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Spark plugs

Posted: Fri Oct 07, 2016 2:41 pm
by dalgreenmichael
Hello can someone please tell me the correct plugs for vfr400 nc21 and plug gap as I'm getting confused with responses. Thanks

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Re: Spark plugs

Posted: Sun Oct 09, 2016 12:50 pm
by magg
If you can believe NGK they claim a DPR8EA-9 fits the 1986-87 VFR400 (NC21)and a C8EH-9 a 1987-88 VFR400 (NC24), both 0.9mm.

Re: Spark plugs

Posted: Fri Oct 14, 2016 7:13 pm
by Neosophist
looks like you cannot believe NGK.

C8EH9 is the correct plug for the nc21 and nc24. (that is going from my honda service manual), out of all the nc21's / 24's i've worked on, none of them have ever has D plugs, I think they'd hit the valves.

0.8mm plug gap.

Re: Spark plugs

Posted: Sat Oct 15, 2016 4:26 pm
by dalgreenmichael
Thanks much appreciated.

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