James, Nothing wrong with leaving the bike on the sidestand for long periods, days, weeks or months, but you may experience some smoke exiting the left exhaust pipe briefly, when the bike is fired up, due the fact that some oil from the cylinder on the left side will remain in the head instead of flowing back into the oil sump. Then that oil could work its way into the combustion chamber , but it will get burned off quickly, just some puff of smoke as a result.? No big deal, save your back and shoulders....a couple drops of oil will not hurt anything or the bikes would not have sidestands to begin with if it was a concern.
On Mon, Jul 5, 2021 at 4:42 PM, James Marciano <marciano@...> wrote: Is it verboten to leave the R90S on the sidestand for long periods? I ask because I injured my right arm / shoulder six months ago and it¡¯s still hard to use my right arm.? Makes using the center stand nearly impossible, especially getting it off the center stand.?-- For information about our and things to do in and around .
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Is it verboten to leave the R90S on the sidestand for long periods? I ask because I injured my right arm / shoulder six months ago and it¡¯s still hard to use my right arm.? Makes using the center stand nearly impossible, especially getting it off the center stand.?-- For information about our and things to do in and around .
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Awesome thank you! On Mon, Jul 5, 2021 at 1:24 PM Robert Fleischer dba Fleischer's Service via <snowbum= [email protected]> wrote:
From my website (where tools are listed in such as the Clutch article, besides the Tools article):
1.? 2.? a Snippet:? Jeff Trapp jefftrapp@...??? has a number of interesting tools for Airheads.?? Jeff does repairs, inspections, instruction on repairs.? Jeff has his own tools, some, or many, are probably inspired by Ed Korn's tools or even copies or near copies.???He typically provides extensive detailed instructions.? Jeff may still have available a complete "loaner" kit ...everything, jigs, longer BMW helicoils, drill, tap, etc. ...for repairing bad cylinder stud hole threads.
Snowbum
Snowbum (AKA Robert Fleischer)
Learn from the mistakes of others, because you cannot
live long enough to make them all yourself!
A large number of good tests, inspections, measurements and both good
and bad experiences, are more valuable than most opinions, particularly
if found in a Facebook Group.
ABC 1843; MOA Life 17058; AMA Charter Life 73254; etc.
Carson City, Nevada
?(???)?
?
? ? ? ? Tried and failed to find the ¡°Jeff Trap adjustment tool¡±. Anybody got a link or source? ? Thanks for the explanation and linked video.?
On Jul 5, 2021, at 11:02 AM, Scott Blaylock via <scblaylock@...> wrote:
?Hi James,
There are two steps to adjusting the clutch. You first want to adjust the distance from the transmission case to the near end of the ball of the clutch cable, where it connects to the clutch actuator arm. That length should be 201mm and is adjusted using the cable adjuster at the clutch lever on the handlebar. Once that is set, you will want to adjust the clutch lever on the handlebar to have 2mm free play. This is adjusted using the adjuster bolt on the clutch actuator arm at the back of the transmission.
This video gives a good explanation of how it's done:? ??
I hope this helps,
Scott.
--
Robert (Snowbum) Fleischer, Carson City, NV, USA
ABC 1843; MOA Life 17058; AMA Charter Life 73254; USCA 6504¡..
?(???)?
-- For information about our and things to do in and around .
|
On 5 Jul 2021, at 14:57, Donald Walter <chipwalter@...> wrote:
?
Per owners manual p40 (US) target 2mm free play at the throwout lever (not handlebar lever). Adjustment is made at handlebar lever cable adjuster.?
I don¡¯t let mine warm up before riding. Choke to start then close choke right away and allow to run briefly (15-20 seconds) with hand on throttle to slightly increase rpm over idle (avoid stall) then ride away.?
On Jul 5, 2021, at 8:39 AM, James Marciano <marciano@...> wrote:
?
Two quick questions (it's a '75, if it matters):
1. How much free clutch?play to have at the beginning?
2. How long do you let the engine warm up on the centerstand (at present, mine warms up for 5-10 minutes, and it still stalling out around 850 RPM, unless I keep my wrist on the throttle). If I just get up and go around, it warms up quickly no problem.
Thanks!
best,
James?
