Honda CRF150F Spark Plug
The Honda CRF150F (100cc) takes an NGK R0161-10 spark plug, gapped to 0.035".
Key takeaways
- Spark plug: NGK R0161-10.
- Iridium upgrade available in the same fit.
- Gap: 0.035 inch - set it before fitting.
- Covers 1959-1987 (plug changed across years - see table).
Buy the plugs for your Honda CRF150F
The standard plug is the exact-fit replacement. The iridium version drops into the same spot, lasts longer, and fires a little stronger for a few dollars more. Many engines take more than one - check how many cylinders you have.
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Honda CRF150F spark plugs by year
| Years | Standard | Iridium | Gap |
|---|---|---|---|
| 1986-1987 | R0161-10 | - | 0.035" |
| 1959-1962 | DR8HS | - | 0.028" |
Frequently asked
What spark plug does a Honda CRF150F take?
The Honda CRF150F takes an NGK R0161-10 spark plug, gapped to 0.035 inch. See the by-year table for earlier models.
What is the spark plug gap for a Honda CRF150F?
The spark plug gap for the Honda CRF150F is 0.035 inch. Check and set the gap before fitting a new plug - most powersports plugs need a small adjustment out of the box.
Can I use an iridium plug in a Honda CRF150F?
Yes. The iridium version drops into the same spot - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Honda CRF150F
We cover the other consumables for your machine too - the exact fit, cited, in one place.