HDTenEightyP/NetNews huggingface dataset:
From: alavigne@bmerh930.bnr.ca (Andrew Lavigne)
Subject: High speed wobble woes
Organization: Bell Northern Research
Distribution: na
Date: 3 Sep 92 10:51:17


My friend has a 1983 maxim 400 that he claims has a high speed wobble, 
usually starting at about 80mph.  Upon looking at the front forks, everything
seemed to be in order.  Some guy said something about moving the forks up
to reduce bending.  The air pressure in the tire seems ok, too.  
What are the real causes of high speed wobble outside
of external forces (cracks in pavement, wind, etc....)????  I don't want 
Dennis to wipe out!

Thanks,
Andrew
alavigne@bnr.ca
From: lotto@laura.harvard.edu (Jerry Lotto)
Newsgroups: rec.motorcycles
Subject: Re: Countersteering a shafty
Date: 30 Aug 92 23:23:59 GMT
Organization: Chemistry Dept., Harvard University
In-reply-to: mojo@Caere.COM's message of 20 Aug 92 21:54:25 GMT

You aren't crazy at all, at least not on the basis of this discussion
:-)

I posted an attempt to put a stop to this nonsense, but I have not
seen a single follow-up so I am assuming that it never made it to the
other coast.  Who knows?  Anyhoo, this whole discussion stems from a
leap of faith.  Shaft drive motorcycles WILL extend the rear
suspension on acceleration.  That is "shaft effect".  The leap of
faith was that rear extension = front compression.  Of course shafties
weight transfer just like any other motorcycle!  As I pointed out (the
obvious) in my posting, shaft drive sport bike don't do reverse
wheelies...
--
Jerry Lotto <lotto@lhasa.harvard.edu>      "Have you hugged the curves today?"
Chemistry Dept., Harvard Univ.              MSFCI, HOGSSC, BCSO, AMA, DoD #18
From: R.Collins@newcastle.ac.uk (R. Collins)
Newsgroups: rec.motorcycles
Subject: Re: People with 83-85 Nighthawk 650's?
Date: 28 Aug 92 08:34:09 GMT
Followup-To: rec.motorcycles
Distribution: ncl,uk,world
Organization: Computing Laboratory, U of Newcastle upon Tyne, UK NE1 7RU.


In article <BtnDxo.8wH@acsu.buffalo.edu>, v058l789@ubvmsd.cc.buffalo.edu (Ethan A Bowerman) writes:
>
>
>	The subject line pretty much says it all

[vital statistics deleted]

why isn't it faster than my first bike an 89 GS500E 

[bike comparison deleted]  

>I've seen 110mph indicated on the GS and 110mph
>indicated on the Nighthawk.  The speedo's are resonably close in calibration.
				  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

How do you know this?

>
>	Any ideas?
>

Suzuki clocks are notoriously over-optimistic, whereas Mr. Hondas items tend
to be fairly honest.  Also, what about rolling and standing quarter figures, the
650's extra ponies should make an impression there.


>
>
>					Ethan Bowerman  

___
Raybo		DoD#1058		XBR500
Newsgroups: rec.motorcycles
From: thoth@uiuc.edu (Ben Cox)
Subject: Re: HOV lanes
Originator: btc30679@uxa.cso.uiuc.edu
Reply-To: thoth@uiuc.edu (Ben Cox)
Organization: Ancient Illuminated Sears of Bavaria
Date: Tue, 1 Sep 1992 20:45:29 GMT

essbaum@rchland.vnet.ibm.com (Alexander Essbaum) writes:

>what are HOV lanes?  what does HOV stand for?

Funny you should ask; I just found out what that meant yesterday.  
High Occupancy Vehicle.

HOV3 means no vehicles with fewer than 3 occupants are to use that
lane, HOV4 means 4 occupant minimum, etc.

What I find amusing is "HOV3 -- No Motorcycles".  :-)

--
Ben Cox        | DoD #456
thoth@uiuc.edu | '80 KZ 550 LTD
From: stafford@msus1.msus.edu
Newsgroups: rec.motorcycles
Subject: BMW R100RS - Raise handlebar one inch
Date: 31 Aug 92 01:29:40 GMT
Organization: Minnesota State University System


	I need to raise the handelbar on a R100RS ('81) by
	about an inch.  From the looks of the stock riser, this
	would appear to be a common and simple aftermarket
	product.

