Updated specs are available.
Spark plug gap (Mazdaspeed)
This spec doesn't apply to the car you selected.
Not yet checked against the factory manual for your car's year. It's verified in the 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture); later manuals may differ.
0.7–0.8 mm (0.028–0.031 in)
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure
Use a wire-type gap gauge; do not adjust the gap. Replace the spark plug if outside specification. Do not clean with a wire brush.
Applies to
- NB 2004–2005 (BP-Z3-TURBO, 6MT) — 2004 applicability inferred from 2005 BP WITH TC factory evidence within the owner-approved MSM family.
- Verified in: 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)
Sources
- 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)Tier 1Page PDF p. 916Printed: “Standard plug gap 0.7—0.8 mm {0.028—0.031 in}”
Also in Additional factory manual gap audit
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- Front brake disc after-machining thickness — 270 mm rotor
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- Fuel injector resistance (NA6)
- ISC valve solenoid resistance (NA6)
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- Fuel line pressure — engine off, pump operating (NA6)
- Intake manifold bracket bolts (NA6)
- Fuel line pressure — engine idling (NA6)
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- Spark plug gap (NA6)
- Engine firing order (NA6)
- Base ignition timing (NA6)
- Spark plug gap (NA 1.8)
- Spark plug gap (NB1)
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