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Discussion Starter · #1 ·
Hi guys.. my first post on this forum. Let me first say I'm addicted to the ST Sprint. After coming off a 04 Honda ST1300 I'm stoked to finally be on a bike that hauls some ass for a change... and has great ergos.
Anyway... here's my first question.. regarding my new 2006 Sprint /abs. Is there a trick to starting these tripples? When mine is cold it takes 4-5 cranking sessions for the dam thing to kick over. The way I've been starting it is to turn the key,.. wait several seconds for things to settle and crank it. The bike never starts the first or second try... it usually takes a few tries... I'm worried that one of these days the battery wont beup for the task. Do you have to apply gas while cranking or something?

Thanks all... great forum... great bike.
Ride safe!
emack
 

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It's fuel injected, so you shouldn't touch the throttle while cranking. Some of these bikes seem a bit more cold-natured that others. My '04 usually starts within 2 seconds, but my neighbors '03 seems to act just like yours.

You mentioned that you wait a few seconds after you turn the key, so I'm assuming the fuel pump has finished it's pre-start routine.

[ This message was edited by: DFWBiker on 2006-10-27 11:49 ]
 

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Sprint ST 1050 double secret starting procedure:

Turn the ignition on.
Wait for the instrument self check to complete (allows time for fuel pressure to rise).
Open the throtthe ~25%.
Press starter button.
Release throttle grip while engine is cranking.

Hold your tongue in your left cheek and cross your toes while following the above instructions.

It does seem odd to me that a modern fuel injected engine is so slow to start. Maybe too small a prime pulse? Someone will figure it out.
 

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On 2006-10-27 11:57, CLB wrote:
Sprint ST 1050 double secret starting procedure:

Turn the ignition on.
Wait for the instrument self check to complete (allows time for fuel pressure to rise).
Open the throtthe ~25%.
Press starter button.
Release throttle grip while engine is cranking.

Hold your tongue in your left cheek and cross your toes while following the above instructions.

the little throttle open trick makes it much quicker...
but while doing that I hop on my left foot.... diggin your method of tongue into the left cheek though.

anyone try hip thrusts? LOL



[ This message was edited by: bakwheeltango on 2006-10-27 16:08 ]
 

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Yo Eddie!!!

Don't sweat it. My 2005 Sprint is the same way. Have 14k on it right now. It ALWAYS starts like that.

weird....... :assim:
 

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Discussion Starter · #6 ·
Thanks for the suggestions... It seems every bike has its own way of starting. I wasn't giving the Sprint any gas when cranking, but I'll try it when I leave work. I'm not sure about jumping or hip thrusts though... Maybe after a few vodka martinis.... :-g I'll post a follow up...
 

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The dealer told me when I bought mine it would take about three seconds for a cold start. I have had it since July and it has always started after about three seconds. I was also told not to open the throttle when starting. Make sure you hold the starter down for at least three seconds on the first attempt and it should crank right up.
 

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. welcome emack.
I came from a bigger jap 4 cyl as well and loved the more refined handling and smooooth triple.Still love it - only more than before :-D
The cold starting thing seems to happen with a few bikes.It would be worth seeing if the dealer can put his finger on it.I have heard that there are some updated fuel maps that may help.Mine usually starts within about 2-3 secs when cold and 1 sec when warm and I'm happy with that.

Enjoy.

Grant :cool:

edit - I never touch the throttle when starting but the handbook does say it may help if you give it a bit when 'very cold'

[ This message was edited by: iceman on 2006-10-27 15:33 ]
 

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I have never had a problem starting my former 05 sprint, all i did was make sure to give it its priming time ( 15-20 seconds ) before i mash that starter button.

My secret is that i sit on the whore and give her a few gratitude humps to get her going in the morning. :razz:

Yea shes a whore I paid big time to ride her... Too bad she splattered herself all over the freeway.
 

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On 2006-10-27 11:57, CLB wrote:
Sprint ST 1050 double secret starting procedure:

Turn the ignition on.
Wait for the instrument self check to complete (allows time for fuel pressure to rise).
Open the throtthe ~25%.
Press starter button.
Release throttle grip while engine is cranking.

Hold your tongue in your left cheek and cross your toes while following the above instructions.

It does seem odd to me that a modern fuel injected engine is so slow to start. Maybe too small a prime pulse? Someone will figure it out.
I can back this method up as 100% reliable. It is different to the pre-05 models which had Sagem Fuel Injection and was not preferred/could potentially cause a problem.

The Keihin injetors used on the 05/06 require this to shorten the cold start cycle. It works well, and kicks the bike into cold fast idle immediately.

Russ
 

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turn key

wait

push button

wait

warm up

wait

have fun



:-D :-D :-D :-D :cool:
 

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old school


pull in clutch

kick through to free clutch

turn on gas

kick through several times

find tdc

turn on key

advance ignition

advance choke

tickle carbs (get gas on finger)

trist throttle 1/4 turn

cross fingers

kick with all your might

start over

I guess we're in the age of instant gradification. Back in the day you'd be happy if you got a pop first time around.

