Now it doesn't start

[WayneDW]

I had the injectors cleaned, took apart the air boxes to clean the throttle bodies, replaced the ducts to the same and the fuel lines.  Put it all back together and put in two gallons of fresh gas.  Now no start.
The fuel pump is pumping, there is gas to the fuel rail.  When I squirt starting fluid into the air intake it acts like it wants to start which means I am getting spark. (but I will double check that at the plugs themselves) I think the fuel injectors aren't opening?  Probably a loose connection I caused somewhere which I will search for.  I triple checked the attachment to the computer to make sure the wires are fitted well.  I have printed out and am referring to the trouble shooting article for K bikes from B. Vogel.

My question: To see if the injectors are opening couldn't I just pull the rail with them attached, then hit the starter to see if they are spraying?  I know this will create a gas mess to clean up but it should work, right?  Any other reason why I shouldn't do this?

thanks.

[mjydrafter]

I had the injectors cleaned, took apart the air boxes to clean the throttle bodies, replaced the ducts to the same and the fuel lines.  Put it all back together and put in two gallons of fresh gas.  Now no start.
The fuel pump is pumping, there is gas to the fuel rail.  When I squirt starting fluid into the air intake it acts like it wants to start which means I am getting spark. (but I will double check that at the plugs themselves) I think the fuel injectors aren't opening?  Probably a loose connection I caused somewhere which I will search for.  I triple checked the attachment to the computer to make sure the wires are fitted well.  I have printed out and am referring to the trouble shooting article for K bikes from B. Vogel.

My question: To see if the injectors are opening couldn't I just pull the rail with them attached, then hit the starter to see if they are spraying?  I know this will create a gas mess to clean up but it should work, right?  Any other reason why I shouldn't do this?

thanks.

That will work, just remember that your spraying atomized fuel into the air.  You can remove them and test them or you can test them in place.  I don't know if you'll have enough hose to pull them with the hoses hooked up though. 

You can also check that they all show infinite resistance.  Then apply 12v to the injector, and it should click. 

Do you know you have good fuel pressure?  Good fuel pump?  You can also hook up a noid light to see if the injector is receiving an electrical signal.

[billday]

Do you have the throttle & choke cables routed and hooked up correctly, and adjusted? Is the throttle position switch adjusted correctly?

[lunchbox]

Did you reverse the fuel lines?

I ask this having recently taken my tank off (not the first time either) and in a momentary brain fart connected the lines backwards while re-installing the tank.

No start situation occurred causing much cussing and swearing because I needed the motorcycle running for a must make drive the following day.

Took a deep breath, reworked through everything and realized I had reversed the fuel lines.

Hope this solves it.

[motodude]

You can wire in an LED to the electrical connection at the injector.  Turn it over and if the LED does not light, then the FI brain is not triggering the injectors.  I know I'm leaving a lot out but I'm at work and can't remember the details.  However, this is a reasonable method to ensure the FI brain is triggering the injectors.  Without spraying gasoline all over the place.

Tom

[mystic red]

Did you reverse the fuel lines?

I ask this having recently taken my tank off (not the first time either) and in a momentary brain fart connected the lines backwards while re-installing the tank.

No start situation occurred causing much cussing and swearing because I needed the motorcycle running for a must make drive the following day.

Took a deep breath, reworked through everything and realized I had reversed the fuel lines.

Hope this solves it.

If the fuel lines are reversed you will hear the pump but it will sound different. DAMHIK

[WayneDW]

Well, I got it started though I'm not totally sure why.  I believe the suggestion to check the throttle cable and TPS may have been the answer.  Both were a bit off.

For future reference, it does work to pull the fuel rail with the injectors attached to see if they are spraying.  I used a paint roller pan under the injectors for the test to catch the gas.  I just hit the starter button for a second to see that gas was spraying and it didn't make much of a mess at all.  By way of liability disclaimer: do so at your own risk:  No hot engine, no spark, no flame... put out your cigarette!

Thanks again guys.
Next step next weekend is to try and balance the throttle bodies.  Then put the fairing/lowers back on.  Then, ready to ride!