K11 Owners Group

joeangi · Posted: Fri Apr 16, 2010 10:14 am Post subject: NGK Plugs

It appears that the general concensus is that the Iridium plugs are the way to go. Just wondering if you use the same plugs on the K100 as the K1100?

Where is the best place to get them?

Thanks,
Joe
_________________
1994 K1100RS
1986 K100RS

RAL88 · Posted: Fri Apr 16, 2010 10:57 am Post subject:

Try here at NGK's website. The have a part finder section and it does look as if they are different between the K100 and the K1100.

http://www.ngksparkplugs.com/part_finder/motorcycles/step3.asp
_________________
Rich

"If it ain't broke, take it apart and make it work better"
*************
'96' K1100LT-SE
'97' R850GS-R

Flying Duck · Posted: Fri Apr 16, 2010 11:10 am Post subject:

Napa has them for about $8. DR7EIX

Might not be advisable on a K75 due to the resistive gap in the ignition wires.

Why do K75s have different spark plug leads than a K100? Got me.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

joeangi · Posted: Fri Apr 16, 2010 11:51 am Post subject:

Maybe that is why they are so smooth!
_________________
1994 K1100RS
1986 K100RS

joeangi · Posted: Fri Apr 16, 2010 12:41 pm Post subject:

Thanks for the web site. It appears that the K1100 uses the DR7E1X and the K100 uses the DR8E1X. The DR8 is a little "colder"
_________________
1994 K1100RS
1986 K100RS

Flying Duck · Posted: Fri Apr 16, 2010 1:00 pm Post subject:

Boy, this is odd. Out of curiosity I looked up the K75. They recommend the DR7EIX. The BMW parts catalog shows BoschX5DC for both the K75 and K100 models. Obviously it's the same plug so same heat range.

Bottom line: 7 or 8, I doubt it matters that much.

(Your LED kits were mailed yesterday. Cool

)
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

Ted · Posted: Fri Apr 16, 2010 2:55 pm Post subject:

For the K75 - X5DC = NGK D7EA, I guess the D7EIX is the irridium version?
_________________

Ted

KOG#1

Flying Duck · Posted: Fri Apr 16, 2010 3:34 pm Post subject:

I'm pretty sure they only have a resistive one. I plan to do some experimenting with the DR7EIX and some Magencor ignition leads vs. OEM leads and see what happens. Also compare the D7EA plugs.

I wish I had access to a free dyno. Crying or Very sad

_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

joeangi · Posted: Fri Apr 16, 2010 4:31 pm Post subject:

It sounds like you guys are saying that you cannot run resistive plugs on a k75 due to the "air gap" in the wires? I think that the resistor plugs would be good in the k100 as it is quite noisy (electrically)
_________________
1994 K1100RS
1986 K100RS

Off the grid · Posted: Fri Apr 16, 2010 5:40 pm Post subject:

I always wondered if the LT would run cooler if I put cooler plugs in. Never did get a chance to try it.
_________________
Bane of your existence since July 2006
2007 Triumph Tiger ABS. "Sabertooth"
2009 Husqvarna TE610. "The dirty Italian mistress"

Flying Duck · Posted: Fri Apr 16, 2010 5:54 pm Post subject:

Scott_Anderson · Posted: Sat Apr 17, 2010 7:58 am Post subject:

Drake, am I wrong in my thinking that with the NGK's, one needs to also find some of those little screw-on caps for the tops? I didn't think that they came with them.
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

drikko · Posted: Sat Apr 17, 2010 8:27 am Post subject:

No they don't but they do come with the ones that are currently in your bike. I just moved them over, problem solvered.
_________________
K1100RS '97
Laverda RGS 1000 '84
Jim Young Trailer Sailer 5.7M WB

DISCLAIMER:- Anything I say may have been when I was drunk so please don't take it personally.

'Bigamy is having one wife/husband too many. Monogamy is the same.'
Oscar Wilde

Scott_Anderson · Posted: Sat Apr 17, 2010 8:36 am Post subject:

Thanks for the confirmation.
Some plugs have a solid top that can't be removed. I know that the Bosch plugs I have used have a solid top.
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

6899 · Posted: Sun Apr 18, 2010 5:38 pm Post subject:

Guys, I got the plugs for my K1100LT from Rock Auto but...

No terminal nuts came with the plugs. So I returned them (NOBODY had these terminal nuts)

Got XR7LDC instead. Confused

Martin
_________________
1996 K1100LT, 73K (bought at 61K on 2006)
1977 R100/7, bought new, rode 97K in 29 yrs before parting out
1970 R50/5, bought used, rode 40K & sold

BMWMOA #6899 since 1976
Indy BMW Club since 1975

Jim · Posted: Sun Apr 18, 2010 6:20 pm Post subject:

Yeah - I had the same problem - but forged ahead. Bought four of the cheapest plugs I could get with the twist tops - took the tops and pitched the plugs...
_________________
Jim
1997 K1100LTSE 94,000 - still has gremlins!
1995 R100RT Classic 16,650 crashed - repaired!
1992 K75RTP 46,000

"We shall not all die, but we shall all be changed."

Off the grid · Posted: Sun Apr 18, 2010 6:29 pm Post subject:

It was always kind of mind-boggling that the NGKs never came with tops.
_________________
Bane of your existence since July 2006
2007 Triumph Tiger ABS. "Sabertooth"
2009 Husqvarna TE610. "The dirty Italian mistress"

Ernie-NH · Posted: Sun Apr 18, 2010 7:22 pm Post subject:

Hi guys...

What I do is: I buy Champion plugs for my lawn mower, snow blower and chain saws... I save the plug tip nuts and have a collection for use with the NGKs which I use on all my MCs. You might try that scheme as well...

Best regards........// Ernie-NH
_________________
AMA,, American Deaf Bikers
Airhead Beemers Club
'11 G650gs
'95 K1100LT
'76 R100/7

Scott_Anderson · Posted: Sun Apr 18, 2010 7:59 pm Post subject:

I got a set of caps with the Realm plug wires, so I think that I'm set for the moment.

Otherwise I thought about a visit to my local small engine repair shop to pick thru the used plug bucket. Wink

_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

Stoked Steve · Posted: Sun Apr 18, 2010 8:56 pm Post subject: