Hi guys -

During the winter I drained the tank by disconnecting the quick release then using a deep socket I unscrewed the fuel supply check valve. Today I poured a couple of gallons in it and it won’t start. Looking at the drawing in the SM I am now thinking that the fuel line inside the tank became disconnected from the fuel supply valve as I unscrewed it.

But the fuel pump runs and stops after a couple of seconds like normal leading me to believe that it is not disconnected otherwise the fuel pump wouldn’t stop because it wouldn’t pressurize.

Is it possible there is air entrapped in the line, say in the fuel filter?

Can anybody advise me on this? Tomorrow is the first good riding day of the season !

 

You may have twisted the fuel line and kinked it, if that's even possible. The pump would build pressure then shut off but the fuel can't get past the kink. Just a wild guess.

The only other possibility I can think of is that the quick connect isn't seated properly and not allowing fuel to get past it.

I hope it's the latter of the two, or it could be something completely different.

That's all I got.

 

What was the reason you drained the tank? Just asking.

 

I will check to see if it is seated properly in the morning by disconnecting and reconnecting. Might as well try the easy stuff first.

 

You would have to pull pretty hard on it to disconnect the fuel line from the canopy. Disconnect the fuel line from the tank and reconnect it. Be sure its clean and nothing is obstructing it from seating all the way.

 

Mostly because I have never done it and I was bored. I have always topped off the tank and stabilized the fuel for winter storage. This time I drained the tank and fogged it.

The winters in Minnesota are very, very long....

 

Thats good to hear because it was a PIA just pulling the pump out to change the fuel filter. I don't like working inside the tank.

 

You most likely damaged the fuel line inside the tank and are not getting pressure to the injectors. The pump shutting off after two seconds does not necessarily indicate the system is pressurized, it is programmed to turn off after two seconds unless the bike is cranking over or running.

I'm sure that you have learned from your mistake, but for anyone else contemplating removing the fitting from the tank, you must remove the top plate and disconnect the the other end of the fuel line before removing the fitting. Otherwise the fuel line will just twist and kink as you unscrew the fitting. You might get lucky, but chances are you'll damage the line.

 

I didn't know that about the fuel pump.

There doesn't seem to be much that holds the fuel line onto the valve.

 

Have see that first hand on another bike.
After trying several times to start the bike (all it would do is crank, but not fire), he finally pulled the quick disconnect off and re-seated it.
Bike fired right up.

A fuel injected bike will not even begin to fire if the fuel pressure isn't good.