Yamaha R3 Spark Plug
The Yamaha R3 takes an NGK BR8EG spark plug, gapped to 0.024".
Key takeaways
- Spark plug: NGK BR8EG.
- Iridium upgrade: NGK BR8EIX.
- Gap: 0.024 inch - set it before fitting.
- Covers 1968-1988 (plug changed across years - see table).
Buy the plugs for your Yamaha R3
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.
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Yamaha R3 spark plugs by year
| Years | Standard | Iridium | Gap |
|---|---|---|---|
| 1987-1988 | BR8EG | BR8EIX | 0.024" |
| 1968 | BPR6ES | BR10EIX | 0.024" |
Frequently asked
What spark plug does a Yamaha R3 take?
The Yamaha R3 takes an NGK BR8EG spark plug, gapped to 0.024 inch. The iridium upgrade is the BR8EIX. See the by-year table for earlier models.
What is the spark plug gap for a Yamaha R3?
The spark plug gap for the Yamaha R3 is 0.024 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 Yamaha R3?
Yes. The BR8EIX is the iridium version of the BR8EG - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Yamaha R3
We cover the other consumables for your machine too - the exact fit, cited, in one place.