What causes Carb jets clogged from ethanol fuel sitting on the Suzuki Dr-z400s?

Cold start behavior, idle quality, throttle response smoothness Estimated fix cost: $50-$150

What causes Stator failure causing charging system issues on the Suzuki Dr-z400s?

Battery voltage at idle should read 13.5-14.5V Estimated fix cost: $150-$350

Hard cold starting, ask for last valve check date Estimated fix cost: $100-$300

Inspect welds near rear shock mounts closely Estimated fix cost: $200-$500

Known issues to inspect before buying a used Suzuki Dr-z400s. What to check and how much repairs cost.

MODERATE

Cold start behavior, idle quality, throttle response smoothness

Fix cost: $50-$150

SERIOUS

Battery voltage at idle should read 13.5-14.5V

Fix cost: $150-$350

MODERATE

Hard cold starting, ask for last valve check date

Fix cost: $100-$300

SERIOUS

Inspect welds near rear shock mounts closely

Fix cost: $200-$500

☐Check oil color and level on dipstick

☐Cold start only, no pre-warming allowed

☐Inspect chain, sprockets for wear patterns

☐Test all lights, horn, charging voltage

Bulletproof if maintained, avoid neglected examples