CrankDex

Yamaha SR250S Spark Plug

The Yamaha SR250S (250cc) takes an NGK BR10EIX spark plug, gapped to 0.024".

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Key takeaways

  • Iridium plug: NGK BR10EIX.
  • Iridium upgrade available in the same fit.
  • Gap: 0.024 inch - set it before fitting.
  • Covers 1978.
Standard Plug-
Iridium UpgradeBR10EIX
Gap0.024"
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 SR250S

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: BR10EIX iridiumLonger life, stronger sparkShop

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Frequently asked

What is the spark plug gap for a Yamaha SR250S?

The spark plug gap for the Yamaha SR250S 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 SR250S?

Yes. The BR10EIX 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 SR250S

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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