Author Topic: NGK Spark Plugs For Bricks  (Read 2810 times)

Offline The Mighty Gryphon

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NGK Spark Plugs For Bricks
« on: November 30, 2016, 12:12:27 PM »
Just spoke with an NGK tech rep regarding plugs and plug terminals for BMW K bikes. 

While the NGK cross reference lists the D7EA for the Jetronic equipped K bikes, the terminal is not correct for the wires used.  The proper number should be a D7EB, but they do not make that number anymore. 

For the Motronic equipped models the correct plug is the DR7EB which has the correct heat range, threads, and terminal. 

With regards to the Jetronic, the rep said that their DR7EB resistor plug will work with no negative effects on those bikes as well. 

Bottom line is that I am using DR7EB plugs in all my bricks now. 
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '92K100RS White, '94 K75S Dakar Yellow
"Dohn f wit me, honkey, cuz I dindu nuffin'"

Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'94 K75S "Cheetos"
'92 K100RS "Moby Brick"

Past:
'82 Honda FT500, '80 Honda XR185, '78 Honda XL125, '76 Honda XL125, '74 Honda XL125, '71 Ossa Pioneer, '68 Kawasaki 175

Offline Martin

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Re: NGK Spark Plugs For Bricks
« Reply #1 on: November 30, 2016, 03:50:14 PM »

A local workshop with a BMW trained mechanic told me to run resistor plugs on my K75 DR7EA. So I did give it a go and ran one set I could not discern any difference in performance, so I went back to D7EA.  I kept thinking why would having twice the resistance at the plug be beneficial, but as I said I could discern no difference either way.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s, Lefaux, Vespa V twin

Offline Laitch

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Re: NGK Spark Plugs For Bricks
« Reply #2 on: November 30, 2016, 04:08:58 PM »
I kept thinking why would having twice the resistance at the plug be beneficial, but as I said I could discern no difference either way.
Weren't messages from the mothership coming in with less static?
  • Along the Ridley in Vermont.
  • 1995 K75T 60,000 miles
I wept because I had no radials until I met a man who had no splines.

Offline The Mighty Gryphon

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Re: NGK Spark Plugs For Bricks
« Reply #3 on: November 30, 2016, 04:11:57 PM »
Martin, the reason for using the DR7EB plugs in K75's is to get the solid terminal that works with the BMW plug wires without having to fool around with terminal nuts.   I'm happy with performance either way.

With three bricks in the garage it's nice to know that I only need one model plug for all of them.  And, I don't have to swap terminal nuts anymore. 

Simplicity for the simple minded.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '92K100RS White, '94 K75S Dakar Yellow
"Dohn f wit me, honkey, cuz I dindu nuffin'"

Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'94 K75S "Cheetos"
'92 K100RS "Moby Brick"

Past:
'82 Honda FT500, '80 Honda XR185, '78 Honda XL125, '76 Honda XL125, '74 Honda XL125, '71 Ossa Pioneer, '68 Kawasaki 175

Offline Martin

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Re: NGK Spark Plugs For Bricks
« Reply #4 on: November 30, 2016, 04:19:58 PM »

 :nono  Gryph what are you doing using OEM wires on one of your Bricks, you need to swap to NGK immediately post haste. You are now dammed and will now be stuck in limbo.
Regards a concerned Martin.
  • North Lakes Queensland Australia
  • 1992 K75s, Lefaux, Vespa V twin

Offline F14CRAZY

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Re: NGK Spark Plugs For Bricks
« Reply #5 on: November 30, 2016, 05:02:33 PM »
Optionally, NGK will mail you those terminals if you need them, right?
  • Grand Rapids, MI
  • '87 K75C
'87 K75C w/ Pichler V1 fairing. LED's, CATZ driving lights, Audiovox cruise, LT top case, tons of other mods by Drake...


Offline thecableguy

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Re: NGK Spark Plugs For Bricks
« Reply #6 on: November 30, 2016, 05:28:37 PM »
Optionally, NGK will mail you those terminals if you need them, right?
Not likely..  They can be had at this site, I've used them before in my previous life riding Chinese scooters.


