Yamaha YTZ250 Tri-Z Spark Plug
The Yamaha YTZ250 Tri-Z (250cc) takes an NGK DR8EA spark plug, gapped to 0.024".
Key takeaways
- Spark plug: NGK DR8EA.
- Iridium upgrade: NGK DR8EIX.
- Gap: 0.024 inch - set it before fitting.
- Covers 2005-2006.
Buy the plugs for your Yamaha YTZ250 Tri-Z
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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Frequently asked
What spark plug does a Yamaha YTZ250 Tri-Z take?
The Yamaha YTZ250 Tri-Z takes an NGK DR8EA spark plug, gapped to 0.024 inch. The iridium upgrade is the DR8EIX.
What is the spark plug gap for a Yamaha YTZ250 Tri-Z?
The spark plug gap for the Yamaha YTZ250 Tri-Z 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 YTZ250 Tri-Z?
Yes. The DR8EIX is the iridium version of the DR8EA - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Yamaha YTZ250 Tri-Z
We cover the other consumables for your machine too - the exact fit, cited, in one place.