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General Category => General Discussion => Topic started by: pyoungbl on June 12, 2015, 03:58:07 PM

Title: Iridium plugs for the single TB V7
Post by: pyoungbl on June 12, 2015, 03:58:07 PM

Nobody lists a cross reference for Iridium plugs in the newer V7.  Turns out the CR8EIB-9 (product 5258) is the one to get.  Expensive as hell so they MUST be better.  Seriously, I have had great results using Iridium plugs in other bikes so thought I'd try them in the baby block.  In the Stelvio I got faster starts, particularly when cold.  She also seemed to run better hot or cold.  It might be my imagination but I think I got slightly better fuel mileage.

Peter Y.

Title: Re: Iridium plags for the single TB V7
Post by: Kev m on June 12, 2015, 04:09:03 PM

Let us know what you learn.

Title: Re: Iridium plags for the single TB V7
Post by: Triple Jim on June 12, 2015, 04:22:10 PM

I've used wire electrode plugs in engines that were prone to fouling plugs, and they do seem to resist that somewhat better than standard plugs, but I've never noticed any performance gains, easier starting, or anything like that.

Title: Re: Iridium plags for the single TB V7
Post by: clubman on June 12, 2015, 05:21:38 PM

Use the Ir. in my V7C, 23K still look like new. Have a set in my Tri. Sprint with 38K same deal. Definitely better cold starting, never noticed better mileage. Try Sparkplugs.com for a more reasonable price. The NGK website will give you correct crossover #'s.

Title: Re: Iridium plags for the single TB V7
Post by: makarushka on June 12, 2015, 06:46:58 PM

Another option is to swap the spark plug boots for NGK XD05f and use the iridium plugs from Denso, part number IU24 (5632)...

Title: Re: Iridium plags for the single TB V7
Post by: pyoungbl on June 12, 2015, 07:16:04 PM

Quote from: clubman on June 12, 2015, 05:21:38 PM

The NGK website will give you correct crossover #'s.

Try it...no joy.  The closest thing is what they list as the V 70, 700cc, no plug listed.

Title: Re: Iridium plugs for the single TB V7
Post by: kevdog3019 on June 12, 2015, 11:16:50 PM

I like them in the V11 lemans. Better response. The stock Lario didn't notice a difference. Should try in this Lario. I'm curious about your findings. I'm a believer.

Title: Re: Iridium plugs for the single TB V7
Post by: Yukonica on June 13, 2015, 10:58:58 AM

Triple Jim: "When the Brussels sprout fails to venture from its lair, it is time to roll a beaver up a grassy slope."

Either a closet Canadian slogan or multi-nationalist slur; can't figure which. :)
Personally... I wouldn't dare roll a beaver anywhere. They cut trees down with their teeth.

Headed to town now to see if these plugs are available locally (laughing).

Title: Re: Iridium plugs for the single TB V7
Post by: Triple Jim on June 13, 2015, 11:14:05 AM

As I remember, there was a Hot Rod Magazine article back in the '70s, and a race team had some mechanical problems that put them out of the race.  The lesson learned was stated to be "When the Brussels Sprout..."

Title: Re: Iridium plugs for the single TB V7
Post by: sib on June 13, 2015, 01:45:48 PM

Just repeating what I learned on http://advrider.com/forums/showthread.php?t=835438&page=94

The correct NGK plug is CR8EIB-9

Cost about $8 apiece at various online sources.