Autolite Iridium spark plugs. Opinions?

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18 Oct 2016 12:33 #745589 by tomsbadkz
Autolite Iridium spark plugs. Opinions? was created by tomsbadkz
I know that most use the NGK BR8ES spark plugs. Whats the advantage or disadvantage of running Iridium spark plugs?

1977 kz1327
Cavanaugh Head 38.6/33
38mm Flatslides
MRE racecut trans
300mm rear tire
Web Cams 435/465

1984 GPZ1100
Cavanaugh Head
1170cc
Web 415 cams
RC Hp Inj.
Bored throttle bodies

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18 Oct 2016 13:10 - 18 Oct 2016 16:21 #745596 by Nessism
Replied by Nessism on topic Autolite Iridium spark plugs. Opinions?
Iridium plugs are designed to last for a long time. There are different brands and grades of iridium plugs which vary in durability, so the devils in the details, but the best grades will literally run 100,000 miles in a car. The issue with running them in an old motorcycle is that most are resistor type, and you don't want to run a resistor plug if you are using a resistor type spark plug cap such as came on our bikes. And speaking of spark plug caps, you need to get plugs with the proper top to match with your caps. The OEM resistor caps need plugs with a threaded top, and not all iridium plugs are sold that way.

I bought a set of NGK Iridium IX : BR8EIX plugs for my bike and ran them briefly before realizing they are resistor type so they were removed. If you can use them I'll make you a good deal.
Last edit: 18 Oct 2016 16:21 by Nessism.

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  • slmjim+Z1BEBE
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18 Oct 2016 13:13 #745598 by slmjim+Z1BEBE
Replied by slmjim+Z1BEBE on topic Autolite Iridium spark plugs. Opinions?
Google is your friend. Decide for yourself.

www.sparkplugs.co.uk/iridium-spark-plugs

en.m.wikipedia.org/wiki/Iridium


Good Ridin'
slmjim & Z1BEBE

A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.

1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk x2
2009 ST1300A

www.kawasaki-z-classik.com
An enthusiast's forum focused exclusively
on all things Z1, Z2 and KZ900.

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18 Oct 2016 15:45 - 18 Oct 2016 15:45 #745615 by tomsbadkz
Replied by tomsbadkz on topic Autolite Iridium spark plugs. Opinions?
I'm using Dyna S 8mm wires which work with standard plug tips. The BR8ES is a resister plug,right?

1977 kz1327
Cavanaugh Head 38.6/33
38mm Flatslides
MRE racecut trans
300mm rear tire
Web Cams 435/465

1984 GPZ1100
Cavanaugh Head
1170cc
Web 415 cams
RC Hp Inj.
Bored throttle bodies
Last edit: 18 Oct 2016 15:45 by tomsbadkz.

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  • SWest
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  • 10 22 2014
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18 Oct 2016 15:55 #745617 by SWest

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18 Oct 2016 16:23 #745619 by tomsbadkz
Replied by tomsbadkz on topic Autolite Iridium spark plugs. Opinions?
Running the DW800 wires

1977 kz1327
Cavanaugh Head 38.6/33
38mm Flatslides
MRE racecut trans
300mm rear tire
Web Cams 435/465

1984 GPZ1100
Cavanaugh Head
1170cc
Web 415 cams
RC Hp Inj.
Bored throttle bodies

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18 Oct 2016 16:53 #745622 by zukdave
Replied by zukdave on topic Autolite Iridium spark plugs. Opinions?
I think the only thing that'd run better would be the money leaving your wallet.

1980 KZ650 F1
ZX750A1 motor.
Wiseco 810cc kit.
Zukiworks racing ported head.
VM 29 smooth bore's.
Dyna 2000 Ign. w/Dyna mini coil's
APE cylinder stud's and nut's.
APE valve spring's.
APE Track King clutch.
V/H KZ1000 sidewinder.
3.5x18 laced to a KZ1000 disk hub.
150/60/18 Shinko 006 Podium.
63" wheel base.

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18 Oct 2016 17:49 #745625 by Nessism
Replied by Nessism on topic Autolite Iridium spark plugs. Opinions?

tomsbadkz wrote: Running the DW800 wires


With those wires you don't need resistor plugs.

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  • SWest
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  • 10 22 2014
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18 Oct 2016 17:55 #745626 by SWest
Replied by SWest on topic Autolite Iridium spark plugs. Opinions?
Dave I have Accel wires. Are they resistor? They came with the coils.
Steve

Attachments:

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18 Oct 2016 21:26 #745638 by DFIGPZ
Replied by DFIGPZ on topic Autolite Iridium spark plugs. Opinions?
I use them as much as possible.

1984 750 Turbo

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19 Oct 2016 01:59 #745642 by tomsbadkz
Replied by tomsbadkz on topic Autolite Iridium spark plugs. Opinions?
Cool. Thanks. Hey B. I'm still gonna get with you about motor. I just got back to work after a fall there breaking my tailbone and banging up my left elbow. Workers comp money isn't that good. Was off for 4 1/2 months. Ouch. :(

1977 kz1327
Cavanaugh Head 38.6/33
38mm Flatslides
MRE racecut trans
300mm rear tire
Web Cams 435/465

1984 GPZ1100
Cavanaugh Head
1170cc
Web 415 cams
RC Hp Inj.
Bored throttle bodies

Please Log in or Create an account to join the conversation.

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