New Hope, PA (DO '75)
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From my website (where tools are listed in such as the Clutch article, besides the Tools article):
1.? 2.? a Snippet:? Jeff Trapp jefftrapp@...??? has a number of interesting tools for Airheads.?? Jeff does repairs, inspections, instruction on repairs.? Jeff has his own tools, some, or many, are probably inspired by Ed Korn's tools or even copies or near copies.???He typically provides extensive detailed instructions.? Jeff may still have available a complete "loaner" kit ...everything, jigs, longer BMW helicoils, drill, tap, etc. ...for repairing bad cylinder stud hole threads.
Snowbum
Snowbum (AKA Robert Fleischer)
Learn from the mistakes of others, because you cannot
live long enough to make them all yourself!
A large number of good tests, inspections, measurements and both good
and bad experiences, are more valuable than most opinions, particularly
if found in a Facebook Group.
ABC 1843; MOA Life 17058; AMA Charter Life 73254; etc.
Carson City, Nevada
?(???)?
?
? ? ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Donald Walter
Sent: Monday, July 05, 2021 9:25 AM
To: [email protected]
Subject: Re: [R90SWORLDNET] idling; clutch? Tried and failed to find the ¡°Jeff Trap adjustment tool¡±. Anybody got a link or source? ? Thanks for the explanation and linked video.?
On Jul 5, 2021, at 11:02 AM, Scott Blaylock via groups.io <scblaylock@...> wrote:
?Hi James,
There are two steps to adjusting the clutch. You first want to adjust the distance from the transmission case to the near end of the ball of the clutch cable, where it connects to the clutch actuator arm. That length should be 201mm and is adjusted using the cable adjuster at the clutch lever on the handlebar. Once that is set, you will want to adjust the clutch lever on the handlebar to have 2mm free play. This is adjusted using the adjuster bolt on the clutch actuator arm at the back of the transmission.
This video gives a good explanation of how it's done:? ??
I hope this helps,
Scott.
-- Robert (Snowbum) Fleischer, Carson City, NV, USA
ABC 1843; MOA Life 17058; AMA Charter Life 73254; USCA 6504¡..
?(???)?
|
The method used with the 1981+ clutches, that 201 mm, etc., method, is not a necessity.? The original adjustment for the parallel-to-case method works fine, if one wants to do it that way.?? An easy way to remember one part of the adjustment procedure is that the adjustment at the transmission lever adjusts the free play at the handlebar lever, and the cable length adjustment (at the handlebars) adjusts the lever position at the transmission.
One thing not often having enough attention paid to it, is that the cable barrel in the handlebars lever must be free to rotate, and lubed¡.AND, the barrel at the other end of the cable, in the clutch lever at the transmission, must also be free to rotate.
The cable where it fits the handlebar lever must NOT be fouling the lever slot, or the cable will eventually break strands, and fail.
I have found rather a high percentage of the levers at the fork end, where the barrel fits, to be a wee bit tight on the barrel, so I use a fine rattail file on the fork end, just a very tiny bit of metal removed is all it usually takes.? Lube it with Moly grease.
Another thing is the bearing in the lever at the transmission¡it should be cleaned and lubricated, at rare intervals.
Snowbum ?
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Show quoted text
From: [email protected] <[email protected]> On Behalf Of Scott Blaylock via groups.io
Sent: Monday, July 05, 2021 9:02 AM
To: [email protected]
Subject: Re: [R90SWORLDNET] idling; clutch ? Hi James,
There are two steps to adjusting the clutch. You first want to adjust the distance from the transmission case to the near end of the ball of the clutch cable, where it connects to the clutch actuator arm. That length should be 201mm and is adjusted using the cable adjuster at the clutch lever on the handlebar. Once that is set, you will want to adjust the clutch lever on the handlebar to have 2mm free play. This is adjusted using the adjuster bolt on the clutch actuator arm at the back of the transmission.
This video gives a good explanation of how it's done:? ??
I hope this helps,
Scott. -- Robert (Snowbum) Fleischer, Carson City, NV, USA
ABC 1843; MOA Life 17058; AMA Charter Life 73254; USCA 6504¡..
?(???)?
|
Thanks everyone, I really appreciate all the valuable advice!?
Hope to see some of you at Todd's place for the??September 30th to?Oct 3rd!
