Post by: Adam M on July 11, 2018, 08:14:43 PM
My Triumph T150V rides great, unfortunately my body feels quite beaten up after a ride longer than 100 km.
I know I could improved it further by installing better front end with better brakes, better rear shocks, but don't want to mess with original bike.
So probably has to sell it in a year or two and go a BMW route.
Only problem I see with BMW, I'm short ( 173 cm tall ) so my first question is how high K75 is ?
I was OK with R80, but it's seat was lowered.
Another question, could somebody compare both bikes ?
Thank you.
Ah, I'm from Mississauga, Ontario.
Post by: Laitch on July 11, 2018, 08:39:51 PM
I'm short ( 173 cm tall ) so my first question is how high K75 is ?K75 models came in a standard seat version or a low seat version. The low seat is 760mm high. It has a profile and seat components distinct from the standard seat. The red bike is a low seat version. The arrows show its unique tank pad and how the seat has a sloping profile. The low seat is not hinged; it can be slid off to access the battery.
(http://www.motobrick.com/gallery/1/1601-110718203536.png)
The black bike has a standard seat. The seat is 810mm high. The arrows show its horizontal profile and its battery cover which is not present on the low seat model. The standard seat is hinged for access to a small tool box and the battery beneath the tool box.
(http://www.motobrick.com/gallery/1/1601-110718203827.png)
Post by: Martin on July 11, 2018, 09:05:21 PM
Regards Martin.
Post by: Chaos on July 11, 2018, 11:42:56 PM
Post by: Martin on July 12, 2018, 01:53:43 AM
Regards Martin.
Post by: blackie1 on July 12, 2018, 03:37:34 AM
i have owned both and if forced to choose then my personal preference would be the k75 all day long.
smoother, accelerates quicker and more nimble than the R80
the R80's sheer simplicity and ease of accessibility however beats the K75 which is a bit more complex with the fuel injection.
flip a coin
everyone's a winner baby
:2thumbup:
Post by: Adam M on July 12, 2018, 08:56:19 AM
After 15 years with old british bikes, carbs are not fiddly to me at all :), however K's fuel injection would be a think to master.
From what I read on the forum engine is pretty much unburstable, gearbox, shaft and final drive are R80 parts anyway.
I thought about K because I like triples, and liquid cooling makes engine temperature more stable.
With Triumph during a hot day I start with cold engine and very slow idle to have a racing engine on idle after some traffic jams in town.
But inevitably the cooling and FI makes it much more complicated comparing to R80, which is as reliable, simple enough for me to do not only maintenance but all the possible repairs by myself and is not affected by heat at all. A month ago I was riding through Berlin in 30C degrees days without any problems.
Post by: Chaos on July 12, 2018, 09:07:57 AM
Post by: Adam M on July 12, 2018, 10:10:52 AM
On the different note is your Dnepr side valve ?
Post by: Chaos on July 12, 2018, 11:17:19 AM
Perhaps you should clean injectors ? :).Haha, Techron seems to do the trick. And no, it's a Ural with overhead valves, similar to a /2 with the pushrod tubes above the cylinders.
On the different note is your Dnepr side valve ?
Post by: Adam M on July 12, 2018, 11:33:20 AM
It changed a bike a bit with much easier starting and even idle. However his was an older Ukrainian home market model.
I also believe you use an old picture of my polish virtual friend working on her K750 :).
Post by: Gibson on July 12, 2018, 11:34:10 AM
Post by: Laitch on July 12, 2018, 11:53:16 AM
. . . it's a Ural with overhead valves, similar to a /2 with the pushrod tubes above the cylinders.Doesn't it also have an oil filter instead of an oil slinger—as a nod to evolution? :giggles
Post by: Chaos on July 12, 2018, 12:24:26 PM
Post by: Adam M on July 12, 2018, 04:43:02 PM
I made a mess in another thread, trying to insert a picture from postimage.org and don't see any edit button around a post body ?
Post by: Laitch on July 12, 2018, 05:18:13 PM
How can I edit posts ?There are a couple of images of a bike in one of your threads. We don't get modify buttons right off the bat so you should carefully Preview your posts until you get one. We'll all just live with your messes until you have means to clean them up. :giggles
I made a mess in another thread, trying to insert a picture from postimage.org and don't see any edit button around a post body ?
