Gas delivery quick release fitting

[Fearnot69]

Alright. I've been having issues with running hot and temp. gauge running HI, but this is ANOTHER issue. After filling the radiator and running the engine to get to temperature, I noticed puffs of smoke from under the seat. Intrigued, I pulled the seat and noticed one of the two hoses under the tank was wet? Smelling my fingers, I quickly realized it was gas. I am thinking "Nice. I've had this bike inside three months, put 2000 miles on it, had more issues than any of the other two I have and with a fraction of the miles. So having bought this to ride, rather than look at or work on, I am a bit hot. I read the thread on changing out the coolant and believe I have purged all the air and it is good to go, but I am a bit fearful of setting my butt on fire testing to see if it runs hot. I've messed with the cooling system for two days now, so yesterday I ran it pretty hard around my home so I could get back if I had any problems. I have smelt gas in the past when starting a ride, so I am not sure this is new. I usually start riding before dawn, so I wouldn't have noticed any puff of smoke. Any suggestions or experience with those quick release fittings leaking? Difficult to replace? I have the service Manuel, which is VERY detailed  . I sound bitter, but I love riding it, but it's developing into a dysfunctional relationship. Sorry for the rant. Any suggestions? Wouldn't be too smart to ignore it and just ride it...unless I am carrying a fire extinguisher? FWIW, I have pushed it in further and it is just moist at the gap and not leaking. Thanks for the help in advance.

[Speeddog]

Which year and model of bike are you having the issue with?

[Fearnot69]

Sorry. 2007 S4RS. 8900 miles.

[Speeddog]

It's pretty easy to damage one of the O-rings when attaching the QD fitting to the tank.

Most likely that's what you've got.

[Bill in OKC]

I had one of those fittings start acting up.  The ones with the plastic band you press to release the fitting.  I think they just get tired over time.  I tried rerouting the hoses and loosening the hose clamp to rotate them so there would not be any sideways torque on them when the tank was down but it still was a problem.  I ended up replacing both of them and the new ones just work.  Wish they were not so expensive.  I've seen a billet replacement pump flange (oval but maybe there are round ones too?) - you have to transfer your pump etc to it but looks like it has normal reliable fuel fittings.  Maybe one of these days I'll spring for one.

edit:  Actually I am having the same issue as you - hi/weird temp readings.  I've replaced my temp sensors but no change.  I have a thermostat on the way but I am going to check my fuel injectors to see if one might be clogged up in the mean time.  The bike seems to be running OK but I know it is trying to tell me something lol.

[Fearnot69]

Right. Thanks for the response. I will check for a part number and price. Dumb to ask, but do I have to drain the tank to replace it? If it seems to have stopped leaking, can I still ride it? I swear I have smelled gas at times just as I start a ride.

Bill, I didn't mention it, but the temp. was bouncing around by over 50 degrees. It would read HI, but come down drastically. Was told by dealership and Duc. tech., that it was probably a bubble in the system. It was reading HI on my way to work. put coolant in it, after consulting a tech. No problems for a few weeks and it started again. I don't think I got out all the air. I hope this worked and can ride it, as it won't be too long before it's intolerable. What does the temp. reading have to do with fuel injector?

Thanks again.

[memper]

Well, Italian women tend to be moody and haughty, but also sexy and full of gusto. They will complain til you pay good attention to them, but will be a joy if tended to.
They are a pain and some guys can't deal so they prefer the quiet subservient types of the Far East.
I am off topic aren't I. Memper drinks and types...

[Fearnot69]

Well, Italian women tend to be moody and haughty, but also sexy and full of gusto. They will complain til you pay good attention to them, but will be a joy if tended to.
They are a pain and some guys can't deal so they prefer the quiet subservient types of the Far East.
I am off topic aren't I. Memper drinks and types...

Yes you are, but I agree full heartily. I wanted to use her as a commuter. I ride 100 miles each day of work. Getting acquainted with the bike, which is the most visceral bike I've ridden,  I've grown to dream of the time I get to ride it. You've stated the emotions exactly and sounds corny, but unless one has ridden one, they don't understand. I get it. I'm hooked. But...pissed I have to learn to care for her adequately so I can enjoy that time and consistently.  Nicely put!

[EEL]

That's why I settled for the Italian slut (2V) instead of supermodel (4V).  Still as fun to ride without all the bull$hit pampering.

[Fearnot69]

That's why I settled for the Italian slut (2V) instead of supermodel (4V).  Still as fun to ride without all the bull$hit pampering.

You are three months too late, but thanks. I wanted the supermodel anyhow. I unknowingly brought it upon myself.

[Speeddog]

Check for damaged O-rings before you go buying the whole fitting.....

[Fearnot69]

Check for damaged O-rings before you go buying the whole fitting.....

Prey tell, how do you do that? Can that be found in the service manual or owner's manual? Do you have to drain tank? How can you tell if they are damaged? Are they the black plastic rings that are around the fitting? From what I can tell, they look intact. I didn't raise the tank. Would that give me a better view? Thanks. I need a bit more guidance.

[Speeddog]

You need to disconnect the fittings from the tank to inspect the o-rings.

You don't need to drain the tank, but put a couple shop rags underneath the fittings before disconnecting.

Use care, no nearby open flames or ignition sources, as it will spill a bit of fuel.

I'll try to post a pic or two later.

[Fearnot69]

You need to disconnect the fittings from the tank to inspect the o-rings.

You don't need to drain the tank, but put a couple shop rags underneath the fittings before disconnecting.

Use care, no nearby open flames or ignition sources, as it will spill a bit of fuel.

I'll try to post a pic or two later.

Thanks Speeddog. Pictures would be appreciated. I suppose it could be a o-ring if that keeps the seal tight. I thought if the fitting was removed, gas would pour out. Please, what is its purpose?how does it leak but not pour out if removed.  It just appears to weep gas if giggled or pressure is applied. I just want to make sure it is safe. Riding a bike on fire isn't an interest of mine. Thanks.

[rule62]

My 748 started leaking a bit from the Q-D fitting too. It was the o-ring on the male end. Surprising how just the tiniest knick can cause a bunch of gas to come out. The Q-D fittings are "valved". That is they are designed in such a way that when they are disconnected, they stop the flow of fluid (gas).

If you are in the lower 48, send me a PM with your address. I somehow wound up with lliterally 100 extra viton Q-D o-rings. Two weeks ago I totalled the 748.    I can put a few o-rings in an envelope and send them to you easy.