What causes Carburetor clogging from ethanol fuel on the Haojue Dk150?

Cold start difficulty, rough idle, hesitation on throttle Estimated fix cost: $20-$50

What causes Cam chain tensioner wear and noise on the Haojue Dk150?

Rattling on startup, listen cold engine first minute Estimated fix cost: $30-$80

Oil residue on fork tubes, soft front suspension feel Estimated fix cost: $40-$90

Weak battery, flickering lights, check charging voltage Estimated fix cost: $25-$60

Known issues to inspect before buying a used Haojue Dk150. What to check and how much repairs cost.

MODERATE

Cold start difficulty, rough idle, hesitation on throttle

Fix cost: $20-$50

MODERATE

Rattling on startup, listen cold engine first minute

Fix cost: $30-$80

MODERATE

Oil residue on fork tubes, soft front suspension feel

Fix cost: $40-$90

SERIOUS

Weak battery, flickering lights, check charging voltage

Fix cost: $25-$60

☐Start cold, listen for top-end rattle

☐Check fork tubes for oil residue

☐Test lights and charging at idle

☐Inspect carb for black sooty deposits

Decent budget bike, maintain fuel system regularly