	Can anyone recommend a source?  Time is of the essence.
	Thanks.

 john
From: dnd@ee.man.ac.uk (Darryl Davis (RA))
Newsgroups: rec.motorcycles
Subject: Re: Countersteering a shafty
Date: 28 Aug 92 13:15:44 GMT
Reply-To: dnd@spec0.ee.man.ac.uk (Darryl Davis (RA))
Organization: Dept Electrical and Electronic Eng, Manchester University, UK

>>>The principal force involved in countersteering is centrifugal!  I used to
>>Centrifugal force is attempting to strip macadam from the road surface and

Hold on, isn`t centrifugal force just that misnomer given to describe the
effect (angular) momentum has?
 
From: frankb@hpsad.sad.hp.com (Frank Ball)
Date: Fri, 28 Aug 1992 17:01:09 GMT
Subject: Re: My bike got vandalized last night
Organization: HP Signal Analysis Division - Rohnert Park, CA
Newsgroups: rec.motorcycles

    >
    >So why the hell did the police let him go before they were sure who he
    >was??????  If he gave a name they type it into the computer.  The computer
    >spits out a physical description, address, and birthday.  Then you give
    >the creep a quiz.  If he can't answer right they bust him for lying to the
    >police.  You may be screwed, and it is all the cops fault.  Typical New

    *So which computer do they type his name into?  Maybe your police have
    *a direct line to the BatComputer, but mine don't.  Or do they have an
    *account on bigbro.kgb.ussr.gov?  Just because a guy gets drunk and upset
    *when someone tried to hassle him (referring to the guys he was fighting
    *with in the bar, not the folks who broke up the fight) doesn't mean he's
    *got a criminal record.  Driver's license, you say?  Suppose he doesn't
    *drive?  There is no legal requirement for him to have any ID at all,
    *and no way to guarantee that even correct information is verifiable in
    *a reasonable period of time.

Well you are in IL and I'm in CA and the other guy was in NJ, but, have you
ever seen a cop without a radio?  They have computers at the station.  
Whenever they do a traffic stop they call in for the drivers record.  He
doesn't have to have a license with him-thats the whole point.  They can
cross reference by name, drivers license number, birthday, or social 
security number.   They can input the name and get back other information.
If the person had:  a drivers license, state ID card, or a criminal record
he is in the computer.  Most people have at least one of the three.  Listen
to a scanner sometime.  My local police department as a channel dedicated
to doing just record checks, and it is busy.

Frank Ball   1UR-M          frankb@hpsad.sad.hp.com
Hewlett Packard   
1212 Valley House Drive     (707) 794-4168 work  (707) 538-3693 home
Rohnert Park CA 94928-4999  KC6WUG Seca 750 XT350 IT175 DoD#7566 I'm the NRA.
Newsgroups: rec.motorcycles
From: dana@locus.com (Dana H. Myers)
Subject: Re: Countersteering a shafty
Organization: Locus Computing Corporation, Los Angeles, California
Date: Fri, 28 Aug 1992 00:07:23 GMT

In article <BOWERS.92Aug27113727@rigel.dfrf.nasa.gov> bowers@rigel.dfrf.nasa.gov (Al Bowers) writes:
>
>Sheesh.  Dana was making a joke guys.  If you didn't get it, then
>maybe you should learn to ride first?  Try taking CLASS or the
>California Superbike School, or even the MSF ERC...
>
>Maybe we should put "THIS IS A JOKE" all over these postings...
>


Maybe we should. Afterall, the original posting and my followups were
jokes. I thought they were outrageous enough as to be funny and not worth
any followups. When the thread got out of hand, I wrote personal notes to
several people in hopes of quietly quelling the disturbance, but, alas,
to no avail.

