CrankDex

Yamaha WR500 Spark Plug

The Yamaha WR500 (500cc) takes an NGK CR7EIX spark plug, gapped to 0.028".

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Key takeaways

  • Iridium plug: NGK CR7EIX.
  • Iridium upgrade available in the same fit.
  • Gap: 0.028 inch - set it before fitting.
  • Covers 2009-2010.
Standard Plug-
Iridium UpgradeCR7EIX
Gap0.028"
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 WR500

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.

Upgrade: CR7EIX iridiumLonger life, stronger sparkShop

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Frequently asked

What is the spark plug gap for a Yamaha WR500?

The spark plug gap for the Yamaha WR500 is 0.028 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 WR500?

Yes. The CR7EIX is the iridium version of the null - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.

More parts for your Yamaha WR500

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

BatteryYamaha batterysAir & oil filterYamaha air & oil filtersTire sizeYamaha tire sizes

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