What causes Carburetor clogging from ethanol fuel deposits on the Sym Symphony St 125?

Rough idle, hard starting, or black smoke present Estimated fix cost: $30-$80

What causes Front fork oil leaks over time on the Sym Symphony St 125?

Oil stains on fork legs, soft spongy feel Estimated fix cost: $50-$120

Slow or no crank, clicking sound when starting Estimated fix cost: $80-$150

Loose chain, worn sprocket teeth, vibration felt Estimated fix cost: $40-$90

Known issues to inspect before buying a used Sym Symphony St 125. What to check and how much repairs cost.

MODERATE

Rough idle, hard starting, or black smoke present

Fix cost: $30-$80

MODERATE

Oil stains on fork legs, soft spongy feel

Fix cost: $50-$120

SERIOUS

Slow or no crank, clicking sound when starting

Fix cost: $80-$150

MINOR

Loose chain, worn sprocket teeth, vibration felt

Fix cost: $40-$90

☐Cold start the engine before buying

☐Check fork legs for oil residue

☐Inspect chain slack and sprocket condition

☐Look for carburetor cleaning service history

Decent budget commuter, maintain carb and chain