Post by: Laitch on July 12, 2018, 06:01:30 PM
. . . however K's fuel injection would be a think to master.The thing about the L-Jetronic system on a K75 is that there is nothing to master so you don't need to think about it; however, if you buy a clapped-out, neglected, used K-bike what you'll need to master is electronic diagnosis using a multi-meter so you can go through all the Jetronic functions to determine if the ohms and voltage are at spec, only to find out that what you should have done is replaced the fuel filter and fuel hoses. :giggles
Post by: Gibson on July 12, 2018, 06:09:08 PM
Post by: stokester on July 12, 2018, 06:41:18 PM
Fuel injection on these bikes is very basic by today's standards, but it works very well. These bikes are as easy to work on as the R but a bit more technical. I have been riding R bikes for 40 years but enjoy working on the KSame here, I've been able to do all the diagnosis, work, and certainly all the maintenance so far on both types of BMWs following advice found here and other online forums. The extra complication of fuel injection is a non-issue to me with only the fuel pump, filter, lines and injectors added to the mix. I'm sure it has failed on some but the control module appears to be pretty robust. After all I'm sure all of us depend on these systems in our daily drivers.
The most complex thing I diagnosed was the ABS and using on-line references and analog meter I was able to get the brain fixed by Tosi in Japan.
Post by: Gibson on July 13, 2018, 07:16:21 AM
Post by: Adam M on July 13, 2018, 07:39:34 AM
How easy / hard is to place it on a center stand ?
Post by: Laitch on July 13, 2018, 09:30:02 AM
What's the weight of K ?The weight of a naked K75 is approximately 500lbs. Go to the following site for all points of comparison among most BMW motorcycles. http://www.bmbikes.co.uk/bmwmodels.htm (http://www.bmbikes.co.uk/bmwmodels.htm)
How easy / hard is to place it on a center stand ?
It will be difficult for you to place it on the side stand if you have poor abdominal core strength and weak leg muscles.
Post by: Gibson on July 13, 2018, 09:46:38 AM
Post by: Adam M on July 13, 2018, 10:38:24 PM
So leg muscle and core are still there. :)
Also can still put my Trident on the center stand, what could give a hernia to a young man. It's weight is 500 lbs too, but stand is bloody difficult.
Laitch, thanks for another great source, Gibson - K bikes have to be center stand too. Left on the prop stand they tend to smoke.
Post by: Chaos on July 14, 2018, 08:46:35 AM
Post by: The Mighty Gryphon on July 14, 2018, 10:04:28 AM
You are doing a public service...
Post by: stokester on July 14, 2018, 12:34:51 PM
after decades of using the centerstand I've relegated it now pretty much just for maintenance use. Stories of it collapsing and general laziness are the culprits. Two tricks to using the sidestand, tilt the bike to the right for a moment after shutting it off, and before starting it back it out of it's spot so you can drop it into gear and have a clean getaway, avoiding the glares and criticisms of onlookers and they succumb to a cloud of K smoke. Actually, mine only smokes maybe 1 out of 10 times, no rhyme or reason. :dunnoMe too. I feel the bike is more stable on the sidestand after finding my K75 sunk into the asphalt up to the foot pad when using the centerstand. I always carry a pad for the sidestand to prevent that sinking feeling on questionable surfaces.
It smokes on startup about the same frequency as my airheads which is not very often but when it does there always seems to be an audience :mbird
Post by: Adam M on July 14, 2018, 03:24:18 PM
I didn't ride because of constant rain. No problem at all with center stand it, I can do it in my sandals easily.
I checked the bike quite extensively and it looks very well taken care for. Only problem I see is original position with very short handlebar which is placed too far forward to my liking. Current owner told me I can use some kit to rise it a bit and place it back, without changing a length of a brake hose.
Did anybody used it and with what result ?
Post by: Chaos on July 14, 2018, 04:12:05 PM
Post by: stokester on July 14, 2018, 04:30:21 PM
<SNIP>I find the K75S ergonomics near perfect for my nearly 6' frame and long arms but know that it is too far forward for many.
Only problem I see is original position with very short handlebar which is placed too far forward to my liking. Current owner told me I can use some kit to rise it a bit and place it back, without changing a length of a brake hose.
Did anybody used it and with what result ?
There will probably be others who chime in that the handlebars from a K75C meet the need.
Post by: blackie1 on July 14, 2018, 05:14:31 PM
anything new to you will feel different.
ride it for a month and it will fit u like an old glove. humans have been adapting for millenia, although some would say the aussies have timed out on their adaptation duties.
of course i would never say that
:clap:
Post by: Martin on July 14, 2018, 05:28:08 PM
Regards Martin.
Post by: blackie1 on July 14, 2018, 05:55:08 PM
Post by: rbm on July 14, 2018, 06:18:11 PM
Post by: Martin on July 14, 2018, 06:24:50 PM
Regards a totally cooled out Martin.
