[Author Index] [Date Index] [Thread Index]
[Date Prev][Date Next][Thread Prev][Thread Next]

Re: [ST] Engine Dying



David,
    I have had this sort of thing happen twice in 60K miles on my 2000 
ST. Once it happened at a gas station as I had stopped to fill my tank 
and for some reason I had to move to another pump, so I started the bike 
  and immediately dropped it into gear and then stalled it. After 
filling up the bike would not idle. I rode it several miles stopping at 
lights with it dieing. Took it out on a freeway and ran in several miles 
and then pulled over. It died and after about 3 minutes I restarted it 
and it ran fine. I attribute this to the throttle body sensor getting 
out of step with the ECU and it taking some time for the ECU to 
recalculate its position. The second time it happened, an new problem 
had developed in that it would idle at 1200 rpm with the clutch in at a 
light, but would jump to 1800-2000 rpm it it shifted into neutral. The 
bike died on me as I was coasting to a stop at an inspection station a 
couple of times. I took it to the Dealer and had the O2 checked and set. 
Never found out of it was out of spec, and also had the sport bike tune 
checked. I have a Power Max exhaust on it. After coming back from the 
dealers the idle problem is still there but it has not died at anytime 
since unless I shut it off. I alway use the ignition key to stop it and 
never the kill switch. I have heard that using the kill switch does not 
give the ECU enough time to make note of the current throttle body 
position and to take other readings before it stops.
Al

dlearl wrote:
> Hello all, I'm in a bit of a quandary.  I just finished doing a 6,000 mile
> service and I've got a bit of a problem.  The bike keeps dying.  At idle,
> sometimes underway, it's as if power is lost, somewhere for a brief moment.
> At idle, obviously the engine quits.  Under way it's just a bit of a
> stumble.   No poor running, just OFF. Like I'd hit the kill switch.
> Immediately all the dash lights are on, just like I just turned the key on.
> 
> I'm assuming first off that I either pulled one of the FI wires loose, or
> failed to make a good connection to the tank somewhere.  That's where I'll
> start.  But does anyone else have another idea?  Didn't get anywhere near
> the ignition switch so I'm pretty sure it's not the case of the stretched
> wires.  Kill switch and side stand switch both seem to be in good order.
> 
> Lastly, if this were an intermittent power to the fuel pump or ignition
> issue, would this show up as an error if the ECU were read?
> 
> '99 ST
> 
> TIA
> 
> David Earl
> CRS America
> (v)+1 702 368 3680 Ext. 3
> (f) +1 707 281 1426
> 
> 
> 
> _______________________________________________
> Triumph Sprint ST/RS mailing list
> Send list posts to ST@xxxxxxxxxxxxxx
> Change your list options at www.Triumphnet.com
> 
> 
_______________________________________________
Triumph Sprint ST/RS mailing list
Send list posts to ST@xxxxxxxxxxxxxx
Change your list options at www.Triumphnet.com