CBR Forum - Enthusiast forums for Honda CBR Owners - Need a consensus on spark plug replacement frequency for your F4i

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pharoah247

08-22-2018 09:21 PM

Need a consensus on spark plug replacement frequency for your F4i

My regular mechanic has always tried to encourage me to change out my spark plugs every year. He said that the spark plugs foul quickly in the F4i, so an annual change out is necessary. I really don't buy that and was just wondering how often the longtime F4i owners change out their spark plugs. My mechanic is a good guy and he has never ripped me off. I just think he is being anal and besides i can do the spark plug change myself. Just curious...

74demon

08-22-2018 11:40 PM

what plugs are you running?

boredandstroked

08-23-2018 12:24 PM

Use OEM plugs. Change them every 16,000 miles per OEM specs. Your mechanic is full of you know what.

SunBlue

08-23-2018 02:06 PM

I follow the oem service intervals. You can always take them out and then decide if you want to replace them or not

CBRVFRTOUR

08-23-2018 06:19 PM

Follow Honda's maintenance schedule when it comes to spark plugs. Personally I check them every 10k with a volt meter to ascertain if they are still good. Plenty of videos on youtube to tell you how to do this.

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