Kyle,

That's really helpful.  Thanks a ton man!  I guess a remaining
question though, is without my Clymer manual, how would I get to the
point where your photos start?  What are the steps to remove the
petcock itself (or is it too complicated and I need to wait for the
Clymer to ship)?  And finally, if indeed all the rubber in there is
ruined, where's a good place to get new seals?

Thanks again,
Zac

On Jan 15, 12:37 pm, Kyle Munz <[email protected]> wrote:
> I have pictures from when I took mine apart on my 650. There should be some
> similarities with your 550 if they're not the same part. Also, once you have
> the petcock off there should be a plastic screen inside the tank that the
> reserve "straw" sticks up into, make sure that doesn't have any rips or
> tears while you're in there.http://munz.kicks-ass.net/nighthawk/?p=151
>
> -Kyle
> -Sent from Houston, TX, United States
>
>
>
> On Fri, Jan 15, 2010 at 11:29 AM, Zaxeiler <[email protected]> wrote:
> > I don't think it's a hole...  However, I did realize it when I had it
> > running while sitting recently.  It is dripping at a steady pace from
> > the bottom of the petcock.  The main fuel line that runs from the
> > petcock to between the carbs (2 & 3) is also noticeably wet with fuel.
>
> > My clymer manual isn't here yet.  Any suggestions as far as where to
> > start to stop the leak?
>
> > Your comments are most appreciated,
> > Zac
>
> > On Jan 14, 12:47 pm, Kim Paddock <[email protected]> wrote:
> > > The last time that happened to me it was a pinhole leak in my gas tank.
> > It had rusted through. It took a little bit of looking though as the paint
> > was not peeled off. I finally found a spot where the paint had bubbled a
> > bit. That was the hole. I hope that it isn't your tank...they are expensive
> > and hard to find. HotrodMamma.
>
> > > ________________________________
> > > From: Zaxeiler <[email protected]>
> > > To: Nighthawk Motorcycle Lovers! <[email protected]>
> > > Sent: Wed, January 13, 2010 10:22:27 PM
> > > Subject: [Nighthawk Lovers] 1983 Nighthawk 550 Gas Leak
>
> > > I just purchased this bike over the weekend.  It's in great condition
> > > and is a great ride.  It was sold by a man who collected nighthawks so
> > > it's in good shape considering the year, and has about 24k miles on
> > > it.  Besides the fact that it's my first bike, and I'm ecstatic and
> > > love riding it to death (even in the midst of winter), I have finally
> > > deduced tonight that it has a fuel leak.
>
> > > So, as back story, I bought it about 120 miles from my home.  The deal
> > > was too good to pass up on, and I had a friend drive it back for me.
> > > About 2/3 of the way through the trip, after about 70 miles she died
> > > on the interstate and needed to be changed to reserve.  Now, I had
> > > read that the range of the bike could vary from 80s-140s...  However,
> > > considering that we had been doing freeway travel and he had been
> > > riding in 6th (overdrive) for most of the trip it seemed unlikely we
> > > had been driving aggressively enough to burn through the 3.2 gal tank
> > > that soon.
>
> > > So, sunday night upon return home, I filled her up at a gas station
> > > and began to practice riding around my area.  Monday and Tuesday I did
> > > some more practice riding, and considering I'm a new rider, none of it
> > > was very aggressive, no red lining, so I shouldn't have run though gas
> > > too soon.  Today (Wednesday) after a few great days of riding and
> > > 40ish miles (I reset the odometer after filling up) the bike died on
> > > me and I had to switch to reserve.  It was only at this time that I
> > > had realized she was leaking gas.  Each day I had been noticing a
> > > slight drip below the bike, but had assumed it was condensation coming
> > > from the bike since it was cold.  I hadn't realized that the bike had
> > > been leaking on the ride home, just thought we had gone farther than I
> > > remembered.
>
> > > So, I understand that this isn't much information to go on.  But
> > > here's the spread.  The bike is dripping gas, I hadn't observed it too
> > > often, but this is a noticeable mark on the ground after it has been
> > > still for awhile.  I rode for 40 miles, so it can be assumed that I
> > > actually consumed about 1 gallon, which means that (if you assume
> > > something is left in the reserve portion) the bike has leaked about 2
> > > gallons of fuel over the course of almost exactly 3 days.
>
> > > I know that there's no way from this information that any of you can
> > > "know" what the problem is.  However, knowing where to start looking,
> > > or a few places to start would help me as a new owner.  If any of you
> > > with experience know something that is known to happen with a lot of
> > > nighthawks, or if from the information you can make a guess, or at
> > > least give any clues whatsoever, I would be most appreciative.
>
> > > From one new NH lover to the others, thank you ahead of time,
> > > Zac
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