Yamaha DT100 Spark Plug
The Yamaha DT100 takes an NGK BR8HS spark plug, gapped to 0.032".
Key takeaways
- Spark plug: NGK BR8HS.
- Iridium upgrade: NGK CR6HIX.
- Gap: 0.032 inch - set it before fitting.
- Covers 1971-2007 (plug changed across years - see table).
Buy the plugs for your Yamaha DT100
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 DT100 spark plugs by year
| Years | Standard | Iridium | Gap |
|---|---|---|---|
| 2000-2007 | BR8HS | CR6HIX | 0.032" |
| 1971 | BR10EG | BR8EIX | 0.024" |
Frequently asked
What spark plug does a Yamaha DT100 take?
The Yamaha DT100 takes an NGK BR8HS spark plug, gapped to 0.032 inch. The iridium upgrade is the CR6HIX. See the by-year table for earlier models.
What is the spark plug gap for a Yamaha DT100?
The spark plug gap for the Yamaha DT100 is 0.032 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 DT100?
Yes. The CR6HIX is the iridium version of the BR8HS - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Yamaha DT100
We cover the other consumables for your machine too - the exact fit, cited, in one place.