iridium Spark Plugs

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sixbennetts
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Re: iridium Spark Plugs

Post by sixbennetts » Sat Nov 30, 2019 5:52 pm

Been using Iridium plugs straight out of the box, ungapped, for years. They've significantly improved everything I put em in.

Those, and Royal Purple synth in the motor, and Redline Heavy Shockproof in the crunchbox & final drive, have woken up our 07 Retro.

I'll never buy anything else BUT Iridium.
I have a funny wife. Hilarious, really.
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2007 Ural Retro, "Подарок солдата солдату"

"I'm slow and like to go old."
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windmill
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Re: iridium Spark Plugs

Post by windmill » Fri Dec 06, 2019 6:20 pm

I decided to give them a try on my 2018 M70, and they seem to have improved cold weather starting, smoothed and increased the idle, reduced decell popping, and almost eliminate the small throttle, low rpm stutter.

No noticable change in power, acceleration, or fuel economy.

Nothing was done other than changing the plugs.
Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018/20 M70

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chaos2
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Re: iridium Spark Plugs

Post by chaos2 » Fri Dec 06, 2019 9:36 pm

I tried them back to back with BP7HS's and didn't note any difference after a year. Maybe after another 100,000km :D
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windmill
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Re: iridium Spark Plugs

Post by windmill » Sat Dec 07, 2019 12:31 am

chaos2 wrote:
Fri Dec 06, 2019 9:36 pm
I tried them back to back with BP7HS's and didn't note any difference after a year. Maybe after another 100,000km :D
I used them on my 2007 patrol for no reason other than that's what they had at the auto parts store at the time I needed plugs. There's some difference on the patrol too, but much more subtle.
I've noticed carbed, and EFI rigs react differently to similar changes. The EFI system automatically adjusts to changes, a carbed rig may need some tuning to get the most out of a change.
Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
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Re: iridium Spark Plugs

Post by Geno89074 » Sat Dec 07, 2019 1:41 am

I put in the iridiums with them gapped out of the box, did not use the ural spec for plug gaps (since i did not want to damage the iridium tips) when I did the valve adjustment.
Rig is running great since the off-road map was installed, throttle bodies balanced and new fuel pump installed.
Am also running the iridiums in 3 carbed bikes and 2 fuel injected triumphs. So far so good.
2014 Ural Patrol

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windmill
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Re: iridium Spark Plugs

Post by windmill » Sat Dec 07, 2019 4:23 am

Geno89074 wrote:
Sat Dec 07, 2019 1:41 am
I put in the iridiums with them gapped out of the box, did not use the ural spec for plug gaps (since i did not want to damage the iridium tips) when I did the valve adjustment.
Rig is running great since the off-road map was installed, throttle bodies balanced and new fuel pump installed.
Am also running the iridiums in 3 carbed bikes and 2 fuel injected triumphs. So far so good.
Some spark plug tools have a notched tool to safely adjust the gap without contacting the tip.

https://www.amazon.com/Stanley-Proto-J0 ... B002BXJ7F8

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"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

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Re: iridium Spark Plugs

Post by Msblu79 » Sat Dec 07, 2019 9:56 am

Just an FYI for all, I recall reading somewhere that if you are running a Power Arc ignition it is NOT recommended to use those type plugs. Not sure why so I have been using the standard plug with no issues so far. Has anyone run them with the PA? :)
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Re: iridium Spark Plugs

Post by Tomcatfixer » Sat Dec 07, 2019 9:57 am

Some spark plug tools have a notched tool to safely adjust the gap without contacting the tip.
Pardon my ignorance, but I wasn't aware that there was any other way to adjust the gap without contacting the tip. Well, I guess, except for needle-nose pliers. What other gap adjusting means do people use?
- Chad

Gordonsville, Virginia, USA

Current rides:
2015 Ural cT "Mobile Chernobyl", 2001 Ural Patrol "Little Red Bear", 1999 Ural Tourist "The RPOC", Mid-Nineties Ural Tourist "The Heap", 1994 Honda VFR750F

Previous rides:
2007 Honda VTR1000 FireStorm (Super Hawk in U.S.)
2001 Buell Blast! - - - - - - - 2005 Yamaha FJR1300
1993 Honda CBR600F2 - -1984 Yamaha FJ1100
Two different 1986 Yamaha FZX700S Fazers

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Re: iridium Spark Plugs

Post by Lofty » Sat Dec 07, 2019 4:10 pm

Tomcatfixer wrote:
Sat Dec 07, 2019 9:57 am
Some spark plug tools have a notched tool to safely adjust the gap without contacting the tip.
Pardon my ignorance, but I wasn't aware that there was any other way to adjust the gap without contacting the tip. Well, I guess, except for needle-nose pliers. What other gap adjusting means do people use?
Perhaps windmill (and you, TCF :wink: ) meant to draw a distinction between the center electrode and the side electrode? The former is the delicate part on an iridium spark plug that shouldn't be touched. The latter is what we manipulate to adjust (set) the gap.
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Re: iridium Spark Plugs

Post by RC20 » Sat Dec 07, 2019 4:15 pm

I use the tool Barry shows.