  I made the subject up, but Al must get credit for encouraging me to
post it (afterall, there really is a conspiracy out to get you). I never
thought it would get this out of hand, though. If you read an obviously
bogus posting, don't feel compelled to publicly denounce it. Respond
privately, or, best yest, ignore it.

  All of the shaft drive bikes I've ever ridden all countersteered
properly, for the record.

Now, stop flaming on this subject. It was a *JOKE*.

Have a nice day.

-- 
 * Dana H. Myers KK6JQ 		| Views expressed here are	*
 * (213) 337-5136 		| mine and do not necessarily	*
 * dana@locus.com  DoD #466 	| reflect those of my employer	*
 * "Dammit Bones, spare me the lecture and give me the shot!"   *
Newsgroups: rec.motorcycles
From: blgardne@javelin.sim.es.com (Dances With Bikers)
Subject: Re: The man without a number
Reply-To: blgardne@javelin.sim.es.com
Organization: Evans & Sutherland Computer Corporation
Date: Fri, 4 Sep 1992 03:18:33 GMT

keith@balrog.dseg.ti.com (Keith A. Schauer) writes:

>And I suppose that now you'll tell me that Deeney really isn't a large african?

Sparrow or swallow?

	I don't know.

Sproing!  Aaaaaaaaaaahhhhhhhhhh!!!!!!!!!!!!!!
-- 
Blaine Gardner @ Evans & Sutherland  blgardne@javelin.sim.es.com  BIX:blaine_g
580 Arapeen Drive, SLC, Utah 84108           Favorite road signs:
Dumper of Dirtbikes #46             FJ1200   Winding Road Next 77 Miles
My other motorcycle is a Quadracer           Caution: Passing Areas Not Marked
From: Richard.A.Swift.1@nd.edu (Richard A. Swift)
Newsgroups: rec.motorcycles
Subject: Almost there.........
Date: 31 Aug 92 19:59:28 GMT
Organization: University of Notre Dame, Aero. & Mech. Eng.
X-Xxmessage-Id: <A6C7E52F2901401C@rswift.aero.nd.edu>
X-Xxdate: Mon, 31 Aug 92 21:03:11 GMT
X-Useragent: Nuntius v1.1.1d9

Ahh... what a trip. Sparks were flyin' from the pegs, lights and sirens
were fading into my rear-views, man I was stoked for a serious
firefight.... But wouldnt you know it, DOD # 555 (Tracy Wiseman) turned
out to be a WOMAN!! And not just any woman, but a seriously curvaceous
babe!!

After first sighting her I thought, "Hmm... maybe, oh just maybe shes an
uptight bitch (TM), or at the very least a female cager (TM)", since I
know the DOD does sanction the extermination of said females. But, alas
this was not the case. Tracy turned out to be a true Biker Woman (tm) (no
longer affiliated with Harley Women(tm)). She was (understandably)
angered by the numbers conflict, but she did graciously agree to not
remove specific of my appendages if I simple left the state in the same
manner that I arrived, at 150+.

Tracy also showed me the proper direction to the KOTL (Ah Ha!!). I WILL
have my number...........

Rich Swift     DOD #......................
From: jeq@i88.isc.com (Jonathan E. Quist)
Newsgroups: rec.motorcycles
Subject: Re: carrying moolah on long trips
Date: 31 Aug 92 21:03:30 GMT
Article-I.D.: i88.1992Aug31.210330.694
Distribution: na
Organization: INTERACTIVE Systems Corporation, Naperville, IL

In article <a1hn2yj@lynx.unm.edu> galway@chtm.eece.unm.edu (Denis McKeon) writes:
>To clarify - the ad campaign caused a brief flurry of protest in the
>riding community at the time.  It was not directed *against* bikers, but
>it did play on the US image of bikers, portraying US bikers as
>anonymous, lawless, and dangerous.  (any resemblance to Usenet,
>rec.moto, or the DoD is purely coincidental :-) )
...
>    I understand that American Express recently produced
>    and aired an ad showing a purse-snatching committed by
>    motorcyclists, with the tag-line "You don't even have to
>    leave the country. It can happen right here in the U.S."
...
>Only recently (in '91) did I hear of a ride-by pillion purse-snatch in
>the US - probably not the first, certainly not the last.  

