Suzuki GSF1250S/SA Spark Plug
The Suzuki GSF1250S/SA (1300cc) takes an NGK JR9B spark plug, gapped to 0.028".
Key takeaways
- Spark plug: NGK JR9B.
- Iridium upgrade: NGK CR9EIX.
- Gap: 0.028 inch - set it before fitting.
- Covers 1985-1986.
Buy the plugs for your Suzuki GSF1250S/SA
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 Suzuki GSF1250S/SA take?
The Suzuki GSF1250S/SA takes an NGK JR9B spark plug, gapped to 0.028 inch. The iridium upgrade is the CR9EIX.
What is the spark plug gap for a Suzuki GSF1250S/SA?
The spark plug gap for the Suzuki GSF1250S/SA 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 Suzuki GSF1250S/SA?
Yes. The CR9EIX is the iridium version of the JR9B - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Suzuki GSF1250S/SA
We cover the other consumables for your machine too - the exact fit, cited, in one place.