Post by: duckhawk on July 14, 2018, 11:09:52 PM
k bike r bike iiii.jpg (96.75 kB . 502x324 - viewed 483 times)The R80RT was truly an amazing bike. The ergonomics were perfect for me. It was so perfectly balanced I could ride no handed and, lean only, on long radius turns for literally miles at a time.
I had to sell it to get the 02 1150 and I sold it for more than I paid for it.
The boxer engine was not smooth at low RPMS and shook the bike when lugged, but sang at 50-80mph. The tranny was unforgiving and took a while to master. Compared to the sewing machine precision of the K75's engine and gearbox, the R80's engine was clunky. The 1150's is the same way. 2 pistons mashing out brute force power when stomped on. Nothing like the steady roll on of the K75 , at any rate.
Once, after not checking the tire pressure, I bounced the R80 hard off a curb on a left turn, AND IT BOUNCED ME BACK ON THE ROAD. After that day I swore I would own nothing but a boxer.
In contrast, another time I wound it hard up the gears while touring in a rain storm and it popped out of gear between 4th and 5th at 80MPH and scared the hell out of me.
Bottom line, the low center of gravity was a complete joy, saved me once, and that's why I own the 1150.
The K75 is different. I bought it, sight unseen, and flew out to the Carolinas and rode it back to Wisconsin in 2 days of super-slab riding. It took me a while, but after the used scout fairing, I found myself riding it 80% of the time. Mostly because of the smoothness, less weight, less shifting with the expansive powerband. It is my CITYBIKE.
Now, I am training my son to ride. He is an amateur dirtbiker, so he has some riding skill, but I trust the K75's smoothness and steadiness to help him along.
Wrenching. To me it takes the same skill level to do both bikes. I have always adjusted my own valves, basic maintenance, etc. Vintage dirtbike maintenance is simplistic compared to these roadbikes. But with all the info the sites like this, you can learn to do most of the non-major stuff.
Why buy one, when you can buy two for twice the price!!
Post by: Adam M on July 14, 2018, 11:16:23 PM
I plan to go there on my bike, to try it as long as my body remembers the last BMW :).
The current owner is very particular, he has all recites and hand written blog of anything done to the bike over the years.
Post by: Skunky on July 15, 2018, 07:43:16 PM
Post by: bocutter Ed on July 16, 2018, 10:34:38 AM
it's in NewmarketThat's only an hour North of us not taking the slab. I'll go here www.milbreeviking.com for a doughnut ...
Post by: Martin on July 16, 2018, 03:20:38 PM
Post by: bocutter Ed on July 16, 2018, 03:39:15 PM
Arhhhhh, Donuts. :lets-eat:This bakery also makes ground meat filled donuts (no sugar in the dough). :lets-eat:
Post by: Adam M on July 16, 2018, 03:57:50 PM
Post by: bocutter Ed on July 16, 2018, 04:10:26 PM
Post by: Martin on July 16, 2018, 04:11:08 PM
Regards Martin.
Post by: bocutter Ed on July 16, 2018, 04:55:01 PM
I remember having an éclair at Harrods when I was a child. Asked Granny if I could have another, ever so politely ... yesss!
Post by: bocutter Ed on July 16, 2018, 04:58:43 PM
Woodn't those boots be an impediment to being shifty.
Post by: Martin on July 16, 2018, 05:06:11 PM
Regards Martin
Beefies Eclair.jpg (16.43 kB . 431x192 - viewed 474 times)Post by: Adam M on July 17, 2018, 08:26:31 PM
The bike I'm going to see tomorrow ( 92 K 75S ) doesn't have an ABS. Pumps are removed by the previous owner.
What can I expect from ABS lamp ?
What is minimal thickness of rotors ?
This bike has 3 of them and front ones look pretty thin to me.
Post by: rbm on July 17, 2018, 08:55:06 PM
The minimum brake disk thickness is 3.6mm. I believe a new disk is 4.5mm (taking a guess here).
Update: Looked it up. A new disk is 4.0mm
Post by: Adam M on July 17, 2018, 09:11:11 PM
I'm used to around 5 mm in old Japanese bikes.
Post by: blackie1 on July 18, 2018, 02:57:49 AM
Post by: Chaos on July 18, 2018, 09:39:30 AM
Post by: Gibson on July 18, 2018, 09:52:24 AM
Post by: johnny on July 18, 2018, 10:07:51 AM
i took my motoheap to a socal dealer for their $30 oil change and moto warsh...
after i paid they told me they could not release my brick to me eithout new disks because my disks were at 2.5mm and not roadworthy...
i caught a ride to fetch my spare key... returned and stole my own moto...
those disks are 2mm now and brake like a moe...
f the booshee and ride...
j o
Post by: Adam M on July 18, 2018, 10:10:54 AM
Have impression that it was deleted too.