Probably someone who was inspired by the American Express commercial.
-- 
Jonathan E. Quist                              INTERACTIVE Systems Corporation
jeq@i88.isc.com  '71 CL450-K4 "Gleep", DoD #094        Naperville, IL
        There are many things a person should experience in a lifetime.
       Among them are an infant's first cry, and an infant's first laugh.
From: captain@ccwf.cc.utexas.edu (Bran Muffin)
Newsgroups: rec.motorcycles
Subject: riding in groups
Date: 4 Sep 92 07:25:14 GMT
Organization: The University of Texas at Austin, Austin TX


I've only been riding in groups a short while now, but I'm noticing
quite a variety of group riding tactics, some of which don't go well
together.

So, my question to all you experienced, knowlegeble group riders is:
what are the rules for riding in groups?  Where should one ride in
relation to others; how should one pass other riders; what is the
recommended space cushion; what signals are used to communicate
with one another, etc.???

I've read the MSF book, but it fails to take into account a huge
group of squids travelling at mach .1 as they ride 3 feet off 
your rear tire, and scream by you in tight corners. 

Rather than tell these guys to just get lost, I'd like to educate
them in the socially acceptable ways of group riding.  Surely there
is some way that squids, Big Dods, and little dods can all group
ride safely, yet funly (-;  together.


-- 
|The opinions expressed above are merely the result of random synaptic firings|
|A little sixty-nine would be just fine,                             -   O    |
|So let's cut all this talk, just climb on my Hawk!                    |      |
|captain@ccwf.cc.utexas.edu  (Brian Murfin)  DoD# 0690  nt650gt     \_^___/   |

Newsgroups: rec.motorcycles
From: laszlo@eclipse.cs.colorado.edu (Laszlo Nemeth)
Subject: Re: More reserve switch questions
Organization: University of Colorado Boulder, Pizza Disposal Group
Date: Thu, 3 Sep 1992 23:15:09 GMT

In article <1532@seqp4.sequoia.com>, cantrell@seqp4.sequoia.com (Paul Cantrell) writes:
|> [general discussion about various reserve switch setups deleted]
|> 
|> Dumb question, but:

they always are or i wouldn't bother responding

|> Although reserve switches are very simple, they have several problems
|> that accurate fuel gauges do a better job of addressing, IMHO:
|> 
|> 1)	If you forget to switch back to "ON" at the gas station, you
|> 	may run the tank dry.

i always turn off the gas flow to the carbs for several reasons
one: i rode a BMW (gas slowly leaks out oh carbs)
two: i rode a vespa (once in a blue moon you could get the carb open
with cylinder head down and drain most of your tank)

|> 2)	No good feedback on a particular trip about how fast gas is
|> 	being consumed. A good fuel gauge, a tripometer, and some
|> 	experience with the fuel gauge lets you predict with very
|> 	good accuracy how much further you can traval before needing
|> 	fuel.

so? if your going through a long streach of nothing fillup.
i have the 6 gallon tank so i don't worry unless the nothing
is ~200 miles

|> 3)	Having to switch from "ON" to "reserve" requires taking a
|> 	hand off the handlebar while riding, not to mention the problem
|> 	when you are forced to switch to reserve at high speed (you
|> 	decelerate suddenly, creating a hazard to following vehicles).

YEAH but this is the fun part on long trips! "HOT DAMN finally reserve!
(flop leg out to the side swerve alot to scare cagers and switch it)
alright lets see got another 20-40 miles before i stop!!! so do i need 
to slow down and conserve fuel or not? well lets see........" or
as i see it finally something to think about other then the road

|> 4)	If the reserve amount is not enough to make it to a gas station,
|> 	you end up trying to predict remaining fuel based on odometer.
|> 	This is possible, not even that difficult, but to my way of
|> 	thinking not as good as a gauge.

or get a bmw with three effective tanks each reserve worth about 20
miles if you aren't heavy fisted on the throttle and slow down to 50
from dod nominal.

|> A minimal motorcycle certainly doesn't require a fuel gauge, and a reserve
|> switch is a simple, inexpensive option, but for a nice road bike, why don't
|> they all just have accurate fuel gauges? I haven't used the "reserve"
|> setting on my ZX-10 yet, and I don't plan to, either.

i would watch that. i purposely run out of gas on each side (not
at the same time) every once in a while to clear out spooge. yes 
i have fuel filters but getting ride of a winters worth of water 
that is taking up space my gas could be using is worth it.