Thanks for the explanation and linked video.? On Jul 5, 2021, at 11:02 AM, Scott Blaylock via <scblaylock=[email protected]> wrote:
?Hi James,
There are two steps to adjusting the clutch. You first want to adjust the distance from the transmission case to the near end of the ball of the clutch cable, where it connects to the clutch actuator arm. That length should be 201mm and is adjusted using the cable adjuster at the clutch lever on the handlebar. Once that is set, you will want to adjust the clutch lever on the handlebar to have 2mm free play. This is adjusted using the adjuster bolt on the clutch actuator arm at the back of the transmission.
This video gives a good explanation of how it's done:? ??
I hope this helps,
Scott.
-- For information about our and things to do in and around .
|
I was just going to ask for the same thing! :-)
Jeff Trap adjustment tool
Anyone sell it / make it? Seems handy.
best, James
Tried and failed to find the ¡°Jeff Trap adjustment tool¡±. Anybody got a link or source? ?
Thanks for the explanation and linked video.? On Jul 5, 2021, at 11:02 AM, Scott Blaylock via <scblaylock=[email protected]> wrote:
?Hi James,
There are two steps to adjusting the clutch. You first want to adjust the distance from the transmission case to the near end of the ball of the clutch cable, where it connects to the clutch actuator arm. That length should be 201mm and is adjusted using the cable adjuster at the clutch lever on the handlebar. Once that is set, you will want to adjust the clutch lever on the handlebar to have 2mm free play. This is adjusted using the adjuster bolt on the clutch actuator arm at the back of the transmission.
This video gives a good explanation of how it's done:? ??
I hope this helps,
Scott.
-- For information about our and things to do in and around .
|
Tried and failed to find the ¡°Jeff Trap adjustment tool¡±. Anybody got a link or source?
toggle quoted message
Show quoted text
On Jul 5, 2021, at 11:18 AM, Donald Walter <chipwalter@...> wrote:
?
Thanks for the explanation and linked video.? On Jul 5, 2021, at 11:02 AM, Scott Blaylock via groups.io <scblaylock@...> wrote:
?Hi James,
There are two steps to adjusting the clutch. You first want to adjust the distance from the transmission case to the near end of the ball of the clutch cable, where it connects to the clutch actuator arm. That length should be 201mm and is adjusted using the cable adjuster at the clutch lever on the handlebar. Once that is set, you will want to adjust the clutch lever on the handlebar to have 2mm free play. This is adjusted using the adjuster bolt on the clutch actuator arm at the back of the transmission.
This video gives a good explanation of how it's done:? ??
I hope this helps,
Scott.
|
Thanks for the explanation and linked video.?
toggle quoted message
Show quoted text
On Jul 5, 2021, at 11:02 AM, Scott Blaylock via groups.io <scblaylock@...> wrote:
?Hi James,
There are two steps to adjusting the clutch. You first want to adjust the distance from the transmission case to the near end of the ball of the clutch cable, where it connects to the clutch actuator arm. That length should be 201mm and is adjusted using the cable adjuster at the clutch lever on the handlebar. Once that is set, you will want to adjust the clutch lever on the handlebar to have 2mm free play. This is adjusted using the adjuster bolt on the clutch actuator arm at the back of the transmission.
This video gives a good explanation of how it's done:? ??
I hope this helps,
Scott.
|
Hi James,
There are two steps to adjusting the clutch. You first want to adjust the distance from the transmission case to the near end of the ball of the clutch cable, where it connects to the clutch actuator arm. That length should be 201mm and is adjusted using the cable adjuster at the clutch lever on the handlebar. Once that is set, you will want to adjust the clutch lever on the handlebar to have 2mm free play. This is adjusted using the adjuster bolt on the clutch actuator arm at the back of the transmission.
This video gives a good explanation of how it's done:? ??
I hope this helps,
Scott.
|
James, Start with choke on,? no need to let the engine idle. By the time you have your jacket, helmet and gloves on, you should be ready to roll down the road, it's much better to warm up the engine while you are moving. The engine will warm up much faster when it is working. Air cooled engines, especially performance engines, don't like it when air is not flowing over the heads and cylinders. You can overheat a boxer engine easily this time of year when the outside temperatures reach into the higher levels as we experienced lately. Start the engine, roll down the road, take off choke as soon as engine warms. This should not take long....DONT LET ENGINE IDLE FOR MORE THAN A COUPLE OF MINUTES,? THEY NEED AIR FLOW OVER THE CYLINDERS !
