Re: [ST] Calling on the collective wisdom of the list...

["Young, Mike" <myoung@xxxxxxxxxxx>]

Not familiar with those pumps. Are they diaphragm type? If so, is there
any possibility that little critters have taken up residence in the vent
plumbing BEHIND the diaphragm? You really don't want to hear about how I
know to ask that question.... 
It would also be worthwhile to see if there is any way for oil to
accumulate behind the diaphragm. The pump output might degrade rapidly,
and after a few minutes with the engine not running the oil drains out
and the vehicle runs fine for a while. I have seen that on two different
Japanese vehicles where the oil drain line from the back of the fuel
pump either clogged with muck or kinked when an aftermarket exhaust
system was installed and the hose was re routed. 

Mike 
'06 ST 
Seattle

-----Original Message-----
From: st-bounces@xxxxxxxxxxxxxxxxxxxx
[mailto:st-bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of Jeremy Witt
Sent: Monday, March 26, 2007 7:20 AM
To: ST@xxxxxxxxxxxxxx
Subject: Re: [ST] Calling on the collective wisdom of the list...

That's what I thought about mine the first time it temporarily stranded
me just north of Scranton, PA on the way to GA.  I did have a magnetic
tank bag over the cap.  But, no rush of air, and no start for about 15
minutes.  Had the airbox off, checking the carbs, found no issue.  Put
it all back together, and it started right up.  Ran fine for another
2000 miles at least before it happened again.  

I finally took the pump off and had a mechanic test it.  That's when I
learned it was pushing less that 100% fuel, often close to 25%.  80's
Honda fuel pumps, might be related.  :0)

Jeremy Witt
Newbury Partners
www.newburypartners.com
(o) 603-893-3022
(c) 603-475-4228
-----Original Message-----
From: st-bounces@xxxxxxxxxxxxxxxxxxxx
[mailto:st-bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of simonb@xxxxxxxxxxx
Sent: Monday, March 26, 2007 8:53 AM
To: st@xxxxxxxxxxxxxxxxxxxx
Subject: Re: [ST] Calling on the collective wisdom of the list...

Quoting Jeremy Witt <Jeremy@xxxxxxxxxxxxxxxxxxx>:

Could be an air breather problem in the tank.

> I had similar symptoms on my 88 Honda Hawk GT a few years ago.  Turned
out
> to be a fuel pump that was pushing about 25% of the volume of fuel it
was
> meant to.  The bike ran for a while, then died.  Got trailered home
and
> started right up.  Ran for a few days, then died again.  Repeat a
third
> time.
>
> J
>
> ________________________________
>
> From: st-bounces@xxxxxxxxxxxxxxxxxxxx on behalf of John Ulizzi
> Sent: Sun 3/25/2007 5:19 PM
> To: hsta@xxxxxxxxxxxx; st@xxxxxxxxxxxxxx
> Subject: [ST] Calling on the collective wisdom of the list...
>
>
>
> Howdy folks, I need some help...
>
> I am out in Arizona visiting my mother, trying to get
> the bugs out of my '85 Shadow 1100 that I left out
> here last year. I put it up for storage correctly,
> running stabilizer through the fuel system and then
> draining the carbs. Initially, it was hard to start,
> as though it was not getting fuel. Once it fired, it
> ran fine. Went for a ride. Bike rolls to a stop after
> about 50 miles as though it had run out of gas. Fiddle
> with the fuel system, check pump for flow, etc, all
> good. Start her up and ride 20 miles home without
> further incident, but bike not running perfectly,
> missing a bit on idle. Check fuel cut relay, output
> voltage way down from where it shoud be. Find another
> used relay, same voltage. Go out for another ride.
> Bike quits again, but after 25 miles...for a good half
> hour or so, the bike runs perfectly. Here is where it
> gets weird...After it quits, it will not start right
> away. Wait a bit, bike fires up, runs rough. Run for
> half a mile or so, stalls again. Coast ( this bike
> will coast forever, thak God) for a few minutes, fire
> up and run rough again. I limped home this way,
> running under power for several hundred yards and then
> coasting for several hundred yards, for 20 miles
> yesterday...I am at my wits end here, dunno if it's a
> fuel issue or a spark issue, and the troubleshooting
> guide in the factory service manual is about as useful
> as tits on a bull. Its not a vapor lock in the tank, I
> ran the bike with the tank cover open.It is also not
> the charging system. As many times as I had to crank
> it to get it started, if the charging system was
> faulty, surely I would have ran the battery down. The
> fuel pump, when the line is disconnected from the
> carbs, emits a stream that would make even a young man
> envious, so I am guessing it is not the pump...Who
> knows about the relay. Voltage is off of what the
> manual says it should be, but both relays are within a
> fraction of each other...
>
> Looking for a couple things here:
>
> 1) Any advice that might help me troubleshoot and
> localise the problem.
>
> or
>
> 2) Any advice on a reputable and reliable service shop
> in the Phoenix area, preferably on the north west
> side.
>
> or
>
> 3) The name of an active local list her in Phoenix in
> the absence of the first two above.
>
> Any info appreciated...
>
> Thanks,
>
> John
>
>
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>
>
>


--
SimonB

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