Spark plugs - Road Star Warrior Forum : Yamaha Star Warrior Forums

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Old 11-06-2014, 09:12 PM   #1 (permalink)
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Default Spark plugs

What's the best spark plug to use in my warrior it has pipes woodys intakes
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Old 11-07-2014, 01:58 AM   #2 (permalink)
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I would say The NKG Iridium.
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Old 11-07-2014, 03:31 AM   #3 (permalink)
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I like Autolite 4164's in my Warrior, I modify them.

I like to index the plugs +, I don't often do this but I'll share another engine builder "speed secret"

Side gap them. Found a how to on line:

Side gapping a spark plug - MopedWiki


For our Harley riders here with a newer Harley running the Delphi system you will get error codes using the iridium plugs. No issues running them in a Warrior
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Old 11-07-2014, 04:09 AM   #4 (permalink)
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NGK Iridium IX with tapered v-profile ground electrode.
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Old 11-07-2014, 04:41 PM   #5 (permalink)
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+1 NGK Iridium. \m/
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Old 11-07-2014, 07:36 PM   #6 (permalink)
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Thank u all




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Old 11-07-2014, 08:31 PM   #7 (permalink)
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Um, you're welcome. Oh, by the way, for what?
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Old 11-08-2014, 06:38 AM   #8 (permalink)
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Threads merged, thread moved to appropriate forum.
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Old 11-08-2014, 07:17 AM   #9 (permalink)
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Quote:
Originally Posted by Churchkey View Post
I like Autolite 4164's in my Warrior, I modify them.

I like to index the plugs +, I don't often do this but I'll share another engine builder "speed secret"

Side gap them. Found a how to on line:

Side gapping a spark plug - MopedWiki


For our Harley riders here with a newer Harley running the Delphi system you will get error codes using the iridium plugs. No issues running them in a Warrior
Thanks for posting this Churchkey. Makes a lot of sense to get the most fire exposed. I have to ask, why do you choose Autolite over NGK? Just curious.
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Old 07-05-2018, 10:42 PM   #10 (permalink)
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Is the correct model for the 2005 Warrior the NGK Iridium IX Spark Plug #7803?
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