Jim
  • Madison, WI USA
  • 86 K100RT

Offline The Mighty Gryphon

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Re: NGK Spark Plugs For Bricks
« Reply #7 on: December 01, 2016, 03:02:57 AM »
You can get the terminal nuts for free from NGK if you email their tech support and ask nicely.  I have done this in the past.  Maybe if enough of us bothered them every time we change plugs they would bring back the D7EB, but really, why bother when you can just use the DR7EB and not have to screw(no pun intended) with the terminal nut?
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '92K100RS White, '94 K75S Dakar Yellow
"Dohn f wit me, honkey, cuz I dindu nuffin'"

Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'94 K75S "Cheetos"
'92 K100RS "Moby Brick"

Past:
'82 Honda FT500, '80 Honda XR185, '78 Honda XL125, '76 Honda XL125, '74 Honda XL125, '71 Ossa Pioneer, '68 Kawasaki 175

Offline Scott_

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Re: NGK Spark Plugs For Bricks
« Reply #8 on: December 01, 2016, 07:00:00 AM »
I used to be able to get the top nuts from a local small engine shop, they used to have a whole bucket full of them...... :2thumbup:
Unfortunately, the owners retired and no one wanted to take over and keep it going.
  • My Garage
Ride safe.


1997 K1100LT 0302488
1995 K1100LT 0302044
Garmin StreetPilot 2820
Garmin Zumo 550
"One who does not ask questions is ashamed to learn" Danish proverb

Offline mlytle

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Re: NGK Spark Plugs For Bricks
« Reply #9 on: December 01, 2016, 11:32:29 AM »
or just reuse the old ones...i take the nuts off all the spark plugs i replace before tossing.
  • alexandria, va
  • 92 K75s, 94 K75s, 09 K1300s
Marshall
Project Thread "K75s Midlife Refresh"
http://www.motobrick.com/index.php/topic,7810.0.html
"K75s Midlife Refresh V 2.0"
http://www.motobrick.com/index.php?topic=10043.new#new

Offline duckytran

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Re: NGK Spark Plugs For Bricks
« Reply #10 on: September 01, 2017, 10:26:37 AM »
Martin, the reason for using the DR7EB plugs in K75's is to get the solid terminal that works with the BMW plug wires without having to fool around with terminal nuts.   I'm happy with performance either way.

With three bricks in the garage it's nice to know that I only need one model plug for all of them.  And, I don't have to swap terminal nuts anymore. 

Simplicity for the simple minded.


I just ordered the DR7EB for my K75. Does the gap need to be adjusted?


 
  • Austin, Texas
  • 1993 K75

Offline Laitch

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Re: NGK Spark Plugs For Bricks
« Reply #11 on: September 01, 2017, 12:17:19 PM »
I just ordered the DR7EB for my K75. Does the gap need to be adjusted?
The gap is the same as BMW's spec for your K and NGK's spec for the plug 0.6mm+0.1/0.024"+0.004; the gaps of all new plugs should be checked for conformity to spec. Doesn't matter whether they're nutty or nutless. :yes
  • Along the Ridley in Vermont.
  • 1995 K75T 60,000 miles
I wept because I had no radials until I met a man who had no splines.

Offline duckytran

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Re: NGK Spark Plugs For Bricks
« Reply #12 on: September 01, 2017, 12:37:17 PM »
The gap is the same as BMW's spec for your K and NGK's spec for the plug 0.6mm+0.1/0.024"+0.004; the gaps of all new plugs should be checked for conformity to spec. Doesn't matter whether they're nutty or nutless. :yes


Thank you sir Laitch!
  • Austin, Texas
  • 1993 K75

Offline BrickMW

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Re: NGK Spark Plugs For Bricks
« Reply #13 on: September 01, 2017, 01:34:11 PM »
Doesn't matter whether they're nutty or nutless. :yes


I believe the nutless ones have bigger gaps... :eek: :hehehe
  • Huntsville, AL
  • 1986 K75c
Luft & Jager... My two favorite Meister's :bmwsmile

Offline wardie

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Re: NGK Spark Plugs For Bricks
« Reply #14 on: September 25, 2017, 08:06:56 PM »

Why buy NGK's when you can get factory Bosch plugs (twin terminal stock) for the same price?


