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stalling at speed
Posted: Wed Aug 15, 2001 8:34 pm
by Leon Droby
I was riding today on the highway (between 70 and 80 mph) with 240 miles
gone on the tank (usually it goes on reserve around 250). The bike cut out
for half a second like it was running out of gas. I thought that it was
strange to be hitting reserve so early and that usually it runs out
gradually. This kind of came on all at once.
So I put it on reserve and exited the highway. I rode for another 15
minutes when the bike bogged down and stalled. There was still fuel in the
tank.
I tried different configurations of normal / reserve and gas cap open /
closed (in case the vent was blocked). I finally made it home on reserve
with the cap open.
When I filled the tank up with gas, it took 5.3 gallons so I know I reached
the reserve part of the tank. I then closed up the cap and managed to ride
home with the petcock in the normal position (and cap closed). Granted, it
wasn't that far from the gas station to my house, but it seems like
everything is back to normal.
Any ideas what happened? Could it be a vent problem that only happens when
the tanks is near empty or the petcock is on reserve?
Thanks,
Leon Droby
Gherkin - A14
Uxbridge, MA
stalling at speed
Posted: Wed Aug 15, 2001 11:16 pm
by Peter Dahlheimer, MD
was it raining or had you gone through mud/water recently?
search the archives for the likely solution to this problem. it involves
putting a "T" in one of the carb vent hoses to avoid that hose getting
blocked with dirt/rain/whatever.
> -----Original Message-----
> From: Leon Droby [mailto:ldroby@...]
> Sent: Wednesday, August 15, 2001 7:33 PM
> To: KLR Mailing List
> Subject: [DSN_klr650] Stalling at Speed
>
>
> I was riding today on the highway (between 70 and 80 mph) with 240 miles
> gone on the tank (usually it goes on reserve around 250). The
> bike cut out
> for half a second like it was running out of gas. I thought that it was
> strange to be hitting reserve so early and that usually it runs out
> gradually. This kind of came on all at once.
>
> So I put it on reserve and exited the highway. I rode for another 15
> minutes when the bike bogged down and stalled. There was still
> fuel in the
> tank.
>
> I tried different configurations of normal / reserve and gas cap open /
> closed (in case the vent was blocked). I finally made it home on reserve
> with the cap open.
>
> When I filled the tank up with gas, it took 5.3 gallons so I know
> I reached
> the reserve part of the tank. I then closed up the cap and
> managed to ride
> home with the petcock in the normal position (and cap closed).
> Granted, it
> wasn't that far from the gas station to my house, but it seems like
> everything is back to normal.
>
> Any ideas what happened? Could it be a vent problem that only
> happens when
> the tanks is near empty or the petcock is on reserve?
>
> Thanks,
> Leon Droby
> Gherkin - A14
> Uxbridge, MA
>
>
> Visit the KLR650 archives at
>
http://www.listquest.com/lq/search.html?ln=klr650
>
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DSN_klr650@yahoogroups.com
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>
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stalling at speed
Posted: Wed Aug 15, 2001 11:50 pm
by Kurt Simpson
I've always claimed there are two running/stalling issues...the first is
well-documented, the rain/water thing cured by the T-Vent. This is the mystery
stalling...high speed in high temps...it happened to me many times.
Kurt
-----Original Message-----
From: Peter Dahlheimer, MD [mailto:dahlheim@...]
Sent: Wednesday, August 15, 2001 10:18 PM
To: ldroby@...; KLR Mailing List
Subject: RE: [DSN_klr650] Stalling at Speed
was it raining or had you gone through mud/water recently?
search the archives for the likely solution to this problem. it involves
putting a "T" in one of the carb vent hoses to avoid that hose getting
blocked with dirt/rain/whatever.
> -----Original Message-----
> From: Leon Droby [mailto:ldroby@...]
> Sent: Wednesday, August 15, 2001 7:33 PM
> To: KLR Mailing List
> Subject: [DSN_klr650] Stalling at Speed
>
>
> I was riding today on the highway (between 70 and 80 mph) with 240 miles
> gone on the tank (usually it goes on reserve around 250). The
> bike cut out
> for half a second like it was running out of gas. I thought that it was
> strange to be hitting reserve so early and that usually it runs out
> gradually. This kind of came on all at once.
>
> So I put it on reserve and exited the highway. I rode for another 15
> minutes when the bike bogged down and stalled. There was still
> fuel in the
> tank.
>
> I tried different configurations of normal / reserve and gas cap open /
> closed (in case the vent was blocked). I finally made it home on reserve
> with the cap open.
>
> When I filled the tank up with gas, it took 5.3 gallons so I know
> I reached
> the reserve part of the tank. I then closed up the cap and
> managed to ride
> home with the petcock in the normal position (and cap closed).
> Granted, it
> wasn't that far from the gas station to my house, but it seems like
> everything is back to normal.
>
> Any ideas what happened? Could it be a vent problem that only
> happens when
> the tanks is near empty or the petcock is on reserve?
>
> Thanks,
> Leon Droby
> Gherkin - A14
> Uxbridge, MA
>
>
> Visit the KLR650 archives at
>
http://www.listquest.com/lq/search.html?ln=klr650
>
> Post message:
DSN_klr650@yahoogroups.com
> Subscribe:
DSN_klr650-subscribe@yahoogroups.com
> Unsubscribe:
DSN_klr650-unsubscribe@yahoogroups.com
> List owner:
DSN_klr650-owner@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
>
_________________________________________________________
Do You Yahoo!?
Get your free @... address at
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Visit the KLR650 archives at
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Post message:
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Subscribe:
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stalling at speed
Posted: Thu Aug 16, 2001 6:03 am
by Leon Droby
No, it was sunny and in the low to mid eighties.
Leon
> -----Original Message-----
> From: Peter Dahlheimer, MD [mailto:dahlheim@...]
> Sent: Thursday, August 16, 2001 12:18 AM
> To: ldroby@...; KLR Mailing List
> Subject: RE: [DSN_klr650] Stalling at Speed
>
>
> was it raining or had you gone through mud/water recently?
>
> search the archives for the likely solution to this problem. it involves
> putting a "T" in one of the carb vent hoses to avoid that hose getting
> blocked with dirt/rain/whatever.
>
>
>
> > -----Original Message-----
> > From: Leon Droby [mailto:ldroby@...]
> > Sent: Wednesday, August 15, 2001 7:33 PM
> > To: KLR Mailing List
> > Subject: [DSN_klr650] Stalling at Speed
> >
> >
> > I was riding today on the highway (between 70 and 80 mph) with 240 miles
> > gone on the tank (usually it goes on reserve around 250). The
> > bike cut out
> > for half a second like it was running out of gas. I thought that it was
> > strange to be hitting reserve so early and that usually it runs out
> > gradually. This kind of came on all at once.
> >
> > So I put it on reserve and exited the highway. I rode for another 15
> > minutes when the bike bogged down and stalled. There was still
> > fuel in the
> > tank.
> >
> > I tried different configurations of normal / reserve and gas cap open /
> > closed (in case the vent was blocked). I finally made it home
> on reserve
> > with the cap open.
> >
> > When I filled the tank up with gas, it took 5.3 gallons so I know
> > I reached
> > the reserve part of the tank. I then closed up the cap and
> > managed to ride
> > home with the petcock in the normal position (and cap closed).
> > Granted, it
> > wasn't that far from the gas station to my house, but it seems like
> > everything is back to normal.
> >
> > Any ideas what happened? Could it be a vent problem that only
> > happens when
> > the tanks is near empty or the petcock is on reserve?
> >
> > Thanks,
> > Leon Droby
> > Gherkin - A14
> > Uxbridge, MA
> >
> >
> > Visit the KLR650 archives at
> >
http://www.listquest.com/lq/search.html?ln=klr650
> >
> > Post message:
DSN_klr650@yahoogroups.com
> > Subscribe:
DSN_klr650-subscribe@yahoogroups.com
> > Unsubscribe:
DSN_klr650-unsubscribe@yahoogroups.com
> > List owner:
DSN_klr650-owner@yahoogroups.com
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
>
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stalling at speed
Posted: Thu Aug 16, 2001 6:03 am
by Leon Droby
Kurt, what do you do to get going again? Open the gas cap? Just wait it
out?