:cool: :cool: :cool:
 

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The cold start enrichment is'nt right.

In reality coolant temperature sensor readings are used to make temporary air fuel ratio adjustments.

There is also a start enrichment.

ECUs also use a strategy known as acceleration enrichment..

My thinking is that the accel enrichment puts things closer to where they should be.
 

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Mine went from starting well to no going at all to getting an additional service to not starting well at all to just very inconsistent starting. That is very long wind times to get her to fire. Workshop guys have played with fuel/tune a couple of times and currently has the sports tune which has made her idle best she ever has. Runs sweet once going. What has been sugested as a possible cause given the inconsistency is that the sensor for the crank postion is getting it wrong and she may not be firing/fueling at the right time when this happens. Guys at work laugh when she does this but all say that they can smell fuel. At the moment using the shops suggestion to turn her off if she does not fire within a dozen turns to reset the ecu/sensor and trying again which seems to be working. Bear in mind that I have no mechanical knowledge of the fuel injection system and rely old hat seat of the pants feeling and what is being told to me.
 

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MiniTwins, if you have to repeatedly turn the ignition off to reset the ECU then you have a fault. Hopefully you've still got warranty left because unless it's a kinked hose (fuel or air) diagnosing which sensor and/or replacing the ECU will likely be expensive otherwise.

Get this logged with Triumph as a warranty request before your warranty expires.

Good luck, and keep us informed.
Russ
 

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My '06 needs about 5 seconds of crankin' to lite the candles when cold. Seems normal and very consistant. I don't release the starter until it fires, this way I don't kill the voltage in the batt.
My guess is that, most interrupt the normal starting sequence and retry by repeatedly hitting the starter, giving the impression of a bike that starts poorly.



[ This message was edited by: airrider03 on 2006-10-28 09:50 ]
 

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My 2006 Speed triple has the exact same starting issues as you guys do. My dealer has been VERY cool trying to fix this issue for me. Triumph knows about this issue. They say its just the way it is on the 05-06's.

It has been fixed with a new CPU on the 07's. (read any of the new press releases on the Sprint, and Speed triple and they all say faster starting on the 07's)

My bike always started slow from when it was cold.

But my bike also wouldn't start at all if it was shut down for a half hour and they I try to restart it.

Triumph said that what happens is even though the bike is still probably warm after 30 minutes, the computer isn't smart enough to see this. It will then richen up the mixture while you try and restart it..which it didn't need to do..... Causeing a very rich condition. Possibly fouling the plugs.


The dealer put in hotter plugs for me, and I used tune boy to change the prime pulse setting on my map. It still takes about 3 stabs at the starter button when dead cold (letting it crank 1-2 seconds), and now starts right up after sitting 30 minutes (it used to take 30-40 seconds before)


I have tried the crack throttle open trick as posted above, and at least on my bike, it seems to screw up my idle if I do that, and didn't seem to start any quicker.


Hope this helps. Some speed triple guys were hoping we could just get the ECU from the 07s....until they saw they price. :)


-Jay
 

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On 2006-10-27 11:57, CLB wrote:
Sprint ST 1050 double secret starting procedure:

Turn the ignition on.
Wait for the instrument self check to complete (allows time for fuel pressure to rise).
Open the throtthe ~25%.
Press starter button.
Release throttle grip while engine is cranking.


It does seem odd to me that a modern fuel injected engine is so slow to start. Maybe too small a prime pulse? Someone will figure it out.
It's the fuel injection system used on the current models that make it start up so slowly. The "trick" helps it start up much faster.

Supposedly the new models start up much faster. Remains to be seen, but according to Triumph the new system is about 3 times quicker.
 

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Discussion Starter · #19 ·
Well.. I stopped into the dealer today to ask their opinion on cold starts. When I bring it back for a 500 miles service they'll put in hotter plugs and run a diagnostic for faults. Go from there. They are very helpful and are willing to do what it takes to find out what's going on. They noticed the same thing on their demo Sprint. I mentioned re-mapping and they said they'd like to try the plugs before doing that. Whatever, but it's not right that's for sure. On the plus side... I got a sweet deal on a leather triumph jacket that was mispriced and marked down a additional 50%. The msrp was $450, I nailed it for $125... Sales person was not happy about that.... but I sure was. :-D
 

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From a engine management system book I have.


Difficult Cold Start, Poor Operation When Cold..


Possibly bad coolant temp sensor

Warmup map needs enrichment..

Zero-RPM map needs more duration on cranking bars.

Cranking primer needs more duration.


Check coolant sensor and maps for proper adjustments.


Also check battery voltage when cranking. If it dips below 8.5volts while cranking.
 
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