Spark Plug Replacement every 8,000mi

[flynrider]

The Australian manual says inspect, clean and replace plugs if necessary at 8,000 miles or 12 months and replace at 16,000 miles or 24 months. The manual gives service intervals in miles as well as kms.

Do you know if they are standard plugs or platinum tipped? In the US they seem to be just standard NGK plugs, although pretty pricey due to the custom size.

The long nosed standard resistor plugs on the CB1100 are ridiculously priced. When I first checked the prices I assumed that they were platinum or iridium because of the price. Nope.

As far as replacement goes, I don't generally follow the manual. I pull 'em, inspect and if they aren't worn out they get cleaned, gapped and go back in.