Wildguzzi.com
General Category => General Discussion => Topic started by: Kiwi_Roy on November 12, 2025, 05:23:18 PM
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My V7III Special has done almost 35,000 KM (21,875 miles) on the original plugs.
I think I should spoil it and replace with a new set.
If I google it tells me NGK CPR8EB-9, I think these are standard resistor type
Any other recommendations?
e.g. Iridium plugs or other brands
thanks
Roy
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Mine have 32500 on them. Gap the old ones and ride.
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MG must own a bunch of stock in spark plug companies. :evil: I have never changed spark plugs as routine maintenance. My only two high mileage vehicles have been diesels. A V6 Chrysler I owned recommended the spark plugs be changed at 100K, they were iridium though.
kk
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Does anyone know how to cross reference iridium plugs to the usual type?
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Does anyone know how to cross reference iridium plugs to the usual type?
30 second search:
https://www.clubplug.ca/static/pdf/ngk-to-ngk-iridium-cross-reference-charts.pdf
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The cross reference doesn't list the original NKG ZCPR8EB-9s as per the manual
I picked up a pair as listed at a local auto store and changed them out
3mm allen key, a 16mm deep socket, a smidgen of Never Seize and 20 minutes later.
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The cross reference doesn't list the original NKG ZCPR8EB-9s as per the manual
Drop the unusual Z (Inductive Suppressor or Extra Projected?) prefix and there's an equivalent CR8EIX.
https://www.ngkpartfinder.co.uk/assets/Uploads/ngk_motorcycle_sm00100420_2_.pdf
https://www.ngkpartfinder.co.uk/assets/Uploads/NGK_Upgrades.pdf