sprint ST

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