I was sickened (which quickly became pissed)  when I called my local BMW dealer to find that the standard dual electrode Bosch spark plug for my 1995 K 1100 RS was $18.oo!


I own a 1989 Corvette and occasionally get some parts from Summit Racing. I was looking through the catalog and found the EXACT BOSCH plugs
for $4.05.


I called them and confirmed the plug number and price.


They do mail order. Tremendous savings. Makes you know BMW is really gouging its customers charging 18 bucks and Summit sells them everyday for 4 bucks.
Probably someone from BMWNA will read this post and say what the hey..we gotta shut that down now :)


Get them while you can. Wardie

Offline duckytran

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Re: NGK Spark Plugs For Bricks
« Reply #15 on: September 25, 2017, 11:26:23 PM »
I ended up purchasing genuine BMW plugs from my local dealer for $10 each. Not sure if they're made by Bosch or not. Is there any advantage, perhaps in term of quality, over the NGK or Bosch made plugs?
  • Austin, Texas
  • 1993 K75

Offline The Mighty Gryphon

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  • dyke chik wit attatood
Re: NGK Spark Plugs For Bricks
« Reply #16 on: September 26, 2017, 11:20:04 PM »
Many, many years ago I used NGK plugs in a little Honda 125.  I spent 5-6 years beating bigger European bikes running Bosch and who know what other plugs in enduros and reliability trials. 

Can't see any reason to stop using them now.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '92K100RS White, '94 K75S Dakar Yellow
"Dohn f wit me, honkey, cuz I dindu nuffin'"

Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'94 K75S "Cheetos"
'92 K100RS "Moby Brick"

Past:
'82 Honda FT500, '80 Honda XR185, '78 Honda XL125, '76 Honda XL125, '74 Honda XL125, '71 Ossa Pioneer, '68 Kawasaki 175

Offline Martin

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Re: NGK Spark Plugs For Bricks
« Reply #17 on: September 27, 2017, 03:17:20 AM »
There is definitely nothing wrong with either brand plugs. I've never had a problem with NGK, and for me it comes down to availability and cost.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s, Lefaux, Vespa V twin

Offline BearTrap

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Re: NGK Spark Plugs For Bricks
« Reply #18 on: December 21, 2017, 10:33:34 AM »
Today I'm replacing the Bosch X52C's with the NGK 7912"s on my K75. The Bosch only lasted 5.5K. When I removed them I noticed they had "Made in India" stamped on them. I couldn't find German made anywhere. Goodby Bosch  :musicboohoo:
  • Rancho Mirage, CA
  • 1990 K75 low seat

Offline DavidATL

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Re: NGK Spark Plugs For Bricks
« Reply #19 on: December 30, 2017, 07:51:42 AM »
Today I'm replacing the Bosch X52C's with the NGK 7912"s on my K75. The Bosch only lasted 5.5K. When I removed them I noticed they had "Made in India" stamped on them. I couldn't find German made anywhere. Goodby Bosch  :musicboohoo:


I replaced the plugs in my K75 a couple of weeks ago - Indian Bosch for German Bosch - and kept the older plugs because I felt a bit guilty for putting in plugs that didn't come from the fatherland. They look fine, but I have no information regarding the miles on them (baselining).

  • Atlanta
  • K75RT '92 w/ 19k miles (former bikes: '82 FT500, 80's GL500 Silverwing, 550 Nighthawk and FINALLY an '88 K75S)

Offline BearTrap

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Re: NGK Spark Plugs For Bricks
« Reply #20 on: December 30, 2017, 09:37:07 AM »
I replaced my Indian made Bosch at 5.5k. Had no problem with them. Maybe I was lucky.
  • Rancho Mirage, CA
  • 1990 K75 low seat

Offline gag1025

  • Ride It Like You Stole It
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Re: NGK Spark Plugs For Bricks
« Reply #21 on: January 13, 2018, 04:50:32 PM »
It will drive you nuts trying to find parts made where you want them to be made. Do not be surprised where anything is made.
  • Gibsonville, NC
  • 1992 BMW K 75 RT ABS but soon to be a Naked K75