You bend the ground electrode. So technically you touch an electrode but generally the electrode per common verbiage is the center part not the side ground part.
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Re: iridium Spark Plugs

Post by treeman1942 » Sat Dec 07, 2019 10:29 pm

sixbennetts wrote:
Sat Nov 30, 2019 5:52 pm
Been using Iridium plugs straight out of the box, ungapped, for years. They've significantly improved everything I put em in.

Those, and Royal Purple synth in the motor, and Redline Heavy Shockproof in the crunchbox & final drive, have woken up our 07 Retro.

I'll never buy anything else BUT Iridium.
I agree, Iridium plugs almost always improve performance in gas engines. I also firmly believe in Royal Purple motor oil, and use it in all of my gas engines. In my next transmission and final drive change, I will use Redline just because it's easier to see leaks, etc.

Hey, I envy and respect your loving comments about your wife, very refreshing. For me, maybe someday.
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sixbennetts
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Re: iridium Spark Plugs

Post by sixbennetts » Sun Dec 08, 2019 1:23 am

Thanks, man. She's the rock to my roll, the saver of my soul.
I have a funny wife. Hilarious, really.
I love her, she loves me.
______________________________________
2007 Ural Retro, "Подарок солдата солдату"

"I'm slow and like to go old."
Plattsburgh NY

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windmill
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Re: iridium Spark Plugs

Post by windmill » Sun Dec 08, 2019 9:37 am

Msblu79 wrote:
Sat Dec 07, 2019 9:56 am
Just an FYI for all, I recall reading somewhere that if you are running a Power Arc ignition it is NOT recommended to use those type plugs. Not sure why so I have been using the standard plug with no issues so far. Has anyone run them with the PA? :)
Power arc calls for 5k Ohm resistor plugs, and the NGK BPR7HIX meets that requirement.

http://www.powerarc.com/sparkplug.html
" "R" or resistor spark plugs use a 5k ohm ceramic resistor in the spark plug to suppress ignition noise generated during sparking."

https://www.ngk.com/product.aspx?zpid=9496
Thread Size: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor Value: 5K Ohm
Reach: 12.7mm (1/2")
Hex Size: 13/16" (21mm)
Terminal Type: Removable Nut
Overall Height: JIS
Gap: .031" (0.8mm)

My Patrol has a Power Arc ignition, and I've run BPR7HIX plugs.
Last edited by windmill on Sun Dec 08, 2019 10:15 am, edited 5 times in total.
Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018/20 M70

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windmill
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Re: iridium Spark Plugs

Post by windmill » Sun Dec 08, 2019 9:59 am

Lofty wrote:
Sat Dec 07, 2019 4:10 pm
Tomcatfixer wrote:
Sat Dec 07, 2019 9:57 am
Some spark plug tools have a notched tool to safely adjust the gap without contacting the tip.
Pardon my ignorance, but I wasn't aware that there was any other way to adjust the gap without contacting the tip. Well, I guess, except for needle-nose pliers. What other gap adjusting means do people use?
Perhaps windmill (and you, TCF :wink: ) meant to draw a distinction between the center electrode and the side electrode? The former is the delicate part on an iridium spark plug that shouldn't be touched. The latter is what we manipulate to adjust (set) the gap.
Yes, "tip" = center electrode.

The notch of a plug gaping tool hooks on the side electrode, allowing one to bend it to adjust clearance, without contacting the tip/center electrode.
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Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018/20 M70

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Re: iridium Spark Plugs

Post by Tomcatfixer » Sun Dec 08, 2019 10:12 am

Alright, I understand now. Your phraseology gave me the impression that folks somehow adjust the gap by means other than bending the ground electrode.
- Chad

Gordonsville, Virginia, USA

Current rides:
2015 Ural cT "Mobile Chernobyl", 2001 Ural Patrol "Little Red Bear", 1999 Ural Tourist "The RPOC", Mid-Nineties Ural Tourist "The Heap", 1994 Honda VFR750F

Previous rides:
2007 Honda VTR1000 FireStorm (Super Hawk in U.S.)
2001 Buell Blast! - - - - - - - 2005 Yamaha FJR1300
1993 Honda CBR600F2 - -1984 Yamaha FJ1100
Two different 1986 Yamaha FZX700S Fazers

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