Start 2-3 times

[xdragracer]

I am having a hell of a time getting my bike to start and stay running the first time. It always dies {cold} on the first start. Have to hit the started again.
I have tried to add the IAC Steps, Warmup Enrichment and other settings related to cold starting. Starts good when warm.
It has done this since Day 1 when i bought the bike, Even when the SERT was in it. I now have TTS Master Tune. No {02 Sensors}
Any help would be GREAT !
Other than starting, The bike runs Great. 45 mpg.

[mayor]

please post your calibration. 

[BVHOG]

try adding some cranking fuel

[1931jamesw]

Are you having this problem while trying to record data? If so, are you hitting the start button to start recording before you are starting the bike? If so, dont hit the start button until after the bike is started. Some bikes dont like having the start button pushed on the data recording before they are running others dont care. No rhyme or reason why some and some dont, its just the way it is.

[xdragracer]

please post your calibration.

Installed  BMJ 141-03 Calibration

[xdragracer]

please post your calibration.

Installed  BMJ 141-03 Calibration

Not recording. Just starting the engine.

[xdragracer]

try adding some cranking fuel

Tried that added10%,20%.

[Ajayrk]

Have you tested the crank position sensor?

[xdragracer]

Have you tested the crank position sensor?

No ,I have not ! How do I test it ?

[xdragracer]

Have you tested the crank position sensor?

No ,I have not ! How do I test it ?

[HD/Wrench]

Since you have made the other changes it could be a internal loss of fuel pressure.  Check for fuel pressure and see if it holds. If no way to do that,.. You can pop the fuel door ( do not put face over hole) Run switch off ign on now listen when you turn run switch on. You will hear pump run then stop , if you hear the odd gurgling noise or a hissing noise after pump shuts off then there is a leak inside ( most common line).

[1FSTRK]

The first thing I would try is restoring the factory map and see if it fixes the problem. This will tell you if it is hardware or software.
If that works do a data recording of a couple start ups with the stock maps and compare the data to the settings in the map you are trying to use.

[xdragracer]

Since you have made the other changes it could be a internal loss of fuel pressure.  Check for fuel pressure and see if it holds. If no way to do that,.. You can pop the fuel door ( do not put face over hole) Run switch off ign on now listen when you turn run switch on. You will hear pump run then stop , if you hear the odd gurgling noise or a hissing noise after pump shuts off then there is a leak inside ( most common line).

I can hear hissing after the fuel pump shuts off. And sounds like dripping. I don't have a pressure gage unless I buy one.

[xdragracer]

The first thing I would try is restoring the factory map and see if it fixes the problem. This will tell you if it is hardware or software.
If that works do a data recording of a couple start ups with the stock maps and compare the data to the settings in the map you are trying to use.

The bike has done this since day one when I bought it. Before mods were done. It had a SERT  w/ stage 1 . I have tried different calibrations also , have two hit the starter twice on cold start.

[Ajayrk]

Test KPS:  Unplug the sensor from the harness, connect the a volt meter to the terminals coming from the sensor.  While cranking the engine you should get 5V ac.  Any less and there will be problems.

[hrdtail78]

try adding some cranking fuel

Tried that added10%,20%.

Put back in the 20% and do the same in IAC crank steps in the tuning constants.  Bike should flare to 2000 but will take fuel and some hardware problems.  It will also mask a slight intake leak that seals up with engine temp.

[xdragracer]

try adding some cranking fuel

Tried that added10%,20%.

Put back in the 20% and do the same in IAC crank steps in the tuning constants.  Bike should flare to 2000 but will take fuel and some hardware problems.  It will also mask a slight intake leak that seals up with engine temp.

Yes , I have tried that
Thanks

[HD/Wrench]

so pump runs shuts off and and you can hear bubbling , spraying sound in the tank?

[1FSTRK]

Good call Steve

[rbabos]

The first thing I would try is restoring the factory map and see if it fixes the problem. This will tell you if it is hardware or software.
If that works do a data recording of a couple start ups with the stock maps and compare the data to the settings in the map you are trying to use.

The bike has done this since day one when I bought it. Before mods were done. It had a SERT  w/ stage 1 . I have tried different calibrations also , have two hit the starter twice on cold start.

They can come new out of the box with leaking fuel connections. Do a fuel pressure test and it will likely confirm it. Throwing a bunch of abnormal fuel settings at it isn't the right way to do it if the route cause is mechanical. I suspect it's bleeding pressure between the time the pump stops and the time you wait for the lights to go out. You could try to hit the starter button as soon as you turn the switch on for a comparison on how it starts, which might also point to the problem of fuel psi drop at the injectors.
Ron

[hrdtail78]

What I suggest isn't a fix.  It's a troubleshooting step for someone that can't read fuel pressure.  If it was an 08 and newer.  I'd just open the tank and look for a hole or loose fitting.

[rbabos]

What I suggest isn't a fix.  It's a troubleshooting step for someone that can't read fuel pressure.  If it was an 08 and newer.  I'd just open the tank and look for a hole or loose fitting.

Understood. Just didn't want a case where settings could mask a mechanical issue. Hell, we both know step one golden rule with EFI is check pressure. Then chase other things. Dead give away with this bike is it did it new right away which points to fuel delivery of some sort. Sure factory cals are not stellar, but the engine usually starts first crack and stays running.
Ron

[xdragracer]

Gonna tear into the canopy , see if convoluted hoses have holes in it. Reading other forums related, Ordered a check valve and filter, We shall see whats going on.

try adding some cranking fuel

Tried that added10%,20%.

Put back in the 20% and do the same in IAC crank steps in the tuning constants.  Bike should flare to 2000 but will take fuel and some hardware problems.  It will also mask a slight intake leak that seals up with engine temp.

Yes , I have tried that
Thanks

Yes its hissing and has a Drip, drip , drip sound also

[xdragracer]

so pump runs shuts off and and you can hear bubbling , spraying sound in the tank?

Yes its hissing and has a Drip, drip , drip sound also

[1931jamesw]

Sounds like you found the problem. If not, read my previous post. Are you trying to start recording data before you start the bike? Some bike do exactly what you're describing if you try to record before starting.