Bike has 80k km on it, but could be 180 k as well.
However current owner looks trustworthy to me and bike looks very good and in constant use.
Post by: Adam M on July 18, 2018, 10:13:11 AM
Post by: Gibson on July 18, 2018, 10:24:07 AM
Post by: Chaos on July 18, 2018, 12:35:09 PM
Yep 4mm. How many miles on it? Rotors should be good for 70-80K miles or more.
Those were my 2nd set, both went about 95k, replaced them with EBC rotors this time around.
Post by: Chaos on July 18, 2018, 12:49:51 PM
greetings...
i took my motoheap to a socal dealer for their $30 oil change and moto warsh...
j o
$30 ool change from a dealer? Hell, that's a ploy to get you in there so they can riffle through you saddlebags and find incriminating evidence to extort $3875 tune up from you :deal:
Post by: rbm on July 18, 2018, 03:42:32 PM
Another question, were electronic circuit board is located ?Which circuit boards are you referring? If its the ABS, the circuits are in the tail of the bike.
Post by: Adam M on July 18, 2018, 03:47:50 PM
Post by: Laitch on July 18, 2018, 03:59:07 PM
Bike has 80k km on it, but could be 180 k as well.It could be, but if it has been operating accurately, its odometer should read something like 080000. The main odometer on classic K-bike Motometers records miles/kilometers six places left of decimal.
Post by: Gibson on July 18, 2018, 04:10:35 PM
Post by: rbm on July 18, 2018, 04:39:02 PM
The board controlling all the lights, blinkers and tells you a bulb is broken :).Most lights (headlight, high beam, parking) are wired directly through switches. The brake and rear running light is wired through the Bulb Monitoring Unit (BMU) located in the relay box under the tank. Signals are managed by the Flasher module, also located under the tank.
Other circuits such as neutral detect, speedometer, tachometer, clock and gear indicator are located in the instrument cluster.
Post by: Adam M on July 18, 2018, 09:39:48 PM
- instruments in the faring were dancing furiously all the time,
- guttural vibration was slightly felt with speed 60 - 80 km/h but became really intrusive to the point of a strong feel even in the handlebar around 100 - 120 km/h
Bike was dropped in the past, tank was painted and faring has a slight crack in the left side touching tank.
My question is - could this kind of vibration be caused by lets say any imbalance in throttles, dirty injectors or faulty ignition set up, or something got really screwed during motorcycle drop. I suspected one of the crank bearings going out, but oil pressure lamp showed on turned of engine and never came back during a ride.
Post by: rbm on July 18, 2018, 10:08:23 PM
The dancing instruments is peculiar as well.
Post by: Adam M on July 18, 2018, 10:17:50 PM
Post by: Adam M on July 18, 2018, 10:54:49 PM
So it could be a bearing in the tranny.
Post by: Laitch on July 18, 2018, 11:03:04 PM
I suspected one of the crank bearings going out, but oil pressure lamp showed on turned of engine and never came back during a ride.Golly! The sky is falling! The bearings are ok. I can see their aura from here—a soothing mint green.No, it's not true - I just realized I only pulled the clutch changing gears and didn't do it going on 404 at 100 km/h.
So it could be a bearing in the tranny.
Because it's a neglected K75S, it needs its fairing fittings tightened (https://forums.bmwmoa.org/showthread.php?3152-K75S-Headlight-amp-Front-Fairing&s=30016a3f56af70511e196df13a1539fc&p=28005&viewfull=1#post28005), a dose of stuff the monkey (http://www.motobrick.com/index.php?topic=9185.0) and probably a tune up. Bad bearings would be a bonus.
Post by: Laitch on July 18, 2018, 11:24:24 PM
Post by: blackie1 on July 19, 2018, 12:50:32 AM
you will be used to it before you know it.
http://www.motobrick.com/index.php/topic,9185.msg73158.html#msg73158
plenty of threads discuss this
Post by: Martin on July 19, 2018, 01:35:25 AM
Regards Martin.
Post by: johnny on July 19, 2018, 04:24:19 AM
trans needs a valve job... do you have shems...
j o
Post by: Adam M on July 19, 2018, 05:38:39 PM
Vibration subsided, he was able to take a bike to 160 km/h, but was still there.
I suggested my suspicion about gearbox / final drive bearing being on the way out and he confirmed the possibility
with his buddy ( head of BMW service in one of Toronto dealerships ).
