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odometer issues on 90/6
I have a 1976 R90/6 and it’s recently had some strange issues with the odometer.
The speedometer works just fine, but recently I looked down at the odometer and it wasn’t turning. Even stranger, it was showing about 40,000 miles on it when it was working. When I looked down today it was showing 950!
I rotated the tripmeter to zero it out and drove around several miles. It moved, but only by .6 miles. And now the odometer is showing over 70,000 miles!
Something is very strange.
I removed the cable and it seems to spin normally with the bike in drive and the wheel spinning. And the speedometer seems normal. Other than a little vibration.
Any suggestions?
Thanks,
David LeMaire
Trumbull, CT.
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Its a increídible story, I think Lutz adds a bit of show, anyhow, he was a Genius as well as Muth.
Thank you very much Mac.
Tito
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El 15 jun 2020, a las 12:57, Mac Kirkpatrick <drbeemer73@...> escribió:
? Article about Bob Lutz and Hans Muth:
I thought I had sent this to the R90sWorldnet......maybe not.
Mac Kirkpatrick Glenmoore, PA
"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
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Article about Bob Lutz and Hans Muth:
I thought I had sent this to the R90sWorldnet......maybe not.
Mac Kirkpatrick Glenmoore, PA
"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
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Re: Front Brake Dragging Question
Same with mine, Martin-
If folks are still on original caliper pistons after 45 years, chances are there's some corrosion, chances are the pistons are dragging while trying to retract.
Best-
George
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When mine did this, I had corroded pistons. I rebuilt the calipers with pistons from Bench Mark Works.They were half the price of OEM and have performed flawlessly. FYI. Thanks, Vech!
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Re: Front Brake Dragging Question
When mine did this, I had corroded pistons. I rebuilt the calipers with pistons from Bench Mark Works.They were half the price of OEM and have performed flawlessly. FYI. Thanks, Vech!
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Re: Front Brake Dragging Question
Make sure the the master cylinder is not mounted too far rearward and the arm isn’t hitting on the tank. It happened to me. Just take the tank off and recheck for brake drag.
Jerry Hale
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I was taught from an early age to get the vehicle moving to speed the warm-up process.? Having said that, I also learned to ride/drive gently? until the coolant (if applicable), and more importantly, the oil temperature were at safe operating parameters.? Sadly, most vehicles are not equipped with oil temperature gauges.
Also, to update you all on my travails with my choke lever,? Lars Hens was kind enough to remind me to check the tightness of the nut inside the air box.? The nut was indeed tight.? However, the screw itself was not tight enough.? After tightening the screw and then the nut the lever operated as designed.? This is one of many reasons why I don't repair cars and motorcycles for a living.? I'd starve.
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Mac,
That is the truth. Mine needs the choke to start, but does not want
anything to do with it once it is running. When it is cold, I can leave
it on for 20-30 sec. When it is warm out (engine cold) I have to take the
choke off almost immediately 3-5 sec. What works, works.
Ride Safe,
Joe
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Frank, how I ride off depends on the ambient temperature, and the settings
and habits of the particular machine I am on as each is different.
I do ride off with the choke still on in many cases, otherwise the bike
may
not keep running, but as I said, it depends on the temperature and the
bike. As soon as I feel the bike does not need the choke any longer, I
turn
it off.
And feathering of the throttle on a bike with Dellortos shoots gas into
the
engine as it has accelerator pumps, other bikes may have Bings and no such
pumps.
It's kind of like a gun, even if you have two identical guns, one may
shoot
better with X brand ammo versus the other which may shoot better with Y
ammo.
I think it's whatever works, as long as the choke is turned off as soon as
possible.
Mac Kirkpatrick
Glenmoore, PA
"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
On Wed, Jun 10, 2020 at 6:28 AM Frank ---Down Under <r90s@...>
wrote:
A few days ago Steve Ross, when inquiring about the choke lever said "
*It
looked to me like the lever is supposed to be kept open by friction so
one
can ride away while the engine is still cold". * I'm curious, do members
ride away with a cold engine??
In my case, whilst looking at the oil pressure light, depress the start
button (if the light doesn't go out within 2 seconds I switch off the
engine.)
I hold the throttle at around 12-1400 revs, run the engine for around 20
seconds before switching off the choke. I continue to feather the
throttle
at those revs and gradually increase to 15-1700revs with a brief spin to
get the alternator light to go out and check the voltmeter. Within a
minute
of starting, the engine is idling unaided, put on helmet and gloves and
ride away. After a few kilometres at around 27-3000 revs the engine,
gearbox, shaft and diff oil has reach operating temperature.
