CrankDex

Yamaha WR250Z Spark Plug

The Yamaha WR250Z (250cc) takes an NGK CR9E spark plug, gapped to 0.032".

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Key takeaways

  • Spark plug: NGK CR9E.
  • Iridium upgrade: NGK CR9EIX.
  • Gap: 0.032 inch - set it before fitting.
  • Covers 2008-2010.
Standard PlugCR9E
Iridium UpgradeCR9EIX
Gap0.032"
Verified fitLast checked
Sources: NGK powersports application catalogue
Reviewed by the CrankDex editorial team against manufacturer and retailer fitment data.

Buy the plugs for your Yamaha WR250Z

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.

Shop the CR9E plugStandard NGK plug + multi-packsShop Upgrade: CR9EIX iridiumLonger life, stronger sparkShop

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Frequently asked

What spark plug does a Yamaha WR250Z take?

The Yamaha WR250Z takes an NGK CR9E spark plug, gapped to 0.032 inch. The iridium upgrade is the CR9EIX.

What is the spark plug gap for a Yamaha WR250Z?

The spark plug gap for the Yamaha WR250Z 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 WR250Z?

Yes. The CR9EIX is the iridium version of the CR9E - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.

More parts for your Yamaha WR250Z

We cover the other consumables for your machine too - the exact fit, cited, in one place.

BatteryYamaha batterysAir & oil filterYamaha air & oil filtersTire sizefor the WR250Z

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