BMW K bikes (Bricks)

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excorcist

excorcist
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active member


Basically I need the sprag clutch to be cleaned and i Just wanted to make sure it would get the oil (with detergent) circulating and cleaning it with the bike on the center stand and if it should be in neutral or in gear?

I have read that you should bump start it and then ride it for about 500 miles Im just wondering if running it in neutral will have the same effect, on the center stand, or should I put it in gear? or is the only way to ride it....

    

walfish

walfish
Life time member
Life time member
The term "ride it like you stole it", is the known cure. Sprag clutch cleaning (on center stand or do I have to ride?) 22936


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Sprag clutch cleaning (on center stand or do I have to ride?) Uk-log10 88 K 100  0033026 
   
                            92 K 1100 LT  6455097
    

charlie99

charlie99
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[quote="ungaas"]The term "ride it like you stole it", is the known cure. Sprag clutch cleaning (on center stand or do I have to ride?) 22936 [/quote

Sprag clutch cleaning (on center stand or do I have to ride?) 112350Sprag clutch cleaning (on center stand or do I have to ride?) 44271

but yeah try using some high detergent "diesel " oil for couple of thousand killometers ///it seems to get into all the right places ......but beware if your bearing seals or anything rubber connected to the engine have gone hard over the years (and they all have ) you might find some extra leaks after the diesel oil has done its job ..if you leave it to the next programmed oil change ( 5000 ks or so )

hope that helps


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OSprag clutch cleaning (on center stand or do I have to ride?) Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

K75cster

K75cster
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I'd think it in terms that make it like a washing machine, that is, if its really gummed up then a longer wash is needed, hense the ride it like ya stole it, which allows you some fun whilst heating everything up nicely. If you set it on a fast idle and run the tank out then maybe you are only half way there, certainly you are gonna have to be careful of the stationary heat buildup and ensure the fan works also that you use a exhaust extention and get the exhaust out and away from your shed, It may be the only practical way for you if your clutch wont engauge the stater to turn the engine, then sure bump it and sit with it, perhaps read the paper and check the fan constantly, BUT if its at all possible go for that ride and enjoy the ride, i'd do 2 to 3 tanks before expecting any improvement in the starter clutch department, there was another thread in here somewhere with regard to cleaning that sprag. so have a browse


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Keith - 1987 K75c with r100rt replica fairing and half of a 1984 K100rt 1992 K1100LT a blue one

The Clever are adept at extricating themselves from situations that the wise would have avoided from the outset - QUOTE from david Hillel in Out of the Earth.
    

excorcist

excorcist
active member
active member
thanks for the responses guys, yes i saw the how to on the sprag clutch manually just thought i would try this first,

i know a few of you suggested to ride it, I cannot ride it right now though, i can push it out in front of my garage and let it run, will this have the same effect? i can rev it up every now and then to simulate riding rpms,

    

excorcist

excorcist
active member
active member
Never mind guys I ran it for about an hour and a half today on the center stand and the problem has gone away (at least for now) im going to leave in te detergent for the first 500 miles or so when i start riding,

Thanks so much for the input as always!!

    

7Back to top Go down   Sprag clutch cleaning (on center stand or do I have to ride?) Empty This stuff is awsome on Tue Mar 12, 2013 11:27 pm

ibjman

ibjman
Life time member
Life time member
Years ago, we used this type of Rislone for stickey noisy hydraulic valve lifters. Onl when needed, not all the time.
http://www.rislone.ca/catalog/view/44-engine-treatment-34100
I believe it has great detergent qualities.
Failing (or alternativly) to that, a cup of high quality automatic transmission fluid (dexron) added to the oil for 1,000 miles would probably be equally effective. It also has awsome detergent powers.

    

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