He decided to take final drive, shaft and gearbox off to find out if this could be a culprit.
Will give me a message during this coming weekend.
Post by: Laitch on July 19, 2018, 06:15:40 PM
Seller called me today telling me his throttle bodys were way off and he corrected them.This seller seems unusually accommodating. I hope this works out for both of you.
Vibration subsided, he was able to take a bike to 160 km/h, but was still there
He decided to take final drive, shaft and gearbox off to find out if this could be a culprit.
Will give me a message during this coming weekend.
Post by: Adam M on July 19, 2018, 06:25:58 PM
Post by: rbm on July 19, 2018, 06:49:27 PM
Post by: Adam M on July 19, 2018, 07:03:44 PM
Today he took off a final drive and shaft, tomorrow a gearbox and clutch.
Post by: Adam M on July 19, 2018, 09:38:36 PM
(https://s26.postimg.cc/wpoifp8sp/bmw_splines_2.jpg)
These are the pictures I got from him.
What do you guys think ?
Lots of grease :).
Post by: rbm on July 19, 2018, 09:49:01 PM
Post by: The Mighty Gryphon on July 19, 2018, 09:52:52 PM
If it was me, I'd make a special trip to see them in person. Good splines have nice wide flat spots at the top. As they wear that flat area gets narrower until it's almost a knife edge, and then they strip out.
Post by: Laitch on July 19, 2018, 10:49:46 PM
Post by: Adam M on July 19, 2018, 11:11:21 PM
What is the cost of a good shaft ?
And yes, I will ask him to clean the grease and make better pictures.
To go and see - I already made 2 x 140 km round trips, perhaps during the weekend.
Post by: blackie1 on July 20, 2018, 02:51:33 AM
motobins can supply a spline replacement for the rear of your driveshaft for 66 UK pounds plus freight,so long as your final drive splines are still in good nick. I am certain there are posts on here that you can do some research.
i bought this spline replacement and managed to source a second hand final drive unit from the USA that was still in tip top condition.
new driveshaft splines attached to worn final drive will chew out your new splines, so best to try and get good teeth on both mating surfaces.
both parts are presently shelved in my garage, ready for when I decide to have a local engineering outfit weld the new splines on.
having the replacements on my shelf gives me a sense of smug self satisfaction.
i am smugger than smuggler that has 2 x smug rats in either pocket :neener:
Post by: Adam M on July 22, 2018, 11:03:07 AM
(https://s26.postimg.cc/o4iblw7qh/bmw_pics_1.jpg)
(https://s26.postimg.cc/bd45fe5o9/bmw_pics_2.jpg)
(https://s26.postimg.cc/5c6gih3o9/bmw_pics_3.jpg)
(https://s26.postimg.cc/3kdhnks15/bmw_pics_4.jpg)
(https://s26.postimg.cc/o4ibm2fi1/bmw_pics_5.jpg)
Post by: rbm on July 22, 2018, 12:08:13 PM
Post by: bocutter Ed on July 22, 2018, 12:20:59 PM
They are dry and need lubrication badly.Prior photos had them covered in grease. These would be "cleaned for inspection photos".
Post by: Adam M on July 22, 2018, 12:38:21 PM
Post by: The Mighty Gryphon on July 22, 2018, 12:44:42 PM
Prior photos had them covered in grease. These would be "cleaned for inspection photos".
+1 Cleaning them showed how good the splines are.
Waiting for final drive and driveshaft output spline photos. IMO those are the important ones. Judging from the photos posted, they should look pretty good.
Post by: Adam M on July 27, 2018, 04:18:14 PM
(https://s26.postimg.cc/azsle276h/P8270001.jpg)
(https://s26.postimg.cc/tfd2bgt0p/P8270002.jpg)
We picked up a bike from the seller this morning and made 70 km on rural and less rural roads, crossing Toronto in dense traffic around noon, me on the bike and my wife in our car. Bake behaves exceptionally well, is very comfortable ( other than too sporty riding position for me, but it's not as bad as I expected ), brakes are powerful an well modulated, feels very solid in turns and slow speed maneuvers, gears and clutch work quietly and smoothly.
After some time spend at home we decided to try it two up in afternoon city traffic and however I got sweaty ( it's hot day anyway ) it was done with ease.
We are very happy to have this bike in our possession and looking forward to have lots of fun on it.
(https://s26.postimg.cc/4tr57r88p/image3.jpg)
Post by: natalena on September 01, 2018, 07:15:20 PM
Post by: Adam M on September 02, 2018, 10:28:48 AM