Mechanical sympathy tells me never to ride off with the choke on and a
cold engine. Anyone else agree with me??
What?�?s your cold start procedure?
--
Joe Dille
Telford PA
What happens on earth stays on earth
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I start me R90S with the choke (enrichener) full on, make sure the oil & charging lights are off, take the bike off the center stand and ride off. Once I’m out of the driveway, I usually take off the choke within a couple of hundred feet and Bob’s your uncle.
Gentle riding with the choke on is a perfectly reasonable way to warm up the bike and should be no worse for the bike than warming up while stationary.
Bill in NH
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On Jun 10, 2020, at 6:28 AM, Frank ---Down Under < r90s@...> wrote:
A few days ago Steve Ross, when inquiring about the choke lever said "? It looked to me like the lever is supposed to be kept open by friction so one can ride away while the engine is still cold". ?I'm curious, do members ride away with a cold engine?? In my case, whilst looking at the oil pressure light, depress the start button (if the light doesn't go out within 2 seconds I switch off the engine.) I hold the throttle at around 12-1400 revs, run the engine for around 20 seconds before switching off the choke. I continue to feather the throttle at those revs and gradually increase to 15-1700revs with a brief spin to get the alternator light to go out and check the voltmeter. Within a minute of starting, the engine is idling unaided, put on helmet and gloves and ride away. After a few kilometres at around 27-3000 revs the engine, gearbox, shaft and diff oil has reach operating temperature. Mechanical sympathy tells me never to ride off with the choke on and a cold engine. Anyone else agree with me???????? What’s your cold start procedure?
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Frank, how I ride off depends on the ambient temperature, and the settings and habits of the particular machine I am on as each is different.? I do ride off with?the choke still on in many cases, otherwise the bike may not keep running, but as I said, it depends on the temperature and the bike. As soon as I feel the bike does not need the choke any longer, I turn it off.
And feathering of the throttle on a bike with Dellortos shoots gas into the engine as it has accelerator pumps, other bikes may have Bings and no such pumps.
It's kind of like a gun, even if you have two identical guns, one may shoot better with X brand ammo versus the other which may shoot better with Y ammo.?
I think it's whatever works, as long as the choke is turned off as soon as possible.
Mac Kirkpatrick Glenmoore, PA
"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
On Wed, Jun 10, 2020 at 6:28 AM Frank ---Down Under < r90s@...> wrote: A few days ago Steve Ross, when inquiring about the choke lever said "?It looked to me like the lever is supposed to be kept open by friction so one can ride away while the engine is still cold". ?I'm curious, do members ride away with a cold engine??
In my case, whilst looking at the oil pressure light, depress the start button (if the light doesn't go out within 2 seconds I switch off the engine.)
I hold the throttle at around 12-1400 revs, run the engine for around 20 seconds before switching off the choke. I continue to feather the throttle at those revs and gradually increase to 15-1700revs with a brief spin to get the alternator light to go out and check the voltmeter. Within a minute of starting, the engine is idling unaided, put on helmet and gloves and ride away. After a few kilometres at around 27-3000 revs the engine, gearbox, shaft and diff oil has reach operating temperature.
Mechanical sympathy tells me never to ride off with the choke on and a cold engine. Anyone else agree with me????????
What’s your cold start procedure?
|
A few days ago Steve Ross, when inquiring about the choke lever said "? It looked to me like the lever is supposed to be kept open by friction so one can ride away while the engine is still cold". ?I'm curious, do members ride away with a cold engine??
In my case, whilst looking at the oil pressure light, depress the start button (if the light doesn't go out within 2 seconds I switch off the engine.)
I hold the throttle at around 12-1400 revs, run the engine for around 20 seconds before switching off the choke. I continue to feather the throttle at those revs and gradually increase to 15-1700revs with a brief spin to get the alternator light to go out and check the voltmeter. Within a minute of starting, the engine is idling unaided, put on helmet and gloves and ride away. After a few kilometres at around 27-3000 revs the engine, gearbox, shaft and diff oil has reach operating temperature.
Mechanical sympathy tells me never to ride off with the choke on and a cold engine. Anyone else agree with me????????
What’s your cold start procedure?
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Re: Front Brake Dragging Question
As Todd mentioned there is a cool trick to align the pads parallel to the rotor. Take a black sharpie and make a series of lines like spokes on the surface of the rotor. Pull the cap off at the bottom of the pivot pin and you will see a slot. Gently squeeze the hand brake while you spin the wheel. ?The pads will wipe off the black ink. Adjust the eccentric until you can wipe off the most ink from the rotor. Now the pads will have the most contact and you can see if they are dragging.
