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Annoying Sprint

3K views 27 replies 10 participants last post by  Gabriel Syme 
#1 ·
This Sprint is beginning to annoy me. I trailered it up to N.C. for a long weekend ride. Now upon starting, it idles well, but open the throttle the slightest bit, and the engine dies. It is not the fuel this time as it is full of non ethanol fuel and I have ridden it since fillup. :Angry
 
#2 ·
So a friend and long time moto mechanic suggested that the air/fuel mixture may need adjustment for a higher altitude, 300ft vs. 2900ft. That is a bit finicky if you ask me. I don't suppose that is an easy adjustment to make, in the front yard?
 
#3 ·
It's fuel injected; it doesn't care about altitude. IACV or IACV hoses, most likely. Maybe a bad map?

Cheers,
-Kit
 
#6 · (Edited)
It's fuel injected; it doesn't care about altitude. IACV or IACV hoses, most likely. Maybe a bad map?


-Kit
I know it is FI, but it only has this problem at higher altitude. at home it runs fine.

Cheers,

It's the trailer, a Triumph does not like trailering. H-Ds love trailers though!��
True, but my state is flat and the roads are boring. I have been out of this state in every direction. once you have ridden a road, you do not want to repeat it.

Your friend needs to catch up with the technology :grin2:

What Kit has said is much more likely, considering you do not have carbs!

It would also likely that your bike has not been overly well maintained prior to your ownership.


cheers
DaveM:smile2:
well it only has 5000 miles on it. it was owned by a mature rider who decided to quit riding. It was barely used, but maintained.

As for the mechanic, he was relaying info obtained from a Triumph dealer mechanic. :surprise:
 
#7 ·
If you have any tools with you pop the tank and check out those stupid vacuum hoses like Kit suggested. They used corrugated tubing with rubber end caps and the rubber cracks and falls apart. When my Tiger did that the idle was all over the place and it bucked and lurched all the way home from work one day.
 
#8 ·
they will be checked when I return home. However, my idle is smooth and the bike performs as expected when I am home. But both times I have it in N.C. at higher elevation, it will still idle, but dies when given any throttle.
 
#9 ·
Again, unless someone has loaded a map for a different model or something, the elevation is unrelated. I've taken mine from the Inland Empire over a 3,000 foot mountain down to, literally, sea level. A few days later on the same trip, I crossed the Continental Divide at a little under 13,000 feet and ended the day 10,000 feet lower in Amarillo, then back down to sea level again the day after. Something is broken and needs fixed, and the IACV hoses are the #1 suspect.

Cheers,
-Kit
 
#10 ·
Hi Gabriel

If that is the case then either he was given the wrong year / model to comment on or the Triumph mechanic is a moron.

Altitude makes no difference to these bikes. With that little mileage and the age of the bike it has spent years sitting around not running, this is not a good thing.

cheers
DaveM
 
#11 ·
obviously something is wrong and it is probably the IACV lines and while I get that the bike is FI, it baffles me that it runs fine at home.

as for a bike spending years not running is not a good thing, why does my yamaha and ducati have no trouble running after being parked for years? Yes, jobs and family commitments come before riding.

Oh and the Sprint's fuel tank was cleaned out, fuel filter replaced and fuel pump checked out okay.
 
#12 ·
Hi Gabriel generally it isn't good for any vehicle sitting around for years not being used. This is a generally accepted fact with vehicles of any sort.
It is not brand specific. If you have had no issues with other bikes sitting around not being used for years then you have been very lucky in my opinion.

Yes I understand there is obviously something wrong and I am sure it will be related to my comment above.

Rubber hoses etc deteriorate with age etc.

I do feel your pain and understand your frustration, my point is the problem is most likely not brand specific.

Cheers
DaveM
 
#13 ·
I had a 02 sprint when I bought it brand new it would run fine at sea level but as soon as I ride it on the tablelands where I live at altitude 800 to 900 metres it would play up. It turned out to be a faulty ECU which I got replaced under warrenty. Triumph knew about this problem as there were a few bikes in the Dandenongs in Victoria with the same problems.

Cheers,
Kap.
 
#15 ·
Don't know if it would cause your symptoms, but the same type hose used for the IACV connections is/was used for the atmospheric signal to the ECM. If it is cracked/broken/missing, maybe that would be the problem.

Or, you got some contaminated fuel before you got to NC.
 
#24 ·
My 99 Daytona did the same. Checked hoses, replaced one. No error code at all. Would start and run but die upon opening throttle.

Forum suggestion was a dieing fuel pump. Bought a $39 Amazon pump, two days later installed, runs as new again.

Old pump trickled fuel period.
 
#25 ·
My 99 Daytona did the same. Checked hoses, replaced one. No error code at all. Would start and run but die upon opening throttle.



Forum suggestion was a dieing fuel pump. Bought a $39 Amazon pump, two days later installed, runs as new again.



Old pump trickled fuel period.


Got home and got bike off trailer. It cranked tight up, and I drove it around the block without any problem. I think it is more than just a fuel pump.
 
#26 ·
That sounds VERY similar to my bikes story. I bought it as a project and it came from a guy who lived michigan and brought it to wyoming at 6000+ feet elevation. The giy said it ran perfect in Michigan but as soon as he got it trailered here at elevation the bike wouldnt run. The dude spent all kimds of money on it in the shop but couldnt figure it out. Them i get the bike and it took me around 8 months to figure out that the baro sensor was bad. I had replaced and tested the entire fuel system as buying another ecu was last resort. Well, didnt know but you can check what you baro is reading in tuneECU it reads in hpa, you might wanna check that and compare it to your current weather. Youll have to do some math to convert hpa.
 
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