Haojue HJ125 series (verify local model) spare parts

18 parts for the Haojue HJ125 series (verify local model): what wears, when to replace it, where to buy it and how to fit it.

125-150 ccChain driveDrum brakesPetrol

Check the specification. Details for this model vary by market; confirm yours before you buy.

Drivetrain

Part	Replace	Guide
Chain and sprocket kit	15,000-25,000 km (replace as a set)	Replace the chain and sprockets
Drum brake shoes	10,000-18,000 km	Service a drum brake
Engine oil	3,000-5,000 km mineral, longer synthetic	Change the engine oil and clean the strainer
Tyres and inner tubes	10,000-25,000 km or 5 years age	Inspect tyres for wear and damage
Spark plug	8,000-12,000 km (iridium up to ~20,000)	Remove, check, gap and fit a spark plug
Air filter	5,000-12,000 km (dusty roads sooner)	Clean or replace the air filter
12V battery	2-4 years	Test and charge a 12 V battery
Clutch friction plates	20,000-40,000 km	Inspect and replace clutch plates and springs
Oil filter / strainer	Every 1-2 oil changes	Change the engine oil and clean the strainer
Brake and clutch levers	Crash replacement	Adjust a drum brake
Mirrors	Crash replacement	Tighten and adjust mirrors
Headlight bulb / LED unit	Failure	Replace a bulb
Front fork oil seals	20,000-40,000 km or when leaking	Replace fork oil and seals
Clutch cable	1-2 years	Adjust clutch lever free play
Throttle cable	1-3 years	Adjust throttle free play
Rear shock absorber	30,000-50,000 km or when leaking	Check the rear shock absorbers
Wheel bearings	20,000-40,000 km or play detected	Check wheel bearings
Regulator rectifier	Failure	Test the regulator rectifier

Indicative intervals. The owner's manual for your model wins.