Laszlo Nemeth
pond_scum_sucker@cs.colorado.edu
"helmet laws are a great idea"
"My you have a long dipstick" Jill Lundquist
"There so ugly I don't even want to look at them." Mikii in reference to
goldwings
Not many men can say they made a woman orgasm and laugh at the same time.
DoD #0666          UID #1999
From: myoung@joker.asd.sgi.com (Mark Young)
Newsgroups: rec.motorcycles
Subject: 1992/93 Kawaski ZX-6 or CBR600F2: Comments please...
Date: 23 Aug 92 17:05:59 GMT
Organization: Silicon Graphics, Inc.  Mountain View, CA

I'm considering getting a bike again after over seven years of being trapped
inside my car.  After looking around, I'm thinking about a 600 class machine.

I looked at the FZR600, but the impressions in the tank were too close for my
knees.

It looks like it might be the CBR600F2 or the ZX-6, base on comfort of riding
position, with the ZX-6 slightly ahead due to peg position.

I was wondering if anyone could offer any insights.  I've been told that the
ZX-6 is less of a track bike and more of a road bike, which would be ok with 
me considering I'd be commuting during the week and riding for fun on the
weekends.

what else should I be thinking before purchasing?  what about kawaski
reliability...I've always riden Honda street bikes in the past.

talk to me.

...myoung
Newsgroups: rec.motorcycles
From: cdw2t@dayhoff.med.Virginia.EDU (Clifford David Weston)
Subject: Re: outstanding MC parking (wuz Re: Motorcyclists get a break.)
Organization: University of Virginia
Distribution: usa
Date: Fri, 28 Aug 1992 12:00:16 GMT

In article <17jki7INNdh4@cs.utexas.edu> osborn@cs.utexas.edu (John Howard Osborn) writes:

>I don't own a car either.  (My VW is non-functional and hasn't been used
>this year.)

then you *do* own a car (if we may flatter the vw :-)

>I'm curious about what people ride when riding is the only choice.
>So, if you don't own a car, tell us what you ride.

had an acura integra, sold it last fall, got the seca2 in the spring.
ride it every day, irrespective of weather (we get little snow in
central va).  heavy rain sucks.

---------------
cliff weston
dod# 0598

i love the fiamms.
the fiamms are my friends.
Newsgroups: rec.motorcycles
From: karr@cs.cornell.edu (David Karr)
Subject: Re: Countersteering a shafty
Organization: Cornell Univ. CS Dept, Ithaca NY 14853
Date: Fri, 28 Aug 1992 03:59:30 GMT

In article <1666@shaman.wv.tek.com> harmons@.WV.TEK.COM (Harmon Sommer) writes:
>Sender: 
>Reply-To: harmons@mithril.WV.TEK.COM (Harmon Sommer)
>Followup-To: 
>Distribution: 
>Organization: /usr/ens/etc/organization
>Keywords: 
>
>>The principal force involved in countersteering is centrifugal!  I used to
>
>A Newtonian view:
>
>The primary forces acting on a bike in a turn (excluding aerodynamic forces)
>are gravity (down), road force (up) and centripetal (inward).

And just where (other than gravity or the road) does the centripetal force
come from?

>In a turn the road force balances gravity and centripetal provides a righting
>moment which balances the capsize moment caused by gravity acting on the 
>CG which, when leaning into a turn, is not centered over  the tires.
>
>No force called centrifugal is acting on the bike; it is a force in reaction
>to the centripetal force generated by the tires on the road surface. 
>Centrifugal force is attempting to strip macadam from the road surface and
>move it outward.

Ah yes, another victim of high school physics.  Welcome to the club!

