Which spark plug? - Page 2 - Kawasaki Ninja H2 Forum
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post #11 of 18 Old 06-29-2019, 12:12 PM Thread Starter
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Yes, your right. Better safe than sorry it is then.
I'll post pictures of old plugs.
Be a week or two.
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post #12 of 18 Old 06-29-2019, 03:08 PM Thread Starter
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After reading up on the racing plug, I'm almost tempted to see if I notice the difference. Double the price of the oe they maybe, but if it gains you a horsepower or three, they could be construed as somewhat of a bargain. Lol.
Some empirical data would be good.
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post #13 of 18 Old 06-29-2019, 05:23 PM
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The racing plugs mentioned above have no earth strap , they rely on the proximity of the body for the spark path (so you cant change the gap)
also a colder plug

More intended for the likes of methanol with a big ignition system

As the H2 has a capacitor discharge ignition you cant realy do much to boost it , it is pretty good , but any upgrades would start with a standalone ecu
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post #14 of 18 Old 06-29-2019, 05:45 PM
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Used them in my old H1 triple. To change the heat range the plugs had different electrode diameter. Used them because the lack of carbon build up and were easy to lean.
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post #15 of 18 Old 06-30-2019, 06:03 AM
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NGK Racing spark plugs with ground electrode are the R0451C-10 or the R0451B-8
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post #16 of 18 Old 07-05-2019, 08:01 AM
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Another question. If boosted stage 2 or 3 gears - what the limit will be of silmar9b9? 3k miles? In manual noted as 30k miles...
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post #17 of 18 Old 07-05-2019, 09:03 AM
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Yes, 3 to 6 k at maximum. Common issue with silmar9b9 is the ground electrode melting/breaking.
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post #18 of 18 Old 07-05-2019, 05:17 PM
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If the ground electrode is melting its got nothing to do with milage,
Your running too lean and resulting combustion temps are too high
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