Clutch free play should be around? quarter inch at the lever, maybe three eights at most.
On Mon, Jul 5, 2021 at 9:39 AM, James Marciano <marciano@...> wrote: Two quick questions (it's a '75, if it matters):
1. How much free clutch?play to have at the beginning?
2. How long do you let the engine warm up on the centerstand (at present, mine warms up for 5-10 minutes, and it still stalling out around 850 RPM, unless I keep my wrist on the throttle). If I just get up and go around, it warms up quickly no problem.
Thanks!
best,
James? New Hope, PA (DO '75)
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Per owners manual p40 (US) target 2mm free play at the throwout lever (not handlebar lever). Adjustment is made at handlebar lever cable adjuster.? I don¡¯t let mine warm up before riding. Choke to start then close choke right away and allow to run briefly (15-20 seconds) with hand on throttle to slightly increase rpm over idle (avoid stall) then ride away.?
toggle quoted message
Show quoted text
On Jul 5, 2021, at 8:39 AM, James Marciano <marciano@...> wrote:
? Two quick questions (it's a '75, if it matters):
1. How much free clutch?play to have at the beginning?
2. How long do you let the engine warm up on the centerstand (at present, mine warms up for 5-10 minutes, and it still stalling out around 850 RPM, unless I keep my wrist on the throttle). If I just get up and go around, it warms up quickly no problem.
Thanks!
best,
James? New Hope, PA (DO '75)
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Hi James,
There is absolutely NO need to let the bike warm up while stationary. Start the bike and ride off gently. That¡¯s the best way to warm up the bike. Sitting and idling can quickly lead to overheating.
Cheers,
Bill in NH
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On Jul 5, 2021, at 9:39 AM, James Marciano <marciano@...> wrote:
Two quick questions (it's a '75, if it matters):
1. How much free clutch play to have at the beginning?
2. How long do you let the engine warm up on the centerstand (at present, mine warms up for 5-10 minutes, and it still stalling out around 850 RPM, unless I keep my wrist on the throttle). If I just get up and go around, it warms up quickly no problem.
Thanks!
best,
James
New Hope, PA (DO '75)
|
Two quick questions (it's a '75, if it matters):
1. How much free clutch?play to have at the beginning?
2. How long do you let the engine warm up on the centerstand (at present, mine warms up for 5-10 minutes, and it still stalling out around 850 RPM, unless I keep my wrist on the throttle). If I just get up and go around, it warms up quickly no problem.
Thanks!
best,
James? New Hope, PA (DO '75)
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Thanks Harold, I picked up the bike in New Jersey this week and dropped it off at Guenther's shop in southern Indiana this morning for a complete service and check for any problems. Beautiful DO paint job and the rest of the bike looks great. Only one problem with the electrics which appears to be in the starter switch.??
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Go to Endurolast site He sells siebenrock pistons an cylinders? Part #?PistonKit0072 EME Price $1,399.99 BUY NOW $1,175.99
endurolast site
On Tuesday, June 29, 2021, 11:52 AM, Donald Walter <chipwalter@...> wrote: I stand corrected. Both Max BMW and Bob's BMW tell me they are No Longer Available even though their online parts systems show them available.
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I stand corrected. Both Max BMW and Bob's BMW tell me they are No Longer Available even though their online parts systems show them available.
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I¡¯ve found that new cylinders are apparently still available so no need for used.
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On Jun 25, 2021, at 2:17 PM, Donald Walter <chipwalter@...> wrote:
?Putting out a feeler for a pair of serviceable R90S cylinders. Prefer those still dimensionally suitable for my OEM pistons but would consider +1 or +2 overbores in very good condition. Please PM me if you¡¯ve got something to offer. Thanks. Don
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Locked
Looking for a nice R90S (am in UK)
Hi All
I am looking to buy a cherished R90S if anyone has any leads for one that might be for sale. Whilst in the UK, I would be interested in any European bike. Thanks very much for any help or pointers
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James Marciano
Scott Blaylock