BMW K bikes (Bricks)


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SniperX

SniperX
Silver member
Silver member
I am finally changing my spark plugs next week. The stock Bosch is incredibly hard to find locally so I'd love to get an NGK or something I can get locally. If the stock Bosch is the best to go with what number do you use?> I forgot what is in mine when I had it apart last year for the timing chain...I also remember getting a set of NGK (which I still have) for it and found out they no longer come with the tops and the tops are scarce as hens teeth so those are out. BTW the NGK I got is the D7EA but has no ferrule or whatever you call that screw on tip for the threaded end of the plug. Anyone know where to source a set of those tips or ferrules or what the hell they are called? I'd buy a case of 10 if needed. I use to throw them away!


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1985 BMW K100RT, 2006 Ducati ST3, 1996 Honda CBR1000f, 2001 Honda XR400r
    

Laitch

Laitch
Life time member
Life time member
SniperX wrote: Anyone know where to source a set of those tips or ferrules or what the hell they are called?
Terminal nuts. Trade them for cigarettes, walnuts or whichever medium of exchange local mechanics are using.


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1995 K75 90,000 miles
    

TacKler

TacKler
Life time member
Life time member
Sniper, 

If you have no luck locally for the ferrules, send me PM and I will post some out for you.  

I raided a good friends car workshop a couple of years ago and he said, "The orphan spark plugs box is over there.  Take all you need."  So I did..... I took them all.  We are still friends.  

If you have a look at the euromotoelectrics website in the US they have Bosch plugs there.  The Bosch plugs are getting harder to find in Oz whereas the NGK are readily available.  Bosch X5DC or NGK D7EA for me.  

Dave.



Last edited by TacKler on Wed Apr 19, 2017 12:35 am; edited 1 time in total (Reason for editing : EME reference)


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Red 1991 K75S
    

Snod Blatter

Snod Blatter
Life time member
Life time member
Just as a little FYI if you look up the K100 on NGK's website they recommend the D8EA plug instead. If your engine still has the original Bosch plugs please do compare the length of them to whatever you're replacing them with - I have fitted D7EAs but the old Boschs looked a little longer to me.

Also, in other bikes I have tried copper NGK, copper Denso, Iridium Denso and Champion (for a laugh). Nothing lasts half as long or is as well behaved as the normal boring copper NGK plug.

Oh and I've been calling them nipples.. Laughing


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1989 K100RS SE ABS 8v  VIN: 0149214
Others: 1.5 x CBX250RS-E, '94 CB250, '95 TRX850, '16 Z250SL, '01 R1100GS
http://justbikethings.blogspot.co.uk/
    

Rick G

Rick G
admin
admin
Bosch X5DC in the cardboard packet, they are made in europe, not the blister pack as they are made in Brazil and wont last well or NGK D7EA


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"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

92KK 84WW Olaf

avatar
Life time member
Life time member
Quite a few places here also go for the D8EA in the Ks, including some BMW experts. Not sure of the physical differences but from 2 stroke days I have a feeling that the difference between a D7EA and a D8EA will be the running temperature, the 7 being hotter than the 8. I have used both and also the Bosch and also Champion and can't say there is a very obvious difference. Apart from the fact that with the NGKs a few times I have had plugs fail after a few hundred miles.

Thanks to BAE there is a box of D7EAs in my shed......


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

Dai

Dai
Life time member
Life time member
D7EAs. Dunno what Olaf is up to but I've not had an NGK fail yet in any bike and I've run some for six or seven years at an average of 15K miles a year before remembering to change them. I have noticed that the K is sensitive to the gap; BMW state a gap of 23thou but as the nearest feeler gauge I have is 25thou... Once it wanders passed about 4thou too wide (IME) the engine starts to protest on warmup.


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1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

BobT

BobT
Life time member
Life time member
BMWs were built metric and therefore the plug gap should be 0.6mm (+0.1/-0.0) with a maximum wear limit of 0.9mm. Measure in thou if you want but you speedo will not measure furlongs so make life easy and buy a set of feeler gauges that are metric (£5 or less).

    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
BobT wrote:BMWs were built metric and therefore the plug gap should be 0.6mm (+0.1/-0.0) with a maximum wear limit of 0.9mm. Measure in thou if you want but you speedo will not measure furlongs so make life easy and buy a set of feeler gauges that are metric (£5 or less).
Uh-oh, beside gapping my spark plugs in thousandths I have been buying oil for my BMW's in non-metric gallon jugs.  Am I unwittingly damaging my engines???


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Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

Rick G

Rick G
admin
admin
Nuthin wurse than buyin oil by the gallun it'll wreck the injun.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

92KK 84WW Olaf

avatar
Life time member
Life time member
Not up to now but them imperial long chain molecule holder jugs are no longer compatible with them metric long chain molecules.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
RicK G wrote:Nuthin wurse than buyin oil by the gallun it'll wreck the injun.

Oh no!!!!!   My bricks are doomed!!!  affraid


__________________________________________________
Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

92KK 84WW Olaf

avatar
Life time member
Life time member
Just don't buy it from a cowboy and you injun will be ok.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

Crazy Frog

Crazy Frog
admin
admin
Last set of bosh X5DC that I bout on the Internet are made in ..... India.
I will try them after I replace the injectors.


__________________________________________________
Spark plugs...what do you swear by?  Frog15Spark plugs...what do you swear by?  Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

AL-58

AL-58
Life time member
Life time member
Point-Seven-five wrote:
BobT wrote:BMWs were built metric and therefore the plug gap should be 0.6mm (+0.1/-0.0) with a maximum wear limit of 0.9mm. Measure in thou if you want but you speedo will not measure furlongs so make life easy and buy a set of feeler gauges that are metric (£5 or less).
Uh-oh, beside gapping my spark plugs in thousandths I have been buying oil for my BMW's in non-metric gallon jugs.  Am I unwittingly damaging my engines???
And I'll bet they are those undersized US gallons not the full sized Imperial gallon.

Al


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'08 F650GS (798cc)
'19 R1250RS

+ another boxer engined motorcycle and sidecar

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

Spark plugs...what do you swear by?  K-dogs10
    

Rick G

Rick G
admin
admin
Yeah if you use those undersize galluns of gas then you'll be runnin lean.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

K75cster

K75cster
Life time member
Life time member
Oh Dear, Imperial Gallons bigger than American ones Imperial long chain molecules longer then Metric ones, a shift from metric gaps to imperial gaps to create a greater search area for that explodable stuff in the combustion chamber, we are so lucky we have a under square engine as I cant imagine how hard it would be to ignite anything in there if it was over square. I truly hope none of you have round gas cans for these square engines and all these chains of molecules on a shaftie at that. Where will it all end. Whose Bosch will we trust. Where do we buy spare sparks for our X5DC's or AC's for that matter, we need a rectifier for the cause. Blister packs like all blisters aren't welcome, but put them in a cardboard carton and I'll buy them by the boxful. Before I am kicked up the D7EA I'll finish this post. Laughing


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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.
    

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