CrankDex

Yamaha AT1BMX Spark Plug

The Yamaha AT1BMX takes an NGK BR7ES spark plug, gapped to 0.032".

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Key takeaways

  • Spark plug: NGK BR7ES.
  • Iridium upgrade: NGK CR6HIX.
  • Gap: 0.032 inch - set it before fitting.
  • Covers 1980-1981.
Standard PlugBR7ES
Iridium UpgradeCR6HIX
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 AT1BMX

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 BR7ES plugStandard NGK plug + multi-packsShop Upgrade: CR6HIX iridiumLonger life, stronger sparkShop

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Frequently asked

What spark plug does a Yamaha AT1BMX take?

The Yamaha AT1BMX takes an NGK BR7ES spark plug, gapped to 0.032 inch. The iridium upgrade is the CR6HIX.

What is the spark plug gap for a Yamaha AT1BMX?

The spark plug gap for the Yamaha AT1BMX 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 AT1BMX?

Yes. The CR6HIX is the iridium version of the BR7ES - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.

More parts for your Yamaha AT1BMX

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

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