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Author Topic: Iridium Spark Plugs  (Read 6362 times)

MultiplexMan

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Iridium Spark Plugs
« on: December 23, 2009, 04:17:05 PM »
Hi,

Does anyone have any experience running NGK Iridium spark plugs in their R65?  

They work a treat in the W650 - so worth an ask  ;)

Cheers, MM
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Offline montmil

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Re: Iridium Spark Plugs
« Reply #1 on: December 23, 2009, 04:50:55 PM »
Cost more, for sure. I run plain ol' airhead simple NGK's in both my R65s but some prefer the plain ol' airhead simple Bosch.   Monte
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Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

benita

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Re: Iridium Spark Plugs
« Reply #2 on: December 23, 2009, 07:02:37 PM »
Yes ,Have been running them in my 83 R65 for 5 years now.Love em.
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Offline Semper Gumby

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Re: Iridium Spark Plugs
« Reply #3 on: December 24, 2009, 08:21:54 AM »
Yes.  BPR7EIX - I run them with the 0 ohm ngk spark caps.  Work great.  They have been in for a long time... (25,000 miles)

The part number on the NGK 0 ohm caps is LZFW.
« Last Edit: December 24, 2009, 08:22:22 AM by Semper_Gumby »
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Bill Gould ?1980/03 R65 When at first you don't succeed....Moo!

drewboid

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Re: Iridium Spark Plugs
« Reply #4 on: December 25, 2009, 08:26:31 AM »
I'm running the Iridium plugs in all the airheads. It really made a difference in kickstarting the /2 with magneto ignition.

In my opinion they are worth the price. YMMV
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Offline Bob_Roller

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Re: Iridium Spark Plugs
« Reply #5 on: December 25, 2009, 09:19:09 AM »
What kind of prices, are we talking about for the sparkplugs ?
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'81 R65
'82 R65 LS
'84 R65 LS
'87 Moto Guzzi V65 Lario
'02 R1150R
Riding all year long since 1993 .
I'll give up my R65, when they pry my cold dead hands from the handlebars !!!!!

Offline Semper Gumby

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Re: Iridium Spark Plugs
« Reply #6 on: December 25, 2009, 09:27:35 AM »
I think they are about 8 bucks a pop these days.  I'm about to bead blast the rust off the outside of mine.
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Bill Gould ?1980/03 R65 When at first you don't succeed....Moo!

Offline Bob_Roller

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Re: Iridium Spark Plugs
« Reply #7 on: December 25, 2009, 09:31:01 AM »
I had Bosch Platinum plugs in the '81 R65, and they didn't like the wasted spark ignition system, the center electrode eroded to about .080 inches (2mm) below the insulator tip, after only 8-9,000 miles .

Just curious, if these plugs exhibited the same 'behavior' .
« Last Edit: December 25, 2009, 09:32:29 AM by Bob_Roller »
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'81 R65
'82 R65 LS
'84 R65 LS
'87 Moto Guzzi V65 Lario
'02 R1150R
Riding all year long since 1993 .
I'll give up my R65, when they pry my cold dead hands from the handlebars !!!!!

benita

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Re: Iridium Spark Plugs
« Reply #8 on: December 25, 2009, 02:42:51 PM »
Yes Bob, I have had the NGK Iridiums in for almost 20,000 miles, with a brown Dyna Coil.Have had no electrode errosion at all.The gap seems to stay the same as when I first initially gapped and installed them.I paid $10.00 a piece off Ebay.But well worth the extra $$$.I wouldn't run anything else.
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Offline Barry

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Re: Iridium Spark Plugs
« Reply #9 on: December 25, 2009, 03:16:41 PM »
Quote
Yes.BPR7EIX - I run them with the 0 ohm ngk spark caps.  

I guess you are using 0 ohm plug caps because they are resistor plugs.

Does anyone know if iridium plugs are available as a non-resistor type.
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Barry Cheshire, England 79 R45

Offline Motu

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Re: Iridium Spark Plugs
« Reply #10 on: December 25, 2009, 06:20:22 PM »
The BMW has a single coil and waste spark - that means one plug jumps from centre electrode to earth,the other from side to centre.So you need double plat,or one with plat centre,the other with plat earth.

I use Bosch Plus 4 - they last just as long as a plat or iridium.
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MultiplexMan

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Re: Iridium Spark Plugs
« Reply #11 on: December 26, 2009, 05:36:48 PM »
Thanks for all the replies.  I guess I'll be trying some Iridiums.

I'm working my way through ALL the posts before I ask the obvious - leads, coils, diode box, alternator questions  ::)

Cheers, MM
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ukzknos

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Re: Iridium Spark Plugs
« Reply #12 on: December 28, 2009, 07:06:38 AM »
Quote
BPR7EIX - I run them with the 0 ohm ngk spark caps.

Which are the 0 ohm NGK caps; the red ones or the black ones?

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Offline Semper Gumby

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Re: Iridium Spark Plugs
« Reply #13 on: January 08, 2010, 05:02:58 PM »
They are both black!
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Bill Gould ?1980/03 R65 When at first you don't succeed....Moo!

Offline Bob_Roller

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Re: Iridium Spark Plugs
« Reply #14 on: January 08, 2010, 05:06:41 PM »
Physically, you can't tell them apart, for what I can see .

Need to put a multimeter on one to tell for sure .
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'81 R65
'82 R65 LS
'84 R65 LS
'87 Moto Guzzi V65 Lario
'02 R1150R
Riding all year long since 1993 .
I'll give up my R65, when they pry my cold dead hands from the handlebars !!!!!
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