Yamaha XS650 Spark Plug
The Yamaha XS650 (650cc) takes an NGK BPR7ES spark plug, gapped to 0.035".
Key takeaways
- Spark plug: NGK BPR7ES.
- Iridium upgrade: NGK BR8EIX.
- Gap: 0.035 inch - set it before fitting.
- Covers 2005-2010 (plug changed across years - see table).
Buy the plugs for your Yamaha XS650
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 XS650 spark plugs by year
| Years | Standard | Iridium | Gap |
|---|---|---|---|
| 2005-2010 | BPR7ES | BR8EIX | 0.035" |
| 2005-2010 | BR8ES | BPR7EIX | 0.024" |
| 2005-2010 | BPR7ES | BR8EIX | 0.035" |
| 2005-2010 | BR8ES | BPR7EIX | 0.024" |
Frequently asked
What spark plug does a Yamaha XS650 take?
The Yamaha XS650 takes an NGK BPR7ES spark plug, gapped to 0.035 inch. The iridium upgrade is the BR8EIX. See the by-year table for earlier models.
What is the spark plug gap for a Yamaha XS650?
The spark plug gap for the Yamaha XS650 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 Yamaha XS650?
Yes. The BR8EIX is the iridium version of the BPR7ES - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Yamaha XS650
We cover the other consumables for your machine too - the exact fit, cited, in one place.