Spare parts / Haojue / HJ125 series (verify local model) / Spark plug

Ignition · Haojue HJ125 series (verify local model)

Haojue HJ125 series (verify local model) spark plug

Spark plug for the Haojue HJ125 series (verify local model): when to replace it, what it costs, where to buy it and how to fit it.

Replace8,000-12,000 km (iridium up to ~20,000)
Typical priceUS$ 2 to 15
Difficulty1 of 5
Safety-criticalNo
Spark plug for the Haojue HJ125 series (verify local model)Illustration

Workshop photos

Spark plugs with bent ground electrodes
Spark plugs with bent ground electrodes
Spark plug with a light brown healthy tip
Spark plug with a light brown healthy tip
Plug temperature range for hot and cold plugs
Plug temperature range for hot and cold plugs
Spark plug tip with ideal deposits
Spark plug tip with ideal deposits

Check the specification. Brake and drive details for this model vary by market; confirm yours before you buy.

Where to buy

Check the part number for your model year before you buy. Genuine (OEM) parts first; good aftermarket parts are fine for wear items. Links open shop searches; Moto Zero earns nothing from them today and will say so here if that changes.

Fit it yourself

Remove, check, gap and fit a spark plugRider job · 15 to 20 minCheck for a spark safelyHome workshop · 10 to 15 minDiagnose exhaust smoke by colourHome workshop · 15 to 30 min (estimate)
See it working in 3D →How it works

Fitment

ModelHaojue HJ125 series (verify local model)
TypeBoda-boda
Engine125-150 cc
Final driveChain
BrakesDrum
Main marketsKE/Africa

Questions

How often should I replace the spark plug on a Haojue HJ125 series (verify local model)?

As a guide, 8,000-12,000 km (iridium up to ~20,000). The owner's manual for your model wins, and riding on dusty roads, with a passenger or with heavy loads shortens it.

How much does a Haojue HJ125 series (verify local model) spark plug cost?

Typically US$ 2 to 15, depending on genuine or aftermarket and the shop. Prices are indicative.

Can I replace the spark plug myself?

The job is rated 1 of 5 for difficulty. Follow the step-by-step guide and the values for your model.

More parts for the Haojue HJ125 series (verify local model)

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Chain and sprocket kit
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Drum brake shoes
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Engine oil
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Tyres and inner tubes
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Air filter
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12V battery

All parts for the Haojue HJ125 series (verify local model) → Spark plug for other bikes →