Honda CBR1000F Spark Plug
GarageDex's powersports data shows the Honda CBR1000F uses a CR9EH-9 spark plug, gapped to 0.028", or upgrade to the DR8EIX iridium plug. Spark plug fitment varies by year - see the table for each range.
Spark plug fitment by year
| Years | Standard plug | Iridium upgrade | Gap |
|---|---|---|---|
| 2009 | CR9EH-9 | DR8EIX | 0.028" |
| 1987-1988 | CR8EH-9 | - | - |
1000cc motorcycle. Match the exact part code, thread reach, and heat range. The iridium column is the same-fit upgrade for a longer service life.
Spark plugs for your Honda CBR1000F
The recommended plug is a CR9EH-9. Match that code - spark plugs are thread-, reach-, and heat-range-specific, so the part number matters more than the brand. Worth considering: the DR8EIX iridium upgrade - it fits the same port, fires cleaner, and lasts far longer between changes.
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Frequently asked
What spark plug does a Honda CBR1000F take?
GarageDex's powersports data shows the Honda CBR1000F uses a CR9EH-9 spark plug, gapped to 0.028", or upgrade to the DR8EIX iridium plug. Spark plug fitment varies by year - see the table for each range.
What is the spark plug gap on a Honda CBR1000F?
The Honda CBR1000F spark plug gap is 0.028". Set the gap with a feeler gauge before install - iridium plugs come pre-gapped but always verify, since a wrong gap causes misfires and hard starts.
Are iridium spark plugs worth it on a Honda CBR1000F?
The DR8EIX is the iridium upgrade for the standard CR9EH-9. It fits the same port and heat range, fires more reliably, and lasts far longer between changes - a worthwhile swap for most riders, though the standard plug is perfectly fine if you change plugs on schedule.
Does the Honda CBR1000F spark plug change by year?
Yes - the fitment differs across the years we cover: 2009 uses CR9EH-9; 1987-1988 uses CR8EH-9. Match your exact year in the table.
How often should I change the spark plugs on a motorcycle?
Standard plugs typically want replacing every 8,000-12,000 miles (or per your service manual); iridium plugs go much longer. Fouled or worn plugs cause hard starts, misfires, and poor fuel economy - a cheap part that punches above its weight.