BTW, the first notice of a problem was at 80 mph (it didn't stall; just
hesitated like it was running out of gas). I needed to get off the highway
right after that. Then about ten minutes later is when the bike stalled
repeatedly. I was only doing about 40 to 50 mph.
Leon
> -----Original Message-----
> From: Kurt Simpson [mailto:editor@...]
> Sent: Thursday, August 16, 2001 12:46 AM
> To: Peter Dahlheimer, MD; ldroby@...; KLR Mailing List
> Subject: RE: [DSN_klr650] Stalling at Speed
>
>
> I've always claimed there are two running/stalling issues...the first is
> well-documented, the rain/water thing cured by the T-Vent. This
> is the mystery
> stalling...high speed in high temps...it happened to me many times.
>
> Kurt
>
stalling at speed
Posted: Thu Aug 16, 2001 6:48 am
by Kurt Simpson
Kurt, what do you do to get going again? Open the gas cap? Just wait it
out?
BTW, the first notice of a problem was at 80 mph (it didn't stall; just
hesitated like it was running out of gas). I needed to get off the highway
right after that. Then about ten minutes later is when the bike stalled
repeatedly. I was only doing about 40 to 50 mph.
____________
As I recall (and I was operating on instinct trying different things without coming
to a conclusion), I would fill the gas tank (opening the gas cap at the same time)
and let it rest. Mr. "T" what do you think?
Kurt
stalling at speed
Posted: Thu Aug 16, 2001 9:37 am
by Ted Palmer
Kurt Simpson wrote:
[...]
> As I recall (and I was operating on instinct trying different things without coming
> to a conclusion), I would fill the gas tank (opening the gas cap at the same time)
> and let it rest. Mr. "T" what do you think?
Leon's problem sounds to me like a venting issue, or possibly the
vacuum feed to the tap.
On a bike as young as an A14 those factors should not be a a big
problem but who knows?
Kurt, the high speed miss you mentioned in an earlier post suggests
to me the vac tap could be a problem in that situation.
The bike would be running a fairly large throttle opening in those
conditions which may not give a strong enough vac signal to open the
tap quite enough.
I suppose the only way to test this theory is to remove the diaphragm
spring from the tap.
Just guessing.
As my 600 neither has a vac tap or the locking tank cap I haven't
needed to go deep into it.
Mister_T
Melbourne Australia
stalling at speed
Posted: Thu Aug 16, 2001 10:09 am
by monahanwb@yahoo.com
--- In DSN_klr650@y..., "Leon Droby" wrote:
Then about ten minutes later is when the bike stalled
> repeatedly. I was only doing about 40 to 50 mph.
>
> Leon
Weak vacuum to the petcock most likely. Heat makes the already too
soft vacuum lines even softer. Any turn or pinch and you've got
reduced vacuum. Then the fuel flow either slows or stops.
re:a stupid way to die - stalling at speed
Posted: Wed Feb 13, 2008 7:52 pm
by Dan Taylor
The thought of running out of fuel (or electric power) in the middle lane of
the freeway doesn't sound pretty. I can imagine hoping that the cars behind
me would be paying attention enough to slow down or stop, while i look for
an opportunity to push the bike across lanes of oncoming traffic in order to
get to the side of the road. But what if the driver of the car behind you
was impatient and went around you? This would leave you exposed to more
high speed traffic from behind, with drivers in all lanes being distracted
by the cars in your lane that were quickly changing into their lanes in
order to go around you.
To avoid the above scenario, i usually put the petcock on reserve when i see
the trip odometer approaching the point of needing that, and then filling up
soon after. But what about an electrical system failure? Are there any
pro-active measures that you can take in order to avoid that?
Dan in Pasadena
05 KLR650
[Non-text portions of this message have been removed]