-- David Karr (karr@cs.cornell.edu)
-- '80 BMW R65   BMWMOA #36829   DoD #0969   NRA #CDF6091M
From: kretz@remus.rutgers.edu (Kevin Kretz)
Newsgroups: rec.motorcycles
Subject: Re: Cleaning O ring chains
Summary: Why WD-40 is NFG for chain lube
Date: 23 Aug 92 17:02:11 GMT
Organization: Rutgers Univ., New Brunswick, N.J.

In article <RAIBLE.92Aug21124440@wk43.nas.nasa.gov>, raible@nas.nasa.gov (Eric Raible) writes:
> 
> In article <1992Aug21.055835.5003@research.nj.nec.com> behanna@phoenix.syl.nj.nec.com (Chris BeHanna) writes:
> 
> 	   The o-rings are rubber, a petroleum-based product.  WD-40 is a
>    petroleum-based product.  The two are miscible.  The o-rings will soak up
>    WD-40 and swell (a bad thing).  They will also deteriorate slightly.  Very
>    bad plan.  Someone else here reported very good results using kerosene. 

Well, if kerosene isn't a petroleum product, then I had the wrong
chemistry teacher.

	The reason WD-40 is bad for chain lube is that, to enhance its
ability to get into nooks and crannies (like stuck bolts) it has a
chemical (whose name is common but I can't remember and I'm not going
out to my garage just to find out) that is more volatile than WD-40's
active ingredients to make them thinner.  This will disssolve any
sticky chain lube you have left, even between the rings, and eat the
rubber.  I have always heard good things about kerosene, too.

						Kevin
Newsgroups: rec.motorcycles
From: karr@cs.cornell.edu (David Karr)
Subject: Re: Countersteering a shafty
Organization: Cornell Univ. CS Dept, Ithaca NY 14853
Date: Fri, 28 Aug 1992 03:55:09 GMT

In article <BOWERS.92Aug27113727@rigel.dfrf.nasa.gov> bowers@rigel.dfrf.nasa.gov (Al Bowers) writes:
>In article <BtKxIz.B01@Caere.COM> mojo@Caere.COM (Morris Jones) writes:
>
>>The principal force involved in countersteering is centrifugal!  [...]
>
>Say _WHAT_?!?  There is no such thing as a _centrifugal_ force.  It
>simply does not exist (look it up in any college physics text that you
>wish).

Well, *I* chose to look it up in _Classical_Mechanics_ by Herbert
Goldstein, which is admittedly a little more advanced than your
ordinary college physics textbook  :-).  I found the following
reference in a section on the coriolis force (which is yet another
of your "imaginary" forces):

"Terrestrial measurements are usually made with respect to a
coordinate system fixed in the earth, which therefore rotates
uniformly with a constant angular velocity \omega relative to the
inertial system. [...]  Finally, the equation of motion [...] expands,
when expressed in the rotating coordinates, into the equation

[there follow some manipulations of formulas]

"The last term [...] is simply THE FAMILIAR CENTRIFUGAL FORCE."
(Emphasis mine.)

A turning motorcycle DOES experience centrifugal force IN THE FRAME OF
REFERENCE IN WHICH IT IS TRAVELING, and General Relativity says this
is as valid a frame of reference as a true Newtonian frame.

> This allows
>lean, and then you create a _centripetal_ acceleration in the
>direction of the lean to stop from falling over.  The centripetal
>force is caused by the radius and the velocity in the corner.

Frankly, I find this explanation much worse than the "centrifugal
force" version.  How can I keep from falling over by creating an
ADDITIONAL acceleration in the same direction I'm already leaning?
And the curve in the bike's path does not CAUSE the centripetal force,
you need the centripetal force in order to make the bike's path curve
in the first place!

>Sheesh.  Dana was making a joke guys.

Yeah, well, a lot of people have already burned themselves on this
thread.  You can join the club!  ("Centripetal acceleration" indeed!)

>Maybe we should put "THIS IS A JOKE" all over these postings...

Maybe ...

-- David Karr (karr@cs.cornell.edu)
-- '80 BMW R65   BMWMOA #36829   DoD #0969   NRA #CDF6091M



Newsgroups: rec.motorcycles