What causes Throttle body sync causing rough idle/surging on the Suzuki Gsx-s750?

Test idle smoothness, snap throttle at low RPM Estimated fix cost: $100-$200

What causes Stator/charging system failure on early models on the Suzuki Gsx-s750?

Check battery voltage at idle, look for dimming lights Estimated fix cost: $300-$500

Inspect underside of engine for coolant residue or staining Estimated fix cost: $150-$350

Wipe forks clean, check for fresh oil film after test ride Estimated fix cost: $100-$250

Known issues to inspect before buying a used Suzuki Gsx-s750. What to check and how much repairs cost.

MODERATE

Test idle smoothness, snap throttle at low RPM

Fix cost: $100-$200

SERIOUS

Check battery voltage at idle, look for dimming lights

Fix cost: $300-$500

MODERATE

Inspect underside of engine for coolant residue or staining

Fix cost: $150-$350

MINOR

Wipe forks clean, check for fresh oil film after test ride

Fix cost: $100-$250

☐Check service history and coolant change records

☐Test ride above 4000 RPM for smooth power delivery

☐Inspect frame and subframe for crash damage signs

☐Verify charging voltage with multimeter at 3000 RPM

Generally reliable, minor electrical issues worth watching