Rchard Chawes
On Jun 9, 2020, at 10:53 AM,?
Todd Trumbore via groups.io < motorrader@...> wrote:
With four brake pads, there will almost always be some slight drag, but being very careful to adjust the eccentric precisely on both sides will help quite a bit.? Of course he will want to clean and re-grease his front and rear wheel bearings, since this is a new bike to him and he doesn’t know when it was done last.? Also may as well lube the input shaft spline and the rear wheel drive spline while he is at it. ? Happy Motoring, Todd ? ? ? Thanks to everyone for their feedback, I have passed it onto the new owner of the R90S. "After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue ? ? On Tue, Jun 9, 2020 at 11:50 AM Mac Kirkpatrick via ??<drbeemer73= [email protected]> wrote: A friend just purchased a ?'76 DO R90S which is in fine shape. But the front brake drags too much for his liking. He has adjusted the brake, looked in the manual for advice, followed all the "check" procedures, ?but just can't get it good enough. The bleed back hole in his master cylinder?is not clogged, everything seems to be in order. His front wheel will spin for 3 turns when the brake is cold, after riding and getting the brake warm, it spins for 1-1/2 turns.? I spun my (cold) front wheel on my R90S and it spun for 2-3/4 turns, I did not ride it for a "warm" spin test. Does anyone have any suggestions? Is the brake perhaps just fine? "After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
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Bob Lutz and Hans-Albrecht Muth "Father of the R90S"
Yes Hans Muth designed the lovely R90S, but Bob Lutz saw to it that the R90S made it to market.
SO thanks Bob Lutz and Hans-Albrecth Muth!! We are very grateful!
See
Mac Kirkpatrick Glenmoore, PA
"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
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Re: Front Brake Dragging Question
With four brake pads, there will almost always be some slight drag, but being very careful to adjust the eccentric precisely on both sides will help quite a bit.? Of course he will want to clean and re-grease his front and rear wheel bearings, since this is a new bike to him and he doesn’t know when it was done last.? Also may as well lube the input shaft spline and the rear wheel drive spline while he is at it. ? Happy Motoring, Todd ? ? ? Thanks to everyone for their feedback, I have passed it onto the new owner of the R90S. "After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue ? ? On Tue, Jun 9, 2020 at 11:50 AM Mac Kirkpatrick via <drbeemer73=[email protected]> wrote: A friend just purchased a ?'76 DO R90S which is in fine shape. But the front brake drags too much for his liking. He has adjusted the brake, looked in the manual for advice, followed all the "check" procedures, ?but just can't get it good enough. The bleed back hole in his master cylinder?is not clogged, everything seems to be in order. His front wheel will spin for 3 turns when the brake is cold, after riding and getting the brake warm, it spins for 1-1/2 turns.? I spun my (cold) front wheel on my R90S and it spun for 2-3/4 turns, I did not ride it for a "warm" spin test. Does anyone have any suggestions? Is the brake perhaps just fine? "After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
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Re: Front Brake Dragging Question
Thanks to everyone for their feedback, I have passed it onto the new owner of the R90S.
Mac Kirkpatrick Glenmoore, PA
"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
On Tue, Jun 9, 2020 at 11:50 AM Mac Kirkpatrick via <drbeemer73= [email protected]> wrote: A friend just purchased a ?'76 DO R90S which is in fine shape. But the front brake drags too much for his liking. He has adjusted the brake, looked in the manual for advice, followed all the "check" procedures, ?but just can't get it good enough.
The bleed back hole in his master cylinder?is not clogged, everything seems to be in order.
His front wheel will spin for 3 turns when the brake is cold, after riding and getting the brake warm, it spins for 1-1/2 turns.?
I spun my (cold) front wheel on my R90S and it spun for 2-3/4 turns, I did not ride it for a "warm" spin test.
Does anyone have any suggestions? Is the brake perhaps just fine?
Mac Kirkpatrick Glenmoore, PA
"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
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Re: Front Brake Dragging Question
I have to agree With Mike Mine didn't spin 3 turns ether remember you have 2 sets of brake pads on each side and they are in constant contact with the rotors.
On Tuesday, June 9, 2020, 10:58:38 AM CDT, Mike Vosdingh <mvoziowa@...> wrote:
My hunch is it’s just fine.? Mine won’t spin 3 full revolutions even when cold and I’m not the least bit worried about it. ?I suspect he’s looking for the unobtainable.? They aren’t like bicycle wheels where you can have the satisfaction of watching them spin a long, long time.? ;)? ? Thanks, Mike ? ?
From: [email protected] [mailto:[email protected]] On Behalf Of Mac Kirkpatrick
Sent: Tuesday, June 9, 2020 10:50 AM
To: [email protected]
Subject: [R90SWORLDNET] Front Brake Dragging Question ? A friend just purchased a ?'76 DO R90S which is in fine shape. But the front brake drags too much for his liking. He has adjusted the brake, looked in the manual for advice, followed all the "check" procedures, ?but just can't get it good enough. The bleed back hole in his master cylinder?is not clogged, everything seems to be in order. His front wheel will spin for 3 turns when the brake is cold, after riding and getting the brake warm, it spins for 1-1/2 turns.? I spun my (cold) front wheel on my R90S and it spun for 2-3/4 turns, I did not ride it for a "warm" spin test. Does anyone have any suggestions? Is the brake perhaps just fine? "After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
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Locked
Re: Front Brake Dragging Question
My hunch is it’s just fine.? Mine won’t spin 3 full revolutions even when cold and I’m not the least bit worried about it. ?I suspect he’s looking for the unobtainable.? They aren’t like bicycle wheels where you can have the satisfaction of watching them spin a long, long time.? ;)? ? Thanks, Mike ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Mac Kirkpatrick
Sent: Tuesday, June 9, 2020 10:50 AM
To: [email protected]
Subject: [R90SWORLDNET] Front Brake Dragging Question ? A friend just purchased a ?'76 DO R90S which is in fine shape. But the front brake drags too much for his liking. He has adjusted the brake, looked in the manual for advice, followed all the "check" procedures, ?but just can't get it good enough. The bleed back hole in his master cylinder?is not clogged, everything seems to be in order. His front wheel will spin for 3 turns when the brake is cold, after riding and getting the brake warm, it spins for 1-1/2 turns.? I spun my (cold) front wheel on my R90S and it spun for 2-3/4 turns, I did not ride it for a "warm" spin test. Does anyone have any suggestions? Is the brake perhaps just fine? "After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
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Locked
Front Brake Dragging Question
A friend just purchased a ?'76 DO R90S which is in fine shape. But the front brake drags too much for his liking. He has adjusted the brake, looked in the manual for advice, followed all the "check" procedures, ?but just can't get it good enough.
The bleed back hole in his master cylinder?is not clogged, everything seems to be in order.
His front wheel will spin for 3 turns when the brake is cold, after riding and getting the brake warm, it spins for 1-1/2 turns.?
I spun my (cold) front wheel on my R90S and it spun for 2-3/4 turns, I did not ride it for a "warm" spin test.
Does anyone have any suggestions? Is the brake perhaps just fine?
Mac Kirkpatrick Glenmoore, PA
"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
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Re: No power BMW R90s will not start.
also we had a guy at Death Valley with same symptoms and the kill switch itself was bad, broken wire. keith in oakland, ca
On Saturday, June 6, 2020, 02:59:35 PM PDT, Chris via groups.io <treoleileagh@...> wrote:
This indicates you have battery power to the clock but no battery power coming out of the ignition switch. Check you haven't bumped the kill switch by accident (you wouldn't be the first). ?If you have a test lamp, make sure you have power into the ignition switch.? Then check a connection has not loosened at the back of the switch and the switch is tight in the "ear". If you have power coming out of the switch when it is on, chase the wires using your test lamp. You'll probably find a connection has been dislodged when re assembling the headlight. If no power coming out of the switch but you've got power in, you have a switch problem.
Sent?from?my?BlackBerry?10?smartphone. From: bowers.118 via groups.io Sent: Sunday, 7 June 2020 03:09 Subject: Re: [R90SWORLDNET] No power BMW R90s will not start. |
Headlight relay replaced and it started all electrics working. After 2 minutes cut out stopped no electrics other than clock ticking.....
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Locked
Re: No power BMW R90s will not start.
This indicates you have battery power to the clock but no battery power coming out of the ignition switch. Check you haven't bumped the kill switch by accident (you wouldn't be the first). ?If you have a test lamp, make sure you have power into the ignition switch.? Then check a connection has not loosened at the back of the switch and the switch is tight in the "ear". If you have power coming out of the switch when it is on, chase the wires using your test lamp. You'll probably find a connection has been dislodged when re assembling the headlight. If no power coming out of the switch but you've got power in, you have a switch problem.
Sent?from?my?BlackBerry?10?smartphone. From: bowers.118 via groups.io Sent: Sunday, 7 June 2020 03:09 Subject: Re: [R90SWORLDNET] No power BMW R90s will not start. | Headlight relay replaced and it started all electrics working. After 2 minutes cut out stopped no electrics other than clock ticking.....
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Martin Johnson
Frank ---